2dead1b7f6c16aab804755465d025c143666dc668a71872fe0095b231b886755

Analysis

max time kernel
138s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
11/08/2024, 16:51

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General

Target
8b2bcbd9ec5b03151d6d29c3c382c94c_JaffaCakes118.dll
Size 105KB
Sample240811-vc7nsayalm
SHA256 2dead1b7f6c16aab804755465d025c143666dc668a71872fe0095b231b886755
MD5 8b2bcbd9ec5b03151d6d29c3c382c94c
SHA1 8aeb90da4a4c62078ba01d8d31181cb611b00544
SHA512 b23c65083945118f90d9a402c7956f5ef75c01f5c36ae2d89080638895e2309bf4148eec70ea84d4e237b315d853d731387fb0325d0b5f8f723a8284529fe29f
SSDEEP 3072:nzUsSGfLyqIJdfuFmhnom6wmb27cVnDxKPm:zqJpuIp6wk/xIm
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

adware discovery stealer upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2756-0-0x0000000000400000-0x0000000000444000-memory.dmp	upx

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\{010F8EC1-FB4C-428C-A078-8E9B4813D1B9}	regsvr32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	regsvr32.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{010F8EC1-FB4C-428C-A078-8E9B4813D1B9}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{010F8EC1-FB4C-428C-A078-8E9B4813D1B9}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8b2bcbd9ec5b03151d6d29c3c382c94c_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{010F8EC1-FB4C-428C-A078-8E9B4813D1B9}\InprocServer32\ThreadingModel = "apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{010F8EC1-FB4C-428C-A078-8E9B4813D1B9}\InprocServer32	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3296 wrote to memory of 2756	3296	regsvr32.exe	84
PID 3296 wrote to memory of 2756	3296	regsvr32.exe	84
PID 3296 wrote to memory of 2756	3296	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\8b2bcbd9ec5b03151d6d29c3c382c94c_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3296
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\8b2bcbd9ec5b03151d6d29c3c382c94c_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2756

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

memory/2756-0-0x0000000000400000-0x0000000000444000-memory.dmp

Download

memory/2756-1-0x0000000000431000-0x0000000000432000-memory.dmp