upatre | 21b2fe40874b2cd769214f5226e810f1d03505ff56ccd8b40184aaf04b40e14c

Analysis

max time kernel
150s
max time network
55s
platform
windows10_x64
resource
win10v20210408
submitted
13/05/2021, 04:22

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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
4164	szgfw.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 4800 wrote to memory of 4164	4800	21b2fe40874b2cd769214f5226e810f1d03505ff56ccd8b40184aaf04b40e14c.exe	77
PID 4800 wrote to memory of 4164	4800	21b2fe40874b2cd769214f5226e810f1d03505ff56ccd8b40184aaf04b40e14c.exe	77
PID 4800 wrote to memory of 4164	4800	21b2fe40874b2cd769214f5226e810f1d03505ff56ccd8b40184aaf04b40e14c.exe	77

C:\Users\Admin\AppData\Local\Temp\21b2fe40874b2cd769214f5226e810f1d03505ff56ccd8b40184aaf04b40e14c.exe
"C:\Users\Admin\AppData\Local\Temp\21b2fe40874b2cd769214f5226e810f1d03505ff56ccd8b40184aaf04b40e14c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4800
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:4164

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

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Downloads

memory/4800-117-0x0000000000640000-0x0000000000641000-memory.dmp

Filesize
4KB

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