07bca7bd4f05c833f6a0dbf66cd2ab07f64adfcf810e6c5675089336fec011c3

Analysis

max time kernel
93s
max time network
145s
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 00:51

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General

Target

JaffaCakes118_693ee3cf7c8ba77980af66f8b023f8b0.dll
Size

156KB
MD5

693ee3cf7c8ba77980af66f8b023f8b0
SHA1

059f3dd5a6aa38612cade0f2c5b5cab54d1c53ec
SHA256

07bca7bd4f05c833f6a0dbf66cd2ab07f64adfcf810e6c5675089336fec011c3
SHA512

bba7efeb073abf17487f17512e6f5a71c02bb2d581540b905440595defe559737feaf6bee7b8ab6009057e05788ec6c4fe35e8882b294fb902e44b05ca56d489
SSDEEP

3072:g7x/gEUOOQxB1aNGmERuZSUhrafmSt5tL+gO6f7OKiUXlvKJZXvf/5USm:g5gROOQxBM0HUqmSt5tL+YqK5KJ1n/yJ

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
5112	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/0x0009000000023c60-3.dat	upx
behavioral2/memory/5112-4-0x0000000000400000-0x000000000045D000-memory.dmp	upx
behavioral2/memory/5112-7-0x0000000000400000-0x000000000045D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2304	5112	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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32mgr.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5024	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4316 wrote to memory of 5024	4316	rundll32.exe	83
PID 4316 wrote to memory of 5024	4316	rundll32.exe	83
PID 4316 wrote to memory of 5024	4316	rundll32.exe	83
PID 5024 wrote to memory of 5112	5024	rundll32.exe	84
PID 5024 wrote to memory of 5112	5024	rundll32.exe	84
PID 5024 wrote to memory of 5112	5024	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_693ee3cf7c8ba77980af66f8b023f8b0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4316
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_693ee3cf7c8ba77980af66f8b023f8b0.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5024
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5112
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5112 -s 264
      4⤵
      Program crash
      PID:2304

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5112 -ip 5112
1⤵
PID:4736

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
132KB

MD5
ebc35bf5774a4b75cd45638cecb74db3

SHA1
3a4858d3ab2074b6d2d5a999a7443c683af2417b

SHA256
52c970b575040b26c6c357f1aa64288544578a229b9be70acd0f860f55cca346

SHA512
365feb8dccdbf66ff9dd5e1aa08126b0c6da0cb1fe6cf7a986cbb6c66928f7c3282492c11946598652e18fa695f7ea7021cd3f5943a20650e9efe829a0891ca1

Download Submit
memory/5024-0-0x0000000074A00000-0x0000000074A2B000-memory.dmp

Filesize
172KB

Download
memory/5112-4-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/5112-6-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download
memory/5112-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download