32a4c8fffd879564dff07284163298bc1cff13e4244945b0da9afee8cf13a122

Analysis

max time kernel
93s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-01-2025 10:21

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General

Target

JaffaCakes118_34a7a22bad034098a7d2c135f0e043e8.dll
Size

393KB
MD5

34a7a22bad034098a7d2c135f0e043e8
SHA1

69484aa696a0b71a2b665eb3db98af5cf085aed3
SHA256

32a4c8fffd879564dff07284163298bc1cff13e4244945b0da9afee8cf13a122
SHA512

1caa4711fa989159263466e5037a4c538fcfa11a791ef2218b0d27a15e550370779825d9d81e466384947e883467a398aa57a908c8801c3964b56b4daf43084f
SSDEEP

6144:0Vdb5rXZ1KaN1C2T9LRw8nTnp1jQoLCRPGSckIuEvlxNe/tEp2BlW00gTNHv/zEk:K5rHN1C2he+p1pc0qFv/zr1Em

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3732	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3504-0-0x0000000010000000-0x000000001017C000-memory.dmp	upx
behavioral2/files/0x000a000000023bff-3.dat	upx
behavioral2/memory/3732-5-0x0000000000400000-0x000000000045B000-memory.dmp	upx
behavioral2/memory/3504-7-0x0000000010000000-0x000000001017C000-memory.dmp	upx
behavioral2/memory/3732-9-0x0000000000400000-0x000000000045B000-memory.dmp	upx

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4584	3504	WerFault.exe	82
4360	3732	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 4972 wrote to memory of 3504	4972	rundll32.exe	82
PID 4972 wrote to memory of 3504	4972	rundll32.exe	82
PID 4972 wrote to memory of 3504	4972	rundll32.exe	82
PID 3504 wrote to memory of 3732	3504	rundll32.exe	83
PID 3504 wrote to memory of 3732	3504	rundll32.exe	83
PID 3504 wrote to memory of 3732	3504	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_34a7a22bad034098a7d2c135f0e043e8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4972
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_34a7a22bad034098a7d2c135f0e043e8.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3504
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3732
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3732 -s 264
      4⤵
      Program crash
      PID:4360
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3504 -s 680
    3⤵
    - Program crash
    PID:4584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3504 -ip 3504
1⤵
PID:1744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3732 -ip 3732
1⤵
PID:1956

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/3504-0-0x0000000010000000-0x000000001017C000-memory.dmp

Filesize
1.5MB

Download
memory/3504-7-0x0000000010000000-0x000000001017C000-memory.dmp

Filesize
1.5MB

Download
memory/3732-6-0x0000000001F20000-0x0000000001F21000-memory.dmp

Filesize
4KB

Download
memory/3732-5-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/3732-9-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download