5341b3921b75549adbe59365517c30bd045e63162728d9ba48f79832fea1bea0

Analysis

max time kernel
142s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
24/01/2024, 17:21

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General

Target
$PLUGINSDIR/OCSetupHlp.dll
Size 438KB
Sample240124-vxb3lsecfl
SHA256 abb8fbe643a37ba41c0e753a5c35dd38ed74f38f21112a9c57a6206fcb6cf66e
MD5 9e1fe7b0eb75814578f900ae56995e92
SHA1 f5100e25ca3953862983fbc7a711e21df2e16b9f
SHA512 88bb1586fe61c64b39f28a315bcd22b03a0b981c71a7dcf58d5d5a6288a3c1dd29b14f2512b01fbdc6b2348e71cb5e16189978b74d32afeb78411942afa44c9c
SSDEEP 6144:Nyyy1K4KiB8K5G8xG+rdXpTvtoEk/xSj7oJEsfcFZP4A5lT65NCrcvLmffJx:N7sNxG+rdXpTtPkJS0E4A5J6NGff
MD5 SHA1 SHA512 SSDEEP

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-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	rundll32.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 908 wrote to memory of 4048	908	rundll32.exe	86
PID 908 wrote to memory of 4048	908	rundll32.exe	86
PID 908 wrote to memory of 4048	908	rundll32.exe	86
PID 4048 wrote to memory of 2768	4048	rundll32.exe	89
PID 4048 wrote to memory of 2768	4048	rundll32.exe	89
PID 4048 wrote to memory of 2768	4048	rundll32.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\OCSetupHlp.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:908
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\OCSetupHlp.dll,#1
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:4048
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\Temp\$PLUGI~1\OCSETU~1.DLL,_MgrExec@16
    3⤵
    PID:2768

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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