baa5fc6b3cb44a436594a190fc50e996a0e148390edb73234838029664f5f5d6

Analysis

max time kernel
148s
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
11/04/2024, 03:34

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General

Target
ec95208c8a2e996f4e612adb6b7f25b1_JaffaCakes118.dll
Size 7KB
Sample240411-d495jsbc24
SHA256 baa5fc6b3cb44a436594a190fc50e996a0e148390edb73234838029664f5f5d6
MD5 ec95208c8a2e996f4e612adb6b7f25b1
SHA1 43fec7c6a01bf2d515e812ebd6032902ebfb34d1
SHA512 1f632f14e402695c0b62a8a5eb7dca6b14203bbc04469b3addccb825dcc9281a4315a531a01cc7ed63de31c4a725c253f42ae55a171d0d0ddf39cd87b93a7451
SSDEEP 192:zFAG+OMbWu9xsfQJYLTcOADscqnoWixQJVeS:zFTOKunsVzHcqnoWix
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

adware 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/5032-0-0x0000000010000000-0x000000001000A000-memory.dmp	upx

Installs/modifies Browser Helper Object 2 TTPs 2 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\{7C109800-A5D5-438F-9640-18D17E168B88}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{7C109800-A5D5-438F-9640-18D17E168B88}\	regsvr32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{7C109800-A5D5-438F-9640-18D17E168B88}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7C109800-A5D5-438F-9640-18D17E168B88}\xxx = "xxx"	regsvr32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{7C109800-A5D5-438F-9640-18D17E168B88}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7C109800-A5D5-438F-9640-18D17E168B88}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ec95208c8a2e996f4e612adb6b7f25b1_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7C109800-A5D5-438F-9640-18D17E168B88}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
5032	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4572 wrote to memory of 5032	4572	regsvr32.exe	84
PID 4572 wrote to memory of 5032	4572	regsvr32.exe	84
PID 4572 wrote to memory of 5032	4572	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ec95208c8a2e996f4e612adb6b7f25b1_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4572
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\ec95208c8a2e996f4e612adb6b7f25b1_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  PID:5032

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

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Downloads

memory/5032-0-0x0000000010000000-0x000000001000A000-memory.dmp

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