3acd599b2e9edd981bc11533cb7ef7995ad0557cd0a4c28b05860cff3c09428f

Analysis

max time kernel
139s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12-08-2024 02:46

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General

Target

8d02527381b84c858b37143abab20ae0_JaffaCakes118.dll
Size

86KB
MD5

8d02527381b84c858b37143abab20ae0
SHA1

4c1c8a47fdb842893d325ab099cefe2e05a361d3
SHA256

3acd599b2e9edd981bc11533cb7ef7995ad0557cd0a4c28b05860cff3c09428f
SHA512

f8209547c1caf5ef2f70361deed16f3ba7c4299b6e98948b88bb9d185cfcd7be929488dbe86a104b282ff28f57e0f9578f5b12a68c984f971d58d3c8773ac7aa
SSDEEP

1536:CYvynn+A2V0JaHkRhD7FU9Ba1wgyymjCfFFiYC0BY5Ccdtkew7iK4O:fv4+ALJYO7FSg1wgyNWM0Bw674

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/3840-0-0x0000000000400000-0x000000000043C000-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\{3E65A9A0-8640-444A-813C-8E6BDDAF77CB}	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\{3E65A9A0-8640-444A-813C-8E6BDDAF77CB}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3E65A9A0-8640-444A-813C-8E6BDDAF77CB}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8d02527381b84c858b37143abab20ae0_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3E65A9A0-8640-444A-813C-8E6BDDAF77CB}\InprocServer32\ThreadingModel = "apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3E65A9A0-8640-444A-813C-8E6BDDAF77CB}\InprocServer32	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2116 wrote to memory of 3840	2116	regsvr32.exe	84
PID 2116 wrote to memory of 3840	2116	regsvr32.exe	84
PID 2116 wrote to memory of 3840	2116	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\8d02527381b84c858b37143abab20ae0_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2116
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\8d02527381b84c858b37143abab20ae0_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:3840

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/3840-0-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

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