10b633ce522ac0ef24f1f309b636f7ba05123ca6993b59fe86f3eb84c97adc1f

Analysis

max time kernel
150s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
19/06/2024, 22:53

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General

Target

00ff63a9165af91bf93bc37551687b7f_JaffaCakes118.dll
Size

189KB
MD5

00ff63a9165af91bf93bc37551687b7f
SHA1

3509e729c2a4f3f5efc710a03f8a45cdc97d80e3
SHA256

10b633ce522ac0ef24f1f309b636f7ba05123ca6993b59fe86f3eb84c97adc1f
SHA512

1253ef27b76cdbd027723cdd02562a82c146934ab2c8caa5c5e3852c2ed1dbb581a5c558bbab962abdfb69b157988b08e7a907f93b3b13525a334aaab9da4d95
SSDEEP

384:qdNKZWH2T2ZBCZGxp65UBAcUNBMAinUJLa/7PhwTzEdxYYUMn4x:qd4Ip65UB6PMnUJYhwvEdV

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\{40AF1289-F140-A140-D012-C1458759FC04}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{40AF1289-F140-A140-D012-C1458759FC04}\ = "ypcqchlp.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\{40AF1289-F140-A140-D012-C1458759FC04}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40AF1289-F140-A140-D012-C1458759FC04}\InprocServer32\ = "C:\\Windows\\SysWow64\\ypcqchlp.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40AF1289-F140-A140-D012-C1458759FC04}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{40AF1289-F140-A140-D012-C1458759FC04}\InprocServer32	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	rundll32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4180	rundll32.exe
4180	rundll32.exe
4180	rundll32.exe
4180	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2672 wrote to memory of 4180	2672	rundll32.exe	83
PID 2672 wrote to memory of 4180	2672	rundll32.exe	83
PID 2672 wrote to memory of 4180	2672	rundll32.exe	83
PID 4180 wrote to memory of 2616	4180	rundll32.exe	84
PID 4180 wrote to memory of 2616	4180	rundll32.exe	84
PID 4180 wrote to memory of 2616	4180	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\00ff63a9165af91bf93bc37551687b7f_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\00ff63a9165af91bf93bc37551687b7f_JaffaCakes118.dll,#1
  2⤵
  - Installs/modifies Browser Helper Object
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4180
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\~DFD240594500.bat
    3⤵
    PID:2616

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\~DFD240594500.bat

Filesize
121B

MD5
09517fc62284f33e877a276463580bd1

SHA1
0b14fe1db4493818f9de0bf2a56ee5370b8d479a

SHA256
6cc6bbb1f3f754b6894d84130f5f2d86569ac3a603e1632d3cefa028f22b6238

SHA512
1b924dd216d0f38199cc6df215e65ff260aa48fa37aa620dabcbc616f434643bd1f2e617d66b14bd52900214148741565128ba9589782ba582fd7308369f4a4d

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