fd4335687473a74e5e432753f5c1757f8ce774afcf8b5e804ffbd9b2844a520f

Analysis

max time kernel
38s
max time network
51s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
06/03/2023, 15:12

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General

Target

INSTRUCT.lnk
Size

1KB
MD5

38b05aa4b5ba651ba95f7173c5145270
SHA1

01424a07b968b5659c58c6d11f32f01475921a05
SHA256

dffaefaabbcf6da029f927e67e38c0d1e6271bf998040cfd6d8c50a4eff639df
SHA512

6a04622aff5ba794d15d8516a76469ad2b81c05fa690b9c21389dcdc1ebf285d19a58ca1451c370234316f740ee4d602c188236fb74d0255ae89025d03c5f455

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-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation	cmd.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 2 IoCs

description	pid	Process	procid_target
PID 1288 wrote to memory of 4268	1288	cmd.exe	88
PID 1288 wrote to memory of 4268	1288	cmd.exe	88

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\INSTRUCT.lnk
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1288
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" BugSplatRc64.dll,InitiateDs
  2⤵
  PID:4268

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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