669efd43aef27d963a06517e36cd97b1aa11861f0498241043e1b47809a225d2

Analysis

max time kernel
136s
max time network
107s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
26-07-2024 11:02

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General

Target

73c56b67cde9fc286c21a9db4e985a64_JaffaCakes118.dll
Size

104KB
MD5

73c56b67cde9fc286c21a9db4e985a64
SHA1

4d362769c564ebb5f4e9097c49e9f71cb56b3f80
SHA256

669efd43aef27d963a06517e36cd97b1aa11861f0498241043e1b47809a225d2
SHA512

c6d1a9b14cc17036486f8dadac2786618e414370f1114ef9253f3fd35e4834dd192f88fea8da0e05dc55b0762f6f0445095f14593e2f4743eca8b33590793f43
SSDEEP

3072:jLCudzzegDgxXee5/Umz2lG32ER47BVFOq0K10C8Rn:j/z45/Uk2M3Q7JOFKw

Score

10^/10

discovery persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\CustomComposition = "{064e4a31-6e66-44c4-9200-604daaa8c605}"	regsvr32.exe

Loads dropped DLL 2 IoCs

pid	Process
4776	regsvr32.exe
4776	regsvr32.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Common Files\Custom\CustomComposition.dll	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 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{064e4a31-6e66-44c4-9200-604daaa8c605}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{064e4a31-6e66-44c4-9200-604daaa8c605}\InprocServer32\ = "C:\\Program Files (x86)\\Common Files\\Custom\\CustomComposition.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{064e4a31-6e66-44c4-9200-604daaa8c605}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{064e4a31-6e66-44c4-9200-604daaa8c605}	regsvr32.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4776	regsvr32.exe
4776	regsvr32.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
4776	regsvr32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4776	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 4776	2400	regsvr32.exe	84
PID 2400 wrote to memory of 4776	2400	regsvr32.exe	84
PID 2400 wrote to memory of 4776	2400	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\73c56b67cde9fc286c21a9db4e985a64_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2400
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\73c56b67cde9fc286c21a9db4e985a64_JaffaCakes118.dll
  2⤵
  - Adds autorun key to be loaded by Explorer.exe on startup
  - Loads dropped DLL
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:4776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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

C:\Program Files (x86)\Common Files\Custom\CustomComposition.dll

Filesize
104KB

MD5
73c56b67cde9fc286c21a9db4e985a64

SHA1
4d362769c564ebb5f4e9097c49e9f71cb56b3f80

SHA256
669efd43aef27d963a06517e36cd97b1aa11861f0498241043e1b47809a225d2

SHA512
c6d1a9b14cc17036486f8dadac2786618e414370f1114ef9253f3fd35e4834dd192f88fea8da0e05dc55b0762f6f0445095f14593e2f4743eca8b33590793f43

Download Submit
memory/4776-5-0x0000000001180000-0x000000000119B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads