18a147267a1d99540f2adad7efa7909fc12f2a26abbcbda78235ec4c66978fb7

General

Target
e842c03a2531b4b175d58e7093834eb4_JaffaCakes118.dll
Size 48KB
Sample240408-yfzzwsdc6s
SHA256 18a147267a1d99540f2adad7efa7909fc12f2a26abbcbda78235ec4c66978fb7
MD5 e842c03a2531b4b175d58e7093834eb4
SHA1 33991e53a5673082eb9b86efa22ff8cba294ec49
SHA512 f2bc00549135ea30d73ee140990cbee66470ffc95de5b4505400a6870d27b393f4c54094963b7215465a205e6e09c4e7fc9796ea0bc2fa004e5cd57664d41d29
SSDEEP 768:sVauTz/vdbZhUQfFBJrLTQ6TrwtaPWiBz4fNuIZCNMcxrS/X0+O+U:sZDVLtl7Q6TqOWqsfChxkXO+U
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{3C4B6AAC-67FB-49A9-B98E-5846910E769D}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{3C4B6AAC-67FB-49A9-B98E-5846910E769D}\NoExplorer = "1"	regsvr32.exe

Modifies Internet Explorer settings 1 TTPs 3 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	regsvr32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\WebBrowser\ITBarLayout = 110000000000000000000000040000001f0000000000000001000000000000000000000005000000000400000000000002000000010000000000000004000000a100000000000000030000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	regsvr32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\WebBrowser\ITBar7Layout = 130000000000000000000000040000001f0000000000000001000000000000000000000005000000000400000000000002000000010000000000000004000000a100000000000000030000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3C4B6AAC-67FB-49A9-B98E-5846910E769D}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e842c03a2531b4b175d58e7093834eb4_JaffaCakes118.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\Shell	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\shell\OpenHomePage	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3C4B6AAC-67FB-49A9-B98E-5846910E769D}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3C4B6AAC-67FB-49A9-B98E-5846910E769D}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\Shell\OpenHomePage\Command	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\shell\OpenHomePage\Command	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\Shell\OpenHomePage	regsvr32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2700 wrote to memory of 4968	2700	regsvr32.exe	84
PID 2700 wrote to memory of 4968	2700	regsvr32.exe	84
PID 2700 wrote to memory of 4968	2700	regsvr32.exe	84
PID 4968 wrote to memory of 2588	4968	regsvr32.exe	85
PID 4968 wrote to memory of 2588	4968	regsvr32.exe	85
PID 4968 wrote to memory of 2588	4968	regsvr32.exe	85

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\e842c03a2531b4b175d58e7093834eb4_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2700
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\e842c03a2531b4b175d58e7093834eb4_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies Internet Explorer settings
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:4968
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\system32\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\e842c03a2531b4b175d58e7093834eb4_JaffaCakes118.dll",DllGetObjectType
    3⤵
    PID:2588

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

1

T1176

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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