8f852dc24d3767e23bcda5f41836f2a3831d320913f04b5c04065130a3070e45

Analysis

max time kernel
148s
max time network
150s
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, 14:39

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General

Target

JaffaCakes118_6d5a226269f9f1b37e29a33af95e7360.dll
Size

576KB
MD5

6d5a226269f9f1b37e29a33af95e7360
SHA1

c2d0822260e1d3a99d78066280f54f5ec10538bb
SHA256

8f852dc24d3767e23bcda5f41836f2a3831d320913f04b5c04065130a3070e45
SHA512

53e87eb4cb02eb949bbc678ad9d1f366e01667fd9a8c7ee948e2ae82c28adad3dd88f48a414769e067bad062dffd1beca1174f3a1e51b76a246ed72cefed8456
SSDEEP

6144:1ZLT3A5Dp0HvFIc5vBlcQGSgS62iiiiiSySYSGS+8c8c8AAANA/AA0fMGrgPhclc:1ZL7A5l0711g8onrOcWAqVvWhi1VrgvA

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2472	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/0x000d000000023ba1-3.dat	upx
behavioral2/memory/2472-5-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/2472-7-0x0000000000400000-0x0000000000456000-memory.dmp	upx

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2020	4060	WerFault.exe	83
2276	2472	WerFault.exe	84

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	rundll32mgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 4060	2004	rundll32.exe	83
PID 2004 wrote to memory of 4060	2004	rundll32.exe	83
PID 2004 wrote to memory of 4060	2004	rundll32.exe	83
PID 4060 wrote to memory of 2472	4060	rundll32.exe	84
PID 4060 wrote to memory of 2472	4060	rundll32.exe	84
PID 4060 wrote to memory of 2472	4060	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6d5a226269f9f1b37e29a33af95e7360.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6d5a226269f9f1b37e29a33af95e7360.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4060
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2472
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2472 -s 264
      4⤵
      Program crash
      PID:2276
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4060 -s 612
    3⤵
    - Program crash
    PID:2020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2472 -ip 2472
1⤵
PID:3812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4060 -ip 4060
1⤵
PID:4756

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
105KB

MD5
27761550031391c56a3a59d3cb7229a5

SHA1
643e456a5fb02a820e79e33fc66e8496f15e5955

SHA256
b6b449ecd550692a3d8d5424e00885155e898d5cbbde98543a5b7b877073daab

SHA512
2aa9607f71e4cb99ab4ccabe33a5f192117b733306cd8d1f4f3054077572e522bc71e1eae679877b5554d0bc3c1281fd5bcf822a2da5da291e6630f65470d0d6

Download Submit
memory/2472-6-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/2472-5-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2472-7-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4060-0-0x0000000010000000-0x0000000010091000-memory.dmp

Filesize
580KB

Download
memory/4060-8-0x0000000010000000-0x0000000010091000-memory.dmp

Filesize
580KB

Download