5a6b6ac9e464c4aa636974812118afbf645cf26ae7eb7b471d3f7a9d27274ae3

Analysis

max time kernel
135s
max time network
142s
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 06:42

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General

Target

JaffaCakes118_6ad957f406dc66c177305ddb8e4835d4.dll
Size

204KB
MD5

6ad957f406dc66c177305ddb8e4835d4
SHA1

2bb10f3d57453f25d04a19b3144a6222b0e87b67
SHA256

5a6b6ac9e464c4aa636974812118afbf645cf26ae7eb7b471d3f7a9d27274ae3
SHA512

1439071c27e0ad078a91e2170b170a2613c83098e7583dce2221261fe6e8d0a964493b41753ec277eecc9a16e34ac92ac95d410c638241842cb406571ca74fc1
SSDEEP

6144:2n8FEvxNiItcpYQxcvJU3+aCCJUf7mfv9u:PF2iEX+cvsrCC2f7mnk

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2148	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/0x000d000000023b33-5.dat	upx
behavioral2/memory/2148-7-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral2/memory/2148-9-0x0000000000400000-0x000000000046C000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2456	2148	WerFault.exe	85

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 4620 wrote to memory of 4088	4620	rundll32.exe	84
PID 4620 wrote to memory of 4088	4620	rundll32.exe	84
PID 4620 wrote to memory of 4088	4620	rundll32.exe	84
PID 4088 wrote to memory of 2148	4088	rundll32.exe	85
PID 4088 wrote to memory of 2148	4088	rundll32.exe	85
PID 4088 wrote to memory of 2148	4088	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ad957f406dc66c177305ddb8e4835d4.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4620
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ad957f406dc66c177305ddb8e4835d4.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4088
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2148
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2148 -s 264
      4⤵
      Program crash
      PID:2456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2148 -ip 2148
1⤵
PID:1924

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
129KB

MD5
d8c8aec24f832e3beaeb3865b17dcb95

SHA1
eb791e2c4cc783c60460f8b3628e034107659367

SHA256
1284cfe422573f4a7495bd98ebe0b81c27186ff292059e4d8aff07e917218859

SHA512
64bf0f321e4a4a3e83611374472eef63f167827e8ca26c27c1cb8ab337dd2921eca1a3b08dd8b0ea22027c5a1258c3bee041a0009f76f40ab372916f88b82c47

Download Submit
memory/2148-8-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/2148-7-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2148-9-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/4088-1-0x0000000002B30000-0x0000000002B63000-memory.dmp

Filesize
204KB

Download
memory/4088-2-0x0000000002B30000-0x0000000002B63000-memory.dmp

Filesize
204KB

Download