upatre | a52221256cbad99355bdc1d4f39e75b39e8ac1aeee690b16dfedd9246c30d855

Analysis

max time kernel
8s
max time network
11s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
23/10/2022, 15:06

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General

Target
a52221256cbad99355bdc1d4f39e75b39e8ac1aeee690b16dfedd9246c30d855.exe
Size 36KB
Sample221023-sg2bfsbabm
SHA256 a52221256cbad99355bdc1d4f39e75b39e8ac1aeee690b16dfedd9246c30d855
MD5 b13503d3caf5584720a03e30cc78368d
SHA1 1b2e9c74b05a8a1b511727d488017cf3045042c7
SHA512 e6a8516ab0f53c859902a87f0ac106bfa17117310a2b2381b8a8076d3ade9dae967e0cac3b9390223f1bceb7939dea1b4cda250d913d23c75b240612893a9ceb
SSDEEP 768:kf1Y9RRw/dUT6vurGd/pkUOyGAv+rh95kyq0Quh:GY9jw/dUT62rGdiUOWWrNH
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
4392	szgfw.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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	a52221256cbad99355bdc1d4f39e75b39e8ac1aeee690b16dfedd9246c30d855.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 3 IoCs

description	pid	Process	procid_target
PID 3400 wrote to memory of 4392	3400	a52221256cbad99355bdc1d4f39e75b39e8ac1aeee690b16dfedd9246c30d855.exe	82
PID 3400 wrote to memory of 4392	3400	a52221256cbad99355bdc1d4f39e75b39e8ac1aeee690b16dfedd9246c30d855.exe	82
PID 3400 wrote to memory of 4392	3400	a52221256cbad99355bdc1d4f39e75b39e8ac1aeee690b16dfedd9246c30d855.exe	82

C:\Users\Admin\AppData\Local\Temp\a52221256cbad99355bdc1d4f39e75b39e8ac1aeee690b16dfedd9246c30d855.exe
"C:\Users\Admin\AppData\Local\Temp\a52221256cbad99355bdc1d4f39e75b39e8ac1aeee690b16dfedd9246c30d855.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3400
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:4392

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

szgfw.exe

Path C:\Users\Admin\AppData\Local\Temp\szgfw.exe
Size 36KB
SHA256 b39f7ade991faab0e06c5e55c49d22d75e15bfaffe1d8369c094147d2493d85b
MD5 46cb801c0d006a81e7930a76ac2b28fe
SHA1 a25936fcb5bb1ecdee8e2e56d5d92031e302f4b5
SHA512 4893b879b228de9a1955147823f6e871db9de8cc80e8bc79e9eb57f383947d8f03956e98cee47f0a1ade1fe91d739399be3500bbdec59bbbc7222beeecfe6864
SSDEEP 768:kf1Y9RRw/dUT6vurGd/pkUOyGAv+rh95kyq0Quf:GY9jw/dUT62rGdiUOWWrNp
MD5 SHA1 SHA512 SSDEEP

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