e76c76ad77f213e3fce30713053ffaea7fcbef19cf2b4f32a405751edf74e1ed

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15/04/2024, 11:43

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General

Target
f0f9d394d608be66b3b4f56efaba3bca_JaffaCakes118.dll
Size 639KB
Sample240415-nvz84ade66
SHA256 e76c76ad77f213e3fce30713053ffaea7fcbef19cf2b4f32a405751edf74e1ed
MD5 f0f9d394d608be66b3b4f56efaba3bca
SHA1 796c74f0613ab61f3d83f9a0d547ee99edb30584
SHA512 ea2a508090f5672a9f4efa8f6d6a14dd27556eb5fe0a556d3f74701d7d335fd73ff6b014846fedd519185000657a990b36a33617534a2a4a245a88d7047efe7c
SSDEEP 12288:CkdtYzsZDM2fjYiV/UzxoyS7nUmsn7lgATh42tePm:/dGzs/0kwolUf7lzh4A+
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 1 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\{CC01FC6C-5B28-9558-58EE-FEE16AD28C31}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-5B28-9558-58EE-FEE16AD28C31}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-5B28-9558-58EE-FEE16AD28C31}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\f0f9d394d608be66b3b4f56efaba3bca_JaffaCakes118.brm inc\Clsid\ = "{CC01FC6C-5B28-9558-58EE-FEE16AD28C31}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-5B28-9558-58EE-FEE16AD28C31}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-5B28-9558-58EE-FEE16AD28C31}\ = "brm inc"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-5B28-9558-58EE-FEE16AD28C31}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f0f9d394d608be66b3b4f56efaba3bca_JaffaCakes118.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\f0f9d394d608be66b3b4f56efaba3bca_JaffaCakes118.brm inc	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\f0f9d394d608be66b3b4f56efaba3bca_JaffaCakes118.brm inc\ = "brm inc"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\f0f9d394d608be66b3b4f56efaba3bca_JaffaCakes118.brm inc\Clsid	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-5B28-9558-58EE-FEE16AD28C31}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-5B28-9558-58EE-FEE16AD28C31}\ProgID\ = "f0f9d394d608be66b3b4f56efaba3bca_JaffaCakes118.brm inc"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1432 wrote to memory of 2348	1432	regsvr32.exe	28
PID 1432 wrote to memory of 2348	1432	regsvr32.exe	28
PID 1432 wrote to memory of 2348	1432	regsvr32.exe	28
PID 1432 wrote to memory of 2348	1432	regsvr32.exe	28
PID 1432 wrote to memory of 2348	1432	regsvr32.exe	28
PID 1432 wrote to memory of 2348	1432	regsvr32.exe	28
PID 1432 wrote to memory of 2348	1432	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\f0f9d394d608be66b3b4f56efaba3bca_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1432
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\f0f9d394d608be66b3b4f56efaba3bca_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2348

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

memory/2348-0-0x0000000001EB0000-0x0000000001F54000-memory.dmp

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