2832da6320014e9d439375b17aebeb7188ce3c7f82960d50c13c38f33fdbd933

Analysis

max time kernel
91s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2025 22:15

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General

Target

JaffaCakes118_60f3dfcdc854e97447a325fe4beaa609.dll
Size

724KB
MD5

60f3dfcdc854e97447a325fe4beaa609
SHA1

249ac6f89790573097046e5b0fee55bb0db7005e
SHA256

2832da6320014e9d439375b17aebeb7188ce3c7f82960d50c13c38f33fdbd933
SHA512

4069d05022be30812b26b2ece76639e3d823ca1b0de648236088869552b13ce04527e87465c33b95c1c07c11b23bd6bba3f50c0b44d19160a6f53232888b96a7
SSDEEP

12288:SE7NiOLg18+1/hv5VEipyz7mTWWa8afR2ftuD1xbmiU7+diwR19kN9G:SE3+F5GipwuWWpj+BNkXG

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4456	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/0x000c000000023b43-3.dat	upx
behavioral2/memory/4456-5-0x0000000000400000-0x000000000048F000-memory.dmp	upx
behavioral2/memory/4456-7-0x0000000000400000-0x000000000048F000-memory.dmp	upx

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1780	5040	WerFault.exe	82
4008	4456	WerFault.exe	83

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 1496 wrote to memory of 5040	1496	rundll32.exe	82
PID 1496 wrote to memory of 5040	1496	rundll32.exe	82
PID 1496 wrote to memory of 5040	1496	rundll32.exe	82
PID 5040 wrote to memory of 4456	5040	rundll32.exe	83
PID 5040 wrote to memory of 4456	5040	rundll32.exe	83
PID 5040 wrote to memory of 4456	5040	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_60f3dfcdc854e97447a325fe4beaa609.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1496
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_60f3dfcdc854e97447a325fe4beaa609.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5040
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4456
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4456 -s 264
      4⤵
      Program crash
      PID:4008
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5040 -s 608
    3⤵
    - Program crash
    PID:1780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 5040 -ip 5040
1⤵
PID:5064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4456 -ip 4456
1⤵
PID:1332

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\rundll32mgr.exe

Filesize
137KB

MD5
b82a555fd9de0d736a97cd10a7e100e1

SHA1
48e4c1531efdc1ad03d00305c374c79bfebe2c23

SHA256
e9a820755860e1c036b769a45dd9302984bcd759de69bcdbdd25515ddad867e8

SHA512
5cf8df4c6bfc2008cdc3a53887945ac23fd3fba348b6dc1ca44f421cfcdf1fafa83d0519a4c6fa37280f2eb3680fe982c2e918ae0abaec434f498d9656e28a63

Download Submit
memory/4456-5-0x0000000000400000-0x000000000048F000-memory.dmp

Filesize
572KB

Download
memory/4456-6-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/4456-7-0x0000000000400000-0x000000000048F000-memory.dmp

Filesize
572KB

Download
memory/5040-2-0x0000000074D60000-0x0000000074E1B000-memory.dmp

Filesize
748KB

Download
memory/5040-8-0x0000000074D60000-0x0000000074E1B000-memory.dmp

Filesize
748KB

Download