58af4051481e13f444bdcba0f9162686afa2a28df81f309d99d1406dbc5449ad

Analysis

max time kernel
130s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/08/2024, 13:34

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General

Target

c0db15a9014a813adadb2605cfa57a44_JaffaCakes118.dll
Size

364KB
MD5

c0db15a9014a813adadb2605cfa57a44
SHA1

c3cb061fda1b12078648cc72e265453e1ac7d779
SHA256

58af4051481e13f444bdcba0f9162686afa2a28df81f309d99d1406dbc5449ad
SHA512

945bd31bba98ef12a9c6ddfc856f923f5f169fe4010fd5af790b1165bb12e76ccee49c3fb1db52e950639c90c6736f9b7bfbd4f2f5305255b6fa93ddce5e77d8
SSDEEP

6144:S0GmlGZIdBKjQTG6xWFrTj0zIRq8GQDXO2oDXqHsEFFAig:0GB7GqWQt2oDylAig

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4392	rundll32mgr.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0009000000023479-4.dat	upx
behavioral2/memory/4392-5-0x0000000000400000-0x000000000045D000-memory.dmp	upx
behavioral2/memory/4392-8-0x0000000000400000-0x000000000045D000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
728	1688	WerFault.exe	83
1564	4392	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 4736 wrote to memory of 1688	4736	rundll32.exe	83
PID 4736 wrote to memory of 1688	4736	rundll32.exe	83
PID 4736 wrote to memory of 1688	4736	rundll32.exe	83
PID 1688 wrote to memory of 4392	1688	rundll32.exe	84
PID 1688 wrote to memory of 4392	1688	rundll32.exe	84
PID 1688 wrote to memory of 4392	1688	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c0db15a9014a813adadb2605cfa57a44_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4736
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\c0db15a9014a813adadb2605cfa57a44_JaffaCakes118.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1688
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4392
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4392 -s 264
      4⤵
      Program crash
      PID:1564
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1688 -s 632
    3⤵
    - Program crash
    PID:728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1688 -ip 1688
1⤵
PID:3712

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4392 -ip 4392
1⤵
PID:3600

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
03458f75016342531765a7def629c6fe

SHA1
7e14e6534123ce7e51aafa2ccda4688a4524eeaf

SHA256
860fdd78a1ca6dd68db4d64b918ef1fea1734a0650d4aad8c159eaf1e41ba98f

SHA512
2db0af32ab82875e50d630798ee81b8a6fef9d1fccd6953fb891e6fc07fc048b30e65fd934ad8f6bd1531d7dcb73129043a219e28f82f55497a84b8b5e9ec198

Download Submit
memory/1688-0-0x0000000010000000-0x000000001005E000-memory.dmp

Filesize
376KB

Download
memory/1688-9-0x0000000010000000-0x000000001005E000-memory.dmp

Filesize
376KB

Download
memory/4392-5-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4392-6-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/4392-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download