upatre | be91b041933508206e8b701af5ba0505a043f128f58487e85d70076c63c81361

Analysis

max time kernel
151s
max time network
121s
platform
windows7_x64
resource
win7-en-20211208
submitted
19-02-2022 19:22

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General

Target

be91b041933508206e8b701af5ba0505a043f128f58487e85d70076c63c81361.exe
Size

271KB
MD5

936cd80874b5b6ff61a4b032fda7b952
SHA1

4cb82bf92aa5dd75a2550c762cadd1734af560ab
SHA256

be91b041933508206e8b701af5ba0505a043f128f58487e85d70076c63c81361
SHA512

6c272365437e9de566e74f29c7cd500e551fb8414b961cbe89375be9fc61303fedfe1bb9217a55b75d4c8405540840fc54e46795831019e56f29fe809fba05fc

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
1112	szgfw.exe

Loads dropped DLL 2 IoCs

pid	Process
1520	be91b041933508206e8b701af5ba0505a043f128f58487e85d70076c63c81361.exe
1520	be91b041933508206e8b701af5ba0505a043f128f58487e85d70076c63c81361.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 1520 wrote to memory of 1112	1520	be91b041933508206e8b701af5ba0505a043f128f58487e85d70076c63c81361.exe	27
PID 1520 wrote to memory of 1112	1520	be91b041933508206e8b701af5ba0505a043f128f58487e85d70076c63c81361.exe	27
PID 1520 wrote to memory of 1112	1520	be91b041933508206e8b701af5ba0505a043f128f58487e85d70076c63c81361.exe	27
PID 1520 wrote to memory of 1112	1520	be91b041933508206e8b701af5ba0505a043f128f58487e85d70076c63c81361.exe	27

C:\Users\Admin\AppData\Local\Temp\be91b041933508206e8b701af5ba0505a043f128f58487e85d70076c63c81361.exe
"C:\Users\Admin\AppData\Local\Temp\be91b041933508206e8b701af5ba0505a043f128f58487e85d70076c63c81361.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1520
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:1112

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/1520-54-0x0000000075D61000-0x0000000075D63000-memory.dmp

Filesize
8KB

Download
memory/1520-56-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download