faebe6c260f6f0aeb15d3ccb7804f403da69b569991a20beb0606938c005bd72

Analysis

max time kernel
94s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03/01/2025, 15:50

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General

Target

JaffaCakes118_6dbb8547508e47dd3a5426d4edcf050e.dll
Size

200KB
MD5

6dbb8547508e47dd3a5426d4edcf050e
SHA1

29e32faf105f9c442e5c3f1b5de38d2e4dfab8c8
SHA256

faebe6c260f6f0aeb15d3ccb7804f403da69b569991a20beb0606938c005bd72
SHA512

1ed622c0047b582c8169a942df953331b655b42f1b46d0ed7f39d8928c31c6f96b00210d3efa78bcd67802a36ea8173e667ac10d58c208b9a6047a82050b11e2
SSDEEP

3072:x4vRpRkTcZ7fcxdl5CT1lW+I0UIfMiYjJQtvbpPrLtoxCvPesuPmFOl+5UIBshF:xQlWcMg9rp2lzKk

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3884	rundll32Srv.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32Srv.exe	rundll32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023b9b-3.dat	upx
behavioral2/memory/3884-5-0x0000000000400000-0x0000000000434000-memory.dmp	upx
behavioral2/memory/3884-6-0x0000000000400000-0x0000000000434000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
116	3884	WerFault.exe	83

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	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4508 wrote to memory of 1864	4508	rundll32.exe	82
PID 4508 wrote to memory of 1864	4508	rundll32.exe	82
PID 4508 wrote to memory of 1864	4508	rundll32.exe	82
PID 1864 wrote to memory of 3884	1864	rundll32.exe	83
PID 1864 wrote to memory of 3884	1864	rundll32.exe	83
PID 1864 wrote to memory of 3884	1864	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6dbb8547508e47dd3a5426d4edcf050e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4508
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6dbb8547508e47dd3a5426d4edcf050e.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1864
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    PID:3884
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3884 -s 260
      4⤵
      Program crash
      PID:116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3884 -ip 3884
1⤵
PID:544

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\rundll32Srv.exe

Filesize
42KB

MD5
202a068e9e52853d7ed7887ec7dfbe52

SHA1
ce1e72c19689f912f48a345cfcc84d79b9a750eb

SHA256
95cc192ab86094ea9d54ae9d8f320291907d0297edd147b25395265a39cf1356

SHA512
7a3ea8730111068c92b2ef642bd0a3c0ab26ff31b41e743edd96223d7f169e2d8e0c37870cda8f6885e2b21e784edd11f85afbf5e8b45eb4aefdfb2380f0f1e6

Download Submit
memory/1864-0-0x0000000074E90000-0x0000000074EC4000-memory.dmp

Filesize
208KB

Download
memory/3884-5-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3884-6-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download