3d40ab8b1b4ff400a109718a44f081591323e47b8e51d206b1b1f59c452633a9

Analysis

max time kernel
133s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
28/03/2025, 14:26

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General

Target

JaffaCakes118_8ac042335b85460bec74fbef0a9f7450.dll
Size

449KB
MD5

8ac042335b85460bec74fbef0a9f7450
SHA1

5390505658d4961a8ccbe67e26dcb0287b96a6ea
SHA256

3d40ab8b1b4ff400a109718a44f081591323e47b8e51d206b1b1f59c452633a9
SHA512

0f4151d834922a59781ae08137e8862685ed3bd900dd70f8cbc337f7ad30e38b49b3ed9d4aa5eb10ca9fb7ca7d27145115c33499d00900e1ecb8f221bac67b6f
SSDEEP

384:PSdD9d6GoHI47Yuonrv+3EpkdQpaseJqut7JrgDRgYa7jv3+zQn2kUr20LLLLLL3:KAIWAT+UpkWILjJrAP1Qn2kw

Score

6^/10

adware discovery 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\{7C954872-1230-6541-9548-6541025884C7}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{7C954872-1230-6541-9548-6541025884C7}\ = "fd233ds4f3.dll"	rundll32.exe

Drops file in System32 directory 1 IoCs

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

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7C954872-1230-6541-9548-6541025884C7}\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\{7C954872-1230-6541-9548-6541025884C7}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7C954872-1230-6541-9548-6541025884C7}\InprocServer32\ = "C:\\Windows\\SysWow64\\fd233ds4f3.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7C954872-1230-6541-9548-6541025884C7}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2436	rundll32.exe
2436	rundll32.exe
2436	rundll32.exe
2436	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2436	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3716 wrote to memory of 2436	3716	rundll32.exe	86
PID 3716 wrote to memory of 2436	3716	rundll32.exe	86
PID 3716 wrote to memory of 2436	3716	rundll32.exe	86
PID 2436 wrote to memory of 3280	2436	rundll32.exe	87
PID 2436 wrote to memory of 3280	2436	rundll32.exe	87
PID 2436 wrote to memory of 3280	2436	rundll32.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ac042335b85460bec74fbef0a9f7450.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3716
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ac042335b85460bec74fbef0a9f7450.dll,#1
  2⤵
  - Installs/modifies Browser Helper Object
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2436
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\~DFD240602328.bat
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3280

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\~DFD240602328.bat

Filesize
121B

MD5
09517fc62284f33e877a276463580bd1

SHA1
0b14fe1db4493818f9de0bf2a56ee5370b8d479a

SHA256
6cc6bbb1f3f754b6894d84130f5f2d86569ac3a603e1632d3cefa028f22b6238

SHA512
1b924dd216d0f38199cc6df215e65ff260aa48fa37aa620dabcbc616f434643bd1f2e617d66b14bd52900214148741565128ba9589782ba582fd7308369f4a4d

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