2bd843024c373e86260f141d51228c55015aa488ebcd24f0c5ca9636fd9b360c

Analysis

max time kernel
91s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
29/11/2022, 18:05

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General

Target
sample.exe
Size 337KB
Sample221129-wpfw9sce43
SHA256 06013460d92bfef5f63085d1d10afb87a417678642b199cdae282395d1b09261
MD5 cd5bc22cd00975467ba470a2aad9e3be
SHA1 c59f130dd579e3f7d31a4d8d0f3fa5f269b332f3
SHA512 887e12492751f0bbded9bd665c39a5a28e31d77bc2de0c8ade73b63173352d6e9bc8f9575d966772e39c4b1622aa4d9966e7f873b405eca8f4b2c515ab9b7ac9
SSDEEP 6144:+z+92mhAMJ/cPl3ihLcDkcK7TSH6eby0gePbS1hNPnHt6Q+hTnO3pE:+K2mhAMJ/cPlPgcK6bb6KbCL6phi3C
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4836	start.exe

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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	sample.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4836	start.exe
4836	start.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4836	start.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2452 wrote to memory of 4836	2452	sample.exe	80
PID 2452 wrote to memory of 4836	2452	sample.exe	80
PID 2452 wrote to memory of 4836	2452	sample.exe	80

C:\Users\Admin\AppData\Local\Temp\sample.exe
"C:\Users\Admin\AppData\Local\Temp\sample.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2452
- C:\Users\Admin\AppData\Local\Temp\RarSFX0\start.exe
  "C:\Users\Admin\AppData\Local\Temp\RarSFX0\start.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  PID:4836

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

Replay Monitor

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Downloads

start.exe

Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\start.exe
Size 41KB
SHA256 27d22e2fb09e101ec13d9dc16bf743d6a49111c3205ea9127d1733696c3afbe1
MD5 2b736720e2c2674b8037a03266574048
SHA1 b0fccf6893442467f1c8a7f05783d1f1ea27fa74
SHA512 70c6458db107dc7254abc61508f014fe40f11a733d043cc1388113ef2887dcb666656d65a51d61fa65fff25ede393e4a99bf6a9976a895255f5807e57abfad94
SSDEEP 768:SvEAd5WmLMO06JJT3ADF0+qH/f0WTt6FSkKYf6R08:SvEBmLRTR+qH/f0DSxBR08
MD5 SHA1 SHA512 SSDEEP

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start.exe

Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\start.exe
Size 41KB
SHA256 27d22e2fb09e101ec13d9dc16bf743d6a49111c3205ea9127d1733696c3afbe1
MD5 2b736720e2c2674b8037a03266574048
SHA1 b0fccf6893442467f1c8a7f05783d1f1ea27fa74
SHA512 70c6458db107dc7254abc61508f014fe40f11a733d043cc1388113ef2887dcb666656d65a51d61fa65fff25ede393e4a99bf6a9976a895255f5807e57abfad94
SSDEEP 768:SvEAd5WmLMO06JJT3ADF0+qH/f0WTt6FSkKYf6R08:SvEBmLRTR+qH/f0DSxBR08
MD5 SHA1 SHA512 SSDEEP

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