upatre | 34b9fa4c7041a812b47a47e83f03971a03ec2a09dcd335c6be1788dab5d05968

Analysis

max time kernel
152s
max time network
157s
platform
windows10_x64
resource
win10v20210408
submitted
04/05/2021, 19:07

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General

Target
34b9fa4c7041a812b47a47e83f03971a03ec2a09dcd335c6be1788dab5d05968.exe
Size 34KB
Sample210504-43tsfkxrl6
SHA256 34b9fa4c7041a812b47a47e83f03971a03ec2a09dcd335c6be1788dab5d05968
MD5 b07a3e822d92c82df2740c720525f9c2
SHA1 049061c66248e412550a7ff21f6738f4d75a846b
SHA512 b0f7a73085217c07e9e54fd3c70af692f62c2c6428336aa8298bc9d1acbfec031ffb3b671085530711ddc8bc7b0ba37db963f84ef0e2d961b3fd5b12f990fe9e
MD5 SHA1 SHA512

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
3652	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 1000 wrote to memory of 3652	1000	34b9fa4c7041a812b47a47e83f03971a03ec2a09dcd335c6be1788dab5d05968.exe	77
PID 1000 wrote to memory of 3652	1000	34b9fa4c7041a812b47a47e83f03971a03ec2a09dcd335c6be1788dab5d05968.exe	77
PID 1000 wrote to memory of 3652	1000	34b9fa4c7041a812b47a47e83f03971a03ec2a09dcd335c6be1788dab5d05968.exe	77

C:\Users\Admin\AppData\Local\Temp\34b9fa4c7041a812b47a47e83f03971a03ec2a09dcd335c6be1788dab5d05968.exe
"C:\Users\Admin\AppData\Local\Temp\34b9fa4c7041a812b47a47e83f03971a03ec2a09dcd335c6be1788dab5d05968.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1000
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:3652

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/1000-114-0x00000000004B0000-0x00000000005FA000-memory.dmp

Download

memory/3652-118-0x00000000001E0000-0x00000000001E1000-memory.dmp