53b2e27e4e695ad4031d1c4889bf8aa18c7e7a1aa4073b5417ba3b00dd6a9438

Analysis

max time kernel
150s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
14/09/2024, 22:34

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General

Target

e12bc17db0cb163d28ee9b259999b59e_JaffaCakes118.dll
Size

24KB
MD5

e12bc17db0cb163d28ee9b259999b59e
SHA1

d41b1543af53188c8a5a035319a916f093de9d8b
SHA256

53b2e27e4e695ad4031d1c4889bf8aa18c7e7a1aa4073b5417ba3b00dd6a9438
SHA512

2f23bfb2e54f07bd37f4c16cb522b80350a59fa6f27559e75b51760719ffd9bdc14b0e87d6875687ef8c6bbb6bea3a39d3fdfabe8cbe89d3066fdb5d55761718
SSDEEP

384:iSdD9d6GobMOkJQiqNU5SfEjVo+OZR3qNk0JJcp0fbsbvzeU4bko/8:b0FDZ25WEjVWR3qN7JOGCbN4bka

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\{7319A1F1-9410-9654-3201-345FFA349137}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{7319A1F1-9410-9654-3201-345FFA349137}\ = "zywmgime.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\{7319A1F1-9410-9654-3201-345FFA349137}\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\{7319A1F1-9410-9654-3201-345FFA349137}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7319A1F1-9410-9654-3201-345FFA349137}\InprocServer32\ = "C:\\Windows\\SysWow64\\zywmgime.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7319A1F1-9410-9654-3201-345FFA349137}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4848	rundll32.exe
4848	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4848	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 468 wrote to memory of 4848	468	rundll32.exe	83
PID 468 wrote to memory of 4848	468	rundll32.exe	83
PID 468 wrote to memory of 4848	468	rundll32.exe	83
PID 4848 wrote to memory of 2320	4848	rundll32.exe	84
PID 4848 wrote to memory of 2320	4848	rundll32.exe	84
PID 4848 wrote to memory of 2320	4848	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e12bc17db0cb163d28ee9b259999b59e_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:468
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e12bc17db0cb163d28ee9b259999b59e_JaffaCakes118.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:4848
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\~DFD240615718.bat
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2320

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\~DFD240615718.bat

Filesize
121B

MD5
09517fc62284f33e877a276463580bd1

SHA1
0b14fe1db4493818f9de0bf2a56ee5370b8d479a

SHA256
6cc6bbb1f3f754b6894d84130f5f2d86569ac3a603e1632d3cefa028f22b6238

SHA512
1b924dd216d0f38199cc6df215e65ff260aa48fa37aa620dabcbc616f434643bd1f2e617d66b14bd52900214148741565128ba9589782ba582fd7308369f4a4d

Download Submit
memory/4848-0-0x00000000004E0000-0x00000000004ED000-memory.dmp

Filesize
52KB

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