cd83193da72d4a644fa7931182eca640531bd38007a068db795f76b8a7ebde4d

Analysis

max time kernel
138s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
19/07/2024, 20:19

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General

Target

5d842f0096e91dfcbaa574032dab1062_JaffaCakes118.dll
Size

22KB
MD5

5d842f0096e91dfcbaa574032dab1062
SHA1

e9f2f7433364c8f4b0993251478f0a826269e341
SHA256

cd83193da72d4a644fa7931182eca640531bd38007a068db795f76b8a7ebde4d
SHA512

d1844797153e397d5b64a91b488022ca31b4e12045aa42881c24eb86386ce5b5ade69307681bf157580973cb453b2ba058fe8862a8cc4b789330cc7115131cfc
SSDEEP

384:tyVlNjtU2eESL9pf09rH65DP90yGDQqEvvHQcSVNuzlUZ2kNKFjAh:wVlGL7M6FP9lv4cSuiZ2kkA

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\{14698742-2059-3025-9058-954023874141}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{14698742-2059-3025-9058-954023874141}\ = "jkhxaklo.dll"	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\verclsid.exe	rundll32.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{14698742-2059-3025-9058-954023874141}\InprocServer32	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{14698742-2059-3025-9058-954023874141}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{14698742-2059-3025-9058-954023874141}\InprocServer32\ = "C:\\Windows\\SysWow64\\jkhxaklo.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{14698742-2059-3025-9058-954023874141}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1968	rundll32.exe
1968	rundll32.exe
1968	rundll32.exe
1968	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1968	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3252 wrote to memory of 1968	3252	rundll32.exe	84
PID 3252 wrote to memory of 1968	3252	rundll32.exe	84
PID 3252 wrote to memory of 1968	3252	rundll32.exe	84
PID 1968 wrote to memory of 4464	1968	rundll32.exe	86
PID 1968 wrote to memory of 4464	1968	rundll32.exe	86
PID 1968 wrote to memory of 4464	1968	rundll32.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5d842f0096e91dfcbaa574032dab1062_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3252
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\5d842f0096e91dfcbaa574032dab1062_JaffaCakes118.dll,#1
  2⤵
  - Installs/modifies Browser Helper Object
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1968
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\~DFD240620484.bat
    3⤵
    PID:4464

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\~DFD240620484.bat

Filesize
121B

MD5
09517fc62284f33e877a276463580bd1

SHA1
0b14fe1db4493818f9de0bf2a56ee5370b8d479a

SHA256
6cc6bbb1f3f754b6894d84130f5f2d86569ac3a603e1632d3cefa028f22b6238

SHA512
1b924dd216d0f38199cc6df215e65ff260aa48fa37aa620dabcbc616f434643bd1f2e617d66b14bd52900214148741565128ba9589782ba582fd7308369f4a4d

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