a296bf4b955f9522f0f26d8977633a8b96de8034598ea1f35d4ad775b943a75b

Analysis

max time kernel
147s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06/04/2024, 20:33

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General

Target
e33aadd559dc799e3fd29b9162874211_JaffaCakes118.dll
Size 641KB
Sample240406-zb88fabb27
SHA256 a296bf4b955f9522f0f26d8977633a8b96de8034598ea1f35d4ad775b943a75b
MD5 e33aadd559dc799e3fd29b9162874211
SHA1 a396a80aee39b59e7f10720a7e7c59d2299efcde
SHA512 47a984064bbfe16091b6b5d7dabc282fc2867b109988dcb3150e4b84d892e542ed42a23cfb95f868bbae2fc9f5185d5ac984bfe93092c6d68d5be52454c5eb8d
SSDEEP 12288:g0Et9YDc5DMWfT44XUDxoyiD02sHtadmA85phcw2tePm:ItWDc/EXouPtemA8fhpA+
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-284B-C9EC-38E6-F16647CEBE8A}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\e33aadd559dc799e3fd29b9162874211_JaffaCakes118.brm inc	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\e33aadd559dc799e3fd29b9162874211_JaffaCakes118.brm inc\ = "brm inc"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-284B-C9EC-38E6-F16647CEBE8A}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-284B-C9EC-38E6-F16647CEBE8A}\ProgID\ = "e33aadd559dc799e3fd29b9162874211_JaffaCakes118.brm inc"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-284B-C9EC-38E6-F16647CEBE8A}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e33aadd559dc799e3fd29b9162874211_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-284B-C9EC-38E6-F16647CEBE8A}\ = "brm inc"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-284B-C9EC-38E6-F16647CEBE8A}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-284B-C9EC-38E6-F16647CEBE8A}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\e33aadd559dc799e3fd29b9162874211_JaffaCakes118.brm inc\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\e33aadd559dc799e3fd29b9162874211_JaffaCakes118.brm inc\Clsid\ = "{CC01FC6C-284B-C9EC-38E6-F16647CEBE8A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-284B-C9EC-38E6-F16647CEBE8A}	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4024 wrote to memory of 1928	4024	regsvr32.exe	87
PID 4024 wrote to memory of 1928	4024	regsvr32.exe	87
PID 4024 wrote to memory of 1928	4024	regsvr32.exe	87

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\e33aadd559dc799e3fd29b9162874211_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4024
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\e33aadd559dc799e3fd29b9162874211_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:1928

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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