upatre | 21b2fe40874b2cd769214f5226e810f1d03505ff56ccd8b40184aaf04b40e14c

Analysis

max time kernel
151s
max time network
121s
platform
windows7_x64
resource
win7v20210410
submitted
13/05/2021, 04:22

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

21b2fe40874b2cd769214f5226e810f1d03505ff56ccd8b40184aaf04b40e14c.exe
Size

33KB
MD5

a2c18d9b7dcab7bca7c2f042166fe320
SHA1

10cbbb6d3d176afa0b3466f7a818f6290df42103
SHA256

21b2fe40874b2cd769214f5226e810f1d03505ff56ccd8b40184aaf04b40e14c
SHA512

34f0912a7d913f57b5b470d231f0b6c3c80199ddaf3af4dc3ab05668105c3cd5fcd8a28451babeb05672ec43cfe4dedbff9734daaae16e48f8cde2b9b3aae114

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
1680	szgfw.exe

Loads dropped DLL 2 IoCs

pid	Process
1052	21b2fe40874b2cd769214f5226e810f1d03505ff56ccd8b40184aaf04b40e14c.exe
1052	21b2fe40874b2cd769214f5226e810f1d03505ff56ccd8b40184aaf04b40e14c.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 4 IoCs

description	pid	Process	procid_target
PID 1052 wrote to memory of 1680	1052	21b2fe40874b2cd769214f5226e810f1d03505ff56ccd8b40184aaf04b40e14c.exe	29
PID 1052 wrote to memory of 1680	1052	21b2fe40874b2cd769214f5226e810f1d03505ff56ccd8b40184aaf04b40e14c.exe	29
PID 1052 wrote to memory of 1680	1052	21b2fe40874b2cd769214f5226e810f1d03505ff56ccd8b40184aaf04b40e14c.exe	29
PID 1052 wrote to memory of 1680	1052	21b2fe40874b2cd769214f5226e810f1d03505ff56ccd8b40184aaf04b40e14c.exe	29

C:\Users\Admin\AppData\Local\Temp\21b2fe40874b2cd769214f5226e810f1d03505ff56ccd8b40184aaf04b40e14c.exe
"C:\Users\Admin\AppData\Local\Temp\21b2fe40874b2cd769214f5226e810f1d03505ff56ccd8b40184aaf04b40e14c.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1052
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:1680

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1052-59-0x0000000074F31000-0x0000000074F33000-memory.dmp

Filesize
8KB

Download
memory/1052-65-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download