4b2f8f49063ee9b973867f0d1e72923dd72df98c2c0b607ce619bf71a9810eb6

Analysis

max time kernel
92s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
03/02/2024, 16:55

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General

Target
8cda651a2958930a5c233d841940c2d9.exe
Size 187KB
Sample240203-vfd6msdhh8
SHA256 4b2f8f49063ee9b973867f0d1e72923dd72df98c2c0b607ce619bf71a9810eb6
MD5 8cda651a2958930a5c233d841940c2d9
SHA1 af7949a15390e8e1f3251e8bf9344d3b4c0538fc
SHA512 9ce7913ecbbb9425740b7dd7e3dc883f8cdfac1cafdae765ec3f1bec84ddbb426523ea8e058ee7d897924cddb70c8f8b55f617eb276ff3432ad82f1b7302a317
SSDEEP 3072:Vd6RjrfJVUmYrfpR7yx4KS7PkSjRJ9f5c7G22OxGaXeGFdQT8VC1eZuVO8G93Px:7A3rUmSpdgUscF5c7G22OxGaXeGFdQTK
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-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	8cda651a2958930a5c233d841940c2d9.exe

Executes dropped EXE 1 IoCs

pid	Process
1944	fud.exe

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3336	8cda651a2958930a5c233d841940c2d9.exe
1944	fud.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3336 wrote to memory of 1944	3336	8cda651a2958930a5c233d841940c2d9.exe	85
PID 3336 wrote to memory of 1944	3336	8cda651a2958930a5c233d841940c2d9.exe	85
PID 3336 wrote to memory of 1944	3336	8cda651a2958930a5c233d841940c2d9.exe	85

C:\Users\Admin\AppData\Local\Temp\8cda651a2958930a5c233d841940c2d9.exe
"C:\Users\Admin\AppData\Local\Temp\8cda651a2958930a5c233d841940c2d9.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3336
- C:\Users\Admin\AppData\Local\Temp\fud.exe
  "C:\Users\Admin\AppData\Local\Temp\fud.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1944

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

Replay Monitor

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Downloads

fud.exe

Path C:\Users\Admin\AppData\Local\Temp\fud.exe
Size 94KB
SHA256 229644c65d6c868140e9678122320c9df7db84e5fe74c715d61bd454f7bd7189
MD5 1a54b5e4a7b905cf7c9831c1eaf5106a
SHA1 a342422b2823a81fa03cc277814e4c9b9dbbc52d
SHA512 85772b196917a97a0af2a2ab7c7438ac77bc1862a7ebbd0e5302adb54c8b2a003ac116b7d251d9eff53b0956522026492008d606b2e3be7f479fdcbfb02c449b
SSDEEP 1536:weGJ9f5c7G2G5nr3OxGaXeGFdQToVVC1aCHP+D5y5v2r/ujV7O8jTo/JCSJ3PMJ+:mJ9f5c7G22OxGaXeGFdQT8VC1eZuVO8e
MD5 SHA1 SHA512 SSDEEP

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