3bfd2e503020274ee74f3d2015317fd549acc64eb760afa07c0bac637a3110dd

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-12-2024 12:08

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General

Target

External/Components/plc4.dll
Size

8KB
MD5

c73ec58b42e66443fafc03f3a84dcef9
SHA1

5e91f467fe853da2c437f887162bccc6fd9d9dbe
SHA256

2dc0171b83c406db6ec9389b438828246b282862d2b8bdf2f5b75aec932a69f7
SHA512

6318e831d8f38525e2e49b5a1661440cd8b1f3d2afc6813bb862c21d88d213c4675a8ec2a413b14fbdca896c63b65a7da6ec9595893b352ade8979e7e86a7fcf
SSDEEP

192:MxlIMjj3R+flm6R3ooPJXN+MV7Ms8QYJ:MHIMjjh+g6RR9+MV0QYJ

Score

5^/10

discovery upx

Malware Config

Signatures

UPX packed file 4 IoCs

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

upx

Processes:

resource	yara_rule
behavioral7/memory/2120-0-0x0000000060210000-0x000000006021A000-memory.dmp	upx
behavioral7/memory/2120-1-0x0000000060140000-0x000000006016D000-memory.dmp	upx
behavioral7/memory/2120-3-0x0000000060140000-0x000000006016D000-memory.dmp	upx
behavioral7/memory/2120-2-0x0000000060210000-0x000000006021A000-memory.dmp	upx

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2192	2120	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 1 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

Processes:

rundll32.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	Process	procid_target
PID 2908 wrote to memory of 2120	2908	rundll32.exe	30
PID 2908 wrote to memory of 2120	2908	rundll32.exe	30
PID 2908 wrote to memory of 2120	2908	rundll32.exe	30
PID 2908 wrote to memory of 2120	2908	rundll32.exe	30
PID 2908 wrote to memory of 2120	2908	rundll32.exe	30
PID 2908 wrote to memory of 2120	2908	rundll32.exe	30
PID 2908 wrote to memory of 2120	2908	rundll32.exe	30
PID 2120 wrote to memory of 2192	2120	rundll32.exe	31
PID 2120 wrote to memory of 2192	2120	rundll32.exe	31
PID 2120 wrote to memory of 2192	2120	rundll32.exe	31
PID 2120 wrote to memory of 2192	2120	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\External\Components\plc4.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2908
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\External\Components\plc4.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2120
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2120 -s 232
    3⤵
    - Program crash
    PID:2192

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

memory/2120-0-0x0000000060210000-0x000000006021A000-memory.dmp

Filesize
40KB

Download
memory/2120-1-0x0000000060140000-0x000000006016D000-memory.dmp

Filesize
180KB

Download
memory/2120-3-0x0000000060140000-0x000000006016D000-memory.dmp

Filesize
180KB

Download
memory/2120-2-0x0000000060210000-0x000000006021A000-memory.dmp

Filesize
40KB

Download