db1420a2ff6a29f63ed3da12087155231cce82b4550e20cd31fb287e44832514

Analysis

max time kernel
149s
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
01/01/2025, 15:26

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General

Target

JaffaCakes118_5a515ccdbfb76acf91839684585abf60.dll
Size

137KB
MD5

5a515ccdbfb76acf91839684585abf60
SHA1

16a18160a614bdc5a7796c99853b127cb362bc2d
SHA256

db1420a2ff6a29f63ed3da12087155231cce82b4550e20cd31fb287e44832514
SHA512

e83e06ed0d6c1fcf0590d8e595f41d754e2cc44133401efea07683f8f8195121296a896ec68aa30372087f9e2196fc30eca9dd51970f9cbcb5e5ff6e00b1d82b
SSDEEP

3072:/NqgwmI488TRAfVhBQ7P+0Us4Q+LQI1H2UJ2mro/Y:svmlAfVhy75ZlIx2Svo/Y

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2032	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/0x000a000000023c1f-3.dat	upx
behavioral2/memory/2032-4-0x0000000000400000-0x000000000045B000-memory.dmp	upx
behavioral2/memory/2032-8-0x0000000000400000-0x000000000045B000-memory.dmp	upx

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3120	4644	WerFault.exe	83
212	2032	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 WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 4644	2180	rundll32.exe	83
PID 2180 wrote to memory of 4644	2180	rundll32.exe	83
PID 2180 wrote to memory of 4644	2180	rundll32.exe	83
PID 4644 wrote to memory of 2032	4644	rundll32.exe	84
PID 4644 wrote to memory of 2032	4644	rundll32.exe	84
PID 4644 wrote to memory of 2032	4644	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5a515ccdbfb76acf91839684585abf60.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5a515ccdbfb76acf91839684585abf60.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4644
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2032
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2032 -s 264
      4⤵
      Program crash
      PID:212
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 632
    3⤵
    - Program crash
    PID:3120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2032 -ip 2032
1⤵
PID:4580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4644 -ip 4644
1⤵
PID:4564

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
106KB

MD5
db92102c142a97620d0f02b3321d235b

SHA1
84adf0da0cfa131b61a23cf26719b5d0c75702a9

SHA256
12dc8f962b54cbf925146db55709c9ad8465e392aede3a5095f74e7ca6ade2a5

SHA512
04bbb8ca5e5e63e85da4c4a9de8f46352cb9437005c0cae014da1d61c58916584a284fb7fba21b06f963de440362e150b6f2ef5d69143fd6a187c0712bf28d65

Download Submit
memory/2032-4-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2032-6-0x0000000002060000-0x0000000002061000-memory.dmp

Filesize
4KB

Download
memory/2032-8-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/4644-0-0x0000000040FC0000-0x0000000040FE7000-memory.dmp

Filesize
156KB

Download
memory/4644-7-0x0000000040FC0000-0x0000000040FE7000-memory.dmp

Filesize
156KB

Download