upatre | 7927df47c0c78ba6770caaf8ef282c6d2f6ccbb57aba77886c2bcad56a5e6082

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
resource tags

arch:x64arch:x86image:win10v2004-20220414-enlocale:en-usos:windows10-2004-x64system
submitted
15-07-2022 14:32

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General

Target

virussign.exe
Size

32KB
MD5

1da5c915374dcdb32adeaa4d0fc61770
SHA1

fb8f9d14cb4b763b988060014f3779ead3cdf488
SHA256

7927df47c0c78ba6770caaf8ef282c6d2f6ccbb57aba77886c2bcad56a5e6082
SHA512

c6de5e7db7b04ca4349f12e6b51ec72bc46bbfb9741fb50eea13e97861051c3f4d293ba9b40ac2bb465cd5f6e741c124bb8fa3127874d655494652d68ea66020

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
736	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-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	virussign.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 1752 wrote to memory of 736	1752	virussign.exe	81
PID 1752 wrote to memory of 736	1752	virussign.exe	81
PID 1752 wrote to memory of 736	1752	virussign.exe	81

C:\Users\Admin\AppData\Local\Temp\virussign.exe
"C:\Users\Admin\AppData\Local\Temp\virussign.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:736

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\szgfw.exe

Filesize
32KB

MD5
2ccf9b5558877472283aa3026317c59d

SHA1
2e00f62a4a6e81cc6a4049d7827a68b44a802614

SHA256
017181a54226efded63c0d9b244b81a00df8e830138f93ac85a983a5fc83d26b

SHA512
09cc5a392c34be80902d48df3edf7dc0f17dec7a96a444fec5acb5c1ee5845cb21e42f2941a8864db1c05cbb90c02d42f45e46a7ac0a0114ba7d40c1d22b400f

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C:\Users\Admin\AppData\Local\Temp\szgfw.exe

Filesize
32KB

MD5
2ccf9b5558877472283aa3026317c59d

SHA1
2e00f62a4a6e81cc6a4049d7827a68b44a802614

SHA256
017181a54226efded63c0d9b244b81a00df8e830138f93ac85a983a5fc83d26b

SHA512
09cc5a392c34be80902d48df3edf7dc0f17dec7a96a444fec5acb5c1ee5845cb21e42f2941a8864db1c05cbb90c02d42f45e46a7ac0a0114ba7d40c1d22b400f

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