cfda592ac1958ac76c35369bd9e01bd3902cc0127ce03c97eb73c1ae4b966564

Analysis

max time kernel
92s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27/09/2024, 09:47

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

fa2e5eec14233d5990a75a46f62d7052_JaffaCakes118.dll
Size

272KB
MD5

fa2e5eec14233d5990a75a46f62d7052
SHA1

938692401180d0858ab42498a2017da4589d21b8
SHA256

cfda592ac1958ac76c35369bd9e01bd3902cc0127ce03c97eb73c1ae4b966564
SHA512

b4039864c110cd4011a4fd8df8778dd5bfa125762950dde169009aac12ddc27fb48dba8531af811045d041cc27eb32a81843b2aa80fedf12be0f1fd9e6e579a4
SSDEEP

6144:CrkYHjIWeWcd71bynznSB3ZOaI4SCxW0Dg:PYHjIWPo71bISqa2SDg

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
892	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/0x00090000000233b9-3.dat	upx
behavioral2/memory/892-4-0x0000000000400000-0x000000000045B000-memory.dmp	upx
behavioral2/memory/892-7-0x0000000000400000-0x000000000045B000-memory.dmp	upx

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2612	4596	WerFault.exe	82
3824	892	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 1052 wrote to memory of 4596	1052	rundll32.exe	82
PID 1052 wrote to memory of 4596	1052	rundll32.exe	82
PID 1052 wrote to memory of 4596	1052	rundll32.exe	82
PID 4596 wrote to memory of 892	4596	rundll32.exe	83
PID 4596 wrote to memory of 892	4596	rundll32.exe	83
PID 4596 wrote to memory of 892	4596	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fa2e5eec14233d5990a75a46f62d7052_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1052
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\fa2e5eec14233d5990a75a46f62d7052_JaffaCakes118.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4596
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:892
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 892 -s 256
      4⤵
      Program crash
      PID:3824
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4596 -s 608
    3⤵
    - Program crash
    PID:2612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 892 -ip 892
1⤵
PID:1920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4596 -ip 4596
1⤵
PID:404

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

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
105KB

MD5
1713dcea0892955ae4ad238bf4b9a34d

SHA1
172c10720153e717402654f97ad56516f43705bf

SHA256
e4cbc03a8bea10728e756b7187435b3675af2d45ace12e6b6641e44b25d54b23

SHA512
e0a0a1ec9e9380bcc1692016dcadb6b794ef13e3a49b9709799c8b281401cd0faa0b63b0aa0fa750820cdec674f7c6e02e259e66cf843975fcbd49e9c1be021c

Download Submit
memory/892-4-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/892-6-0x00000000007C0000-0x00000000007C1000-memory.dmp

Filesize
4KB

Download
memory/892-7-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/4596-1-0x0000000074F10000-0x0000000074F59000-memory.dmp

Filesize
292KB

Download
memory/4596-8-0x0000000074F10000-0x0000000074F59000-memory.dmp

Filesize
292KB

Download