upatre | 3b4ae39137cfcf510da5f05540860a07cc6fb8c586cd5c75ef0edc344f3ca3fe

Analysis

max time kernel
151s
max time network
127s
platform
windows7_x64
resource
win7-en-20211208
submitted
14-02-2022 07:56

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General

Target

3b4ae39137cfcf510da5f05540860a07cc6fb8c586cd5c75ef0edc344f3ca3fe.exe
Size

335KB
MD5

f56c9000b6c689656e92063874a8e48b
SHA1

fc6458c4d5e44df6e1f68699df32eb6f1488d107
SHA256

3b4ae39137cfcf510da5f05540860a07cc6fb8c586cd5c75ef0edc344f3ca3fe
SHA512

4e587a61540dfc9cabae42a181811d617739eb3a7e7f3c594cfc096e106a78e2dc38182561d4a880f0c923f39827c94a1b59fbcdadd0d5f264ff8d44804efb6d

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
588	szgfw.exe

Loads dropped DLL 2 IoCs

pid	Process
1520	3b4ae39137cfcf510da5f05540860a07cc6fb8c586cd5c75ef0edc344f3ca3fe.exe
1520	3b4ae39137cfcf510da5f05540860a07cc6fb8c586cd5c75ef0edc344f3ca3fe.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 588	1520	3b4ae39137cfcf510da5f05540860a07cc6fb8c586cd5c75ef0edc344f3ca3fe.exe	27
PID 1520 wrote to memory of 588	1520	3b4ae39137cfcf510da5f05540860a07cc6fb8c586cd5c75ef0edc344f3ca3fe.exe	27
PID 1520 wrote to memory of 588	1520	3b4ae39137cfcf510da5f05540860a07cc6fb8c586cd5c75ef0edc344f3ca3fe.exe	27
PID 1520 wrote to memory of 588	1520	3b4ae39137cfcf510da5f05540860a07cc6fb8c586cd5c75ef0edc344f3ca3fe.exe	27

C:\Users\Admin\AppData\Local\Temp\3b4ae39137cfcf510da5f05540860a07cc6fb8c586cd5c75ef0edc344f3ca3fe.exe
"C:\Users\Admin\AppData\Local\Temp\3b4ae39137cfcf510da5f05540860a07cc6fb8c586cd5c75ef0edc344f3ca3fe.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:588

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/588-60-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/1520-54-0x00000000766D1000-0x00000000766D3000-memory.dmp

Filesize
8KB

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