ca1906c0038d784d0ae122797eb5a2c359aeabd142efa34f709c229bec4cd3cc

Analysis

max time kernel
146s
max time network
163s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
31/10/2022, 05:03

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General

Target

L2Server/L2Server.exe
Size

12.6MB
MD5

8235a379be7a063b9d90a38e276cbb30
SHA1

b6174fc0b2de1aecb09c12fc73e9369e5a5b95c5
SHA256

203e3300d1e76dbc45e0c0e1b5d0e0388e1143924333398954016c6003b45511
SHA512

3f30fb08ee92a73a3a19dc22c3440b2afef2a5babc735dfdea04021180440b5baaf444d975c9bae502c73fe823ce9d0f419dd71ffdc9960f655071130e3152c3
SSDEEP

98304:FayXbXfSoVXB8H7cyxOhtwTN2EBLBYFZpECfzIKOQG8GHk91bBqnA4WgX32daeH3:FlXbPDVXB27cXtwTN2EFBIFzIRQLmeH3

Score

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	L2Server.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4780 wrote to memory of 4656	4780	L2Server.exe	82
PID 4780 wrote to memory of 4656	4780	L2Server.exe	82
PID 4780 wrote to memory of 876	4780	L2Server.exe	84
PID 4780 wrote to memory of 876	4780	L2Server.exe	84
PID 4780 wrote to memory of 3408	4780	L2Server.exe	86
PID 4780 wrote to memory of 3408	4780	L2Server.exe	86

C:\Users\Admin\AppData\Local\Temp\L2Server\L2Server.exe
"C:\Users\Admin\AppData\Local\Temp\L2Server\L2Server.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4780
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir bak
  2⤵
  PID:4656
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move LinError.txt.*.bak bak\
  2⤵
  PID:876
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move minidump_*.dmp bak\
  2⤵
  PID:3408

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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