upatre | 7a90b5f598457780f1da3dd4140734d3477e047352b89d0350f5903b4e140ba2

Analysis

max time kernel
150s
max time network
8s
platform
windows7_x64
resource
win7v20210410
submitted
18/05/2021, 00:13

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General

Target

7a90b5f598457780f1da3dd4140734d3477e047352b89d0350f5903b4e140ba2.exe
Size

31KB
MD5

08d559ba762634a65f28a3bc18802e2b
SHA1

9b22b230015b31ac0349fce64332a3b535da42f1
SHA256

7a90b5f598457780f1da3dd4140734d3477e047352b89d0350f5903b4e140ba2
SHA512

79096e47f7c7cd56cadcd705c0a7673c97d97394fe4637aa9f331af52704898cfb355bdbd708f5d45398ac643d11a4af35c5189f946d42bfb826171798fb3f85

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
1264	szgfw.exe

Loads dropped DLL 2 IoCs

pid	Process
452	7a90b5f598457780f1da3dd4140734d3477e047352b89d0350f5903b4e140ba2.exe
452	7a90b5f598457780f1da3dd4140734d3477e047352b89d0350f5903b4e140ba2.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 452 wrote to memory of 1264	452	7a90b5f598457780f1da3dd4140734d3477e047352b89d0350f5903b4e140ba2.exe	29
PID 452 wrote to memory of 1264	452	7a90b5f598457780f1da3dd4140734d3477e047352b89d0350f5903b4e140ba2.exe	29
PID 452 wrote to memory of 1264	452	7a90b5f598457780f1da3dd4140734d3477e047352b89d0350f5903b4e140ba2.exe	29
PID 452 wrote to memory of 1264	452	7a90b5f598457780f1da3dd4140734d3477e047352b89d0350f5903b4e140ba2.exe	29

C:\Users\Admin\AppData\Local\Temp\7a90b5f598457780f1da3dd4140734d3477e047352b89d0350f5903b4e140ba2.exe
"C:\Users\Admin\AppData\Local\Temp\7a90b5f598457780f1da3dd4140734d3477e047352b89d0350f5903b4e140ba2.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:452
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:1264

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/452-60-0x00000000753E1000-0x00000000753E3000-memory.dmp

Filesize
8KB

Download
memory/452-66-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download