a3d060addde81e53c12ead210925c53cfb78cb92958260bf4454727940adf0d8

Analysis

max time kernel
104s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
23/03/2025, 14:47

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General

Target

JaffaCakes118_8751ffb8cf222ab81161df6bfc08c2f0.dll
Size

204KB
MD5

8751ffb8cf222ab81161df6bfc08c2f0
SHA1

84d324815968276c2e3c07fa90070c19fe8a0b34
SHA256

a3d060addde81e53c12ead210925c53cfb78cb92958260bf4454727940adf0d8
SHA512

a69eb180d51d440a5b2e8786c8b8ae9412769f58763e97eac172873af0adc77523405123d870f4e18202f1bcb8c20544b46b74e915ffb77a597298d044a5ecb3
SSDEEP

3072:uOBOLWXivHYMzv2HvP5YeBTEEP2831Vr/rF8QOSta7We559tZ3hsJNhQeCUChSxy:uOp8HpzdQOStKVbxFM4qiu7OKoa32

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1880	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x00050000000229c8-3.dat	upx
behavioral2/memory/1880-4-0x0000000000400000-0x000000000045D000-memory.dmp	upx
behavioral2/memory/1880-7-0x0000000000400000-0x000000000045D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1604	1880	WerFault.exe	87

System Location Discovery: System Language Discovery 1 TTPs 2 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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32mgr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3472 wrote to memory of 3884	3472	rundll32.exe	86
PID 3472 wrote to memory of 3884	3472	rundll32.exe	86
PID 3472 wrote to memory of 3884	3472	rundll32.exe	86
PID 3884 wrote to memory of 1880	3884	rundll32.exe	87
PID 3884 wrote to memory of 1880	3884	rundll32.exe	87
PID 3884 wrote to memory of 1880	3884	rundll32.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8751ffb8cf222ab81161df6bfc08c2f0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3472
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8751ffb8cf222ab81161df6bfc08c2f0.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3884
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1880
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1880 -s 272
      4⤵
      Program crash
      PID:1604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1880 -ip 1880
1⤵
PID:5072

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

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Downloads

C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
105KB

MD5
4ac46f9b1cf2510e27caaf559aba2d87

SHA1
0aecafb73e3554ece3d8315197ba3db63cb54c17

SHA256
461ded20219270124b6d2f636f7b07b2847c35355517657f01a19e472e270b63

SHA512
6b8bd6b72f9a78e900e852466dcf60df4ac7e43a041fc138538fa2368ab4763bf04e45a2aff81d3a718919c18bcd2ef46c7bdb7992fdb366ca569791f4174a0a

Download Submit
memory/1880-4-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1880-6-0x00000000006B0000-0x00000000006B1000-memory.dmp

Filesize
4KB

Download
memory/1880-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3884-0-0x0000000007000000-0x0000000007035000-memory.dmp

Filesize
212KB

Download