ecfa28ed9e60fc7fb588045862fb4bfa1a35cf36b32c32245442c780d2e513b9

Analysis

max time kernel
85s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
10-08-2024 03:48

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General

Target

84b176e069c1f94ddbaa9b5482fc2e89_JaffaCakes118.dll
Size

86KB
MD5

84b176e069c1f94ddbaa9b5482fc2e89
SHA1

9163a4ea92e8f2dc10907f593fc2e734f7c4a740
SHA256

ecfa28ed9e60fc7fb588045862fb4bfa1a35cf36b32c32245442c780d2e513b9
SHA512

7e8c2ee9fc532dde606a86ec568d5ad0b9b2ac455cb47e449180c00e6fe4624c7608c31aa03f448534181f070abe890fbd0553999d3eb5f5134edfff1c5d1ede
SSDEEP

1536:0Yvynn+A2VHeCG8ECOXgFZqnty4DC0QY4kItaN8SSyXFGp:hv4+AFTpXWZqty4DvTV4cFGp

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/1864-0-0x0000000000400000-0x000000000043C000-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\{5B4469D3-A52E-4A44-A533-D95953898266}	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\CLSID\{5B4469D3-A52E-4A44-A533-D95953898266}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5B4469D3-A52E-4A44-A533-D95953898266}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\84b176e069c1f94ddbaa9b5482fc2e89_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5B4469D3-A52E-4A44-A533-D95953898266}\InprocServer32\ThreadingModel = "apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5B4469D3-A52E-4A44-A533-D95953898266}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 764 wrote to memory of 1864	764	regsvr32.exe	84
PID 764 wrote to memory of 1864	764	regsvr32.exe	84
PID 764 wrote to memory of 1864	764	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\84b176e069c1f94ddbaa9b5482fc2e89_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:764
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\84b176e069c1f94ddbaa9b5482fc2e89_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:1864

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/1864-0-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

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