Analysis
- max time kernel
93s - max time network
94s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system - submitted
20/06/2024, 02:55
Behavioral task
behavioral1
Sample
0234ff424adc84564c09d4bf12c637c4_JaffaCakes118.dll
Resource
win7-20240221-en
windows7-x64
4 signatures
150 seconds
General
- Target 0234ff424adc84564c09d4bf12c637c4_JaffaCakes118.dll
- Size 755KB
- Sample240620-dee8wavdqa
- SHA256 31d278009f858fbb89476c9f689677010070902072fc5376857278c573cd8127
- MD5 0234ff424adc84564c09d4bf12c637c4
- SHA1 508b561f259ae41f161efa46083fa9781c738c35
- SHA512 687a1d02ebb3482550f076fc6ab98293c7611e41c1475e3ee84abd2538e0961635029ba0e373dc792231425fe5b34e2f4259dd66a61ad4c09d30ba4e820fd749
- SSDEEP 12288:uLozFoYl5OJ4KX1rFBVoP9x+0m5Wsr3SgyXIKcOzN+IldpxvhvviFbJgdm8TIxAo:uUJoYuJVfBy/+0JsZKcyrpxvh1UdOAuY
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Installs/modifies Browser Helper Object 2 TTPs 3 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{FCAAAC14-BC46-40CA-9CB2-CBB12C6739EB} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{FCAAAC14-BC46-40CA-9CB2-CBB12C6739EB} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{FCAAAC14-BC46-40CA-9CB2-CBB12C6739EB}\ = "Banco do Brasil S.A." regsvr32.exe - Modifies registry class 6 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAAAC14-BC46-40CA-9CB2-CBB12C6739EB} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAAAC14-BC46-40CA-9CB2-CBB12C6739EB}\ regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAAAC14-BC46-40CA-9CB2-CBB12C6739EB}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAAAC14-BC46-40CA-9CB2-CBB12C6739EB}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0234ff424adc84564c09d4bf12c637c4_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAAAC14-BC46-40CA-9CB2-CBB12C6739EB}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAAAC14-BC46-40CA-9CB2-CBB12C6739EB}\ = "GbiehObj Class" regsvr32.exe - Suspicious use of AdjustPrivilegeToken 19 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 1644 regsvr32.exe Token: SeSecurityPrivilege 1644 regsvr32.exe Token: SeTakeOwnershipPrivilege 1644 regsvr32.exe Token: SeLoadDriverPrivilege 1644 regsvr32.exe Token: SeSystemProfilePrivilege 1644 regsvr32.exe Token: SeSystemtimePrivilege 1644 regsvr32.exe Token: SeProfSingleProcessPrivilege 1644 regsvr32.exe Token: SeIncBasePriorityPrivilege 1644 regsvr32.exe Token: SeCreatePagefilePrivilege 1644 regsvr32.exe Token: SeShutdownPrivilege 1644 regsvr32.exe Token: SeDebugPrivilege 1644 regsvr32.exe Token: SeSystemEnvironmentPrivilege 1644 regsvr32.exe Token: SeRemoteShutdownPrivilege 1644 regsvr32.exe Token: SeUndockPrivilege 1644 regsvr32.exe Token: SeManageVolumePrivilege 1644 regsvr32.exe Token: 33 1644 regsvr32.exe Token: 34 1644 regsvr32.exe Token: 35 1644 regsvr32.exe Token: 36 1644 regsvr32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3480 wrote to memory of 1644 3480 regsvr32.exe 82 PID 3480 wrote to memory of 1644 3480 regsvr32.exe 82 PID 3480 wrote to memory of 1644 3480 regsvr32.exe 82
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\0234ff424adc84564c09d4bf12c637c4_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:3480 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\0234ff424adc84564c09d4bf12c637c4_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
PID:1644
-