5fa0d7126fa34426ab0994c7bd3627f72d6798306bf91f806493ffa8abddce24

Analysis

max time kernel
141s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
23/07/2024, 01:06

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General

Target

658a23c3aa201c04c8de874dc0dc865f_JaffaCakes118.dll
Size

400KB
MD5

658a23c3aa201c04c8de874dc0dc865f
SHA1

c110dda55b0ff4c5f5ccb364792d95aa6e05d613
SHA256

5fa0d7126fa34426ab0994c7bd3627f72d6798306bf91f806493ffa8abddce24
SHA512

b180a02a4c7302e491916c7e4137a11edd6ea19297451415104f8c0bb1b7016e2dbcf722652a6f8b7084a0d38b4f310a911fe2efbbff205ae5347f82810da837
SSDEEP

12288:LC3aGYUQ6gUSwcNA3OuMVqN6DZh/wi0NFoOt:LC3/Y8SSV6Dn/z0MOt

Score

7^/10

adware stealer upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3764-0-0x0000000001EE0000-0x00000000020BA000-memory.dmp	upx
behavioral2/memory/3764-1-0x0000000001EE0000-0x00000000020BA000-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\{FCADDC14-BD46-408A-9842-CDBE1C6D37EB}	regsvr32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCADDC14-BD46-408A-9842-CDBE1C6D37EB}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCADDC14-BD46-408A-9842-CDBE1C6D37EB}\	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCADDC14-BD46-408A-9842-CDBE1C6D37EB}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCADDC14-BD46-408A-9842-CDBE1C6D37EB}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\658a23c3aa201c04c8de874dc0dc865f_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCADDC14-BD46-408A-9842-CDBE1C6D37EB}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4256 wrote to memory of 3764	4256	regsvr32.exe	84
PID 4256 wrote to memory of 3764	4256	regsvr32.exe	84
PID 4256 wrote to memory of 3764	4256	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\658a23c3aa201c04c8de874dc0dc865f_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4256
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\658a23c3aa201c04c8de874dc0dc865f_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:3764

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

Replay Monitor

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Downloads

memory/3764-0-0x0000000001EE0000-0x00000000020BA000-memory.dmp

Filesize
1.9MB

Download
memory/3764-1-0x0000000001EE0000-0x00000000020BA000-memory.dmp

Filesize
1.9MB

Download
memory/3764-2-0x0000000001EE1000-0x0000000002051000-memory.dmp

Filesize
1.4MB

Download