21be0a068d7d1b57578bfb2ed850b3f3b1cfe4a4c47981ead95abdb8c20278fe

Analysis

max time kernel
120s
max time network
126s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
19-08-2024 13:52

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General

Target

$PLUGINSDIR/WinShell.dll
Size

3KB
MD5

1cc7c37b7e0c8cd8bf04b6cc283e1e56
SHA1

0b9519763be6625bd5abce175dcc59c96d100d4c
SHA256

9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6
SHA512

7acf7f8e68aa6066b59ca9f2ae2e67997e6b347bc08eb788d2a119b3295c844b5b9606757168e8d2fbd61c2cda367bf80e9e48c9a52c28d5a7a00464bfd2048f

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2912 2064 WerFault.exe rundll32.exe
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

pid	pid_target	process	target process
2912	2064	WerFault.exe	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	target process
PID 2076 wrote to memory of 2064	2076	rundll32.exe	rundll32.exe
PID 2076 wrote to memory of 2064	2076	rundll32.exe	rundll32.exe
PID 2076 wrote to memory of 2064	2076	rundll32.exe	rundll32.exe
PID 2076 wrote to memory of 2064	2076	rundll32.exe	rundll32.exe
PID 2076 wrote to memory of 2064	2076	rundll32.exe	rundll32.exe
PID 2076 wrote to memory of 2064	2076	rundll32.exe	rundll32.exe
PID 2076 wrote to memory of 2064	2076	rundll32.exe	rundll32.exe
PID 2064 wrote to memory of 2912	2064	rundll32.exe	WerFault.exe
PID 2064 wrote to memory of 2912	2064	rundll32.exe	WerFault.exe
PID 2064 wrote to memory of 2912	2064	rundll32.exe	WerFault.exe
PID 2064 wrote to memory of 2912	2064	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\WinShell.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2076

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\WinShell.dll,#1
2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2064 -s 220
3⤵
- Program crash
PID:2912

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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