upatre | 8fb5bb6e9859732b8c4f0accb086cff88aab31a4050c8bd66da04ccf3bb2cfb3

Analysis

max time kernel
154s
max time network
127s
platform
windows7_x64
resource
win7-en-20211208
submitted
19-02-2022 19:53

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General

Target

8fb5bb6e9859732b8c4f0accb086cff88aab31a4050c8bd66da04ccf3bb2cfb3.exe
Size

31KB
MD5

ec04f3f4850e52e9d852374502beb39f
SHA1

00ba0a57045736c252d16e78ed89a8025f7152ab
SHA256

8fb5bb6e9859732b8c4f0accb086cff88aab31a4050c8bd66da04ccf3bb2cfb3
SHA512

9089b0bc8dc05b9f79b660dd13732ef03fbab9928e18f21a2995c0d59b4964d675e6b0a620ac2e6820330b780e844432eaea565f0302f9c877554d91c7d58ee4

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
568	szgfw.exe

Loads dropped DLL 2 IoCs

pid	Process
1632	8fb5bb6e9859732b8c4f0accb086cff88aab31a4050c8bd66da04ccf3bb2cfb3.exe
1632	8fb5bb6e9859732b8c4f0accb086cff88aab31a4050c8bd66da04ccf3bb2cfb3.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 1632 wrote to memory of 568	1632	8fb5bb6e9859732b8c4f0accb086cff88aab31a4050c8bd66da04ccf3bb2cfb3.exe	27
PID 1632 wrote to memory of 568	1632	8fb5bb6e9859732b8c4f0accb086cff88aab31a4050c8bd66da04ccf3bb2cfb3.exe	27
PID 1632 wrote to memory of 568	1632	8fb5bb6e9859732b8c4f0accb086cff88aab31a4050c8bd66da04ccf3bb2cfb3.exe	27
PID 1632 wrote to memory of 568	1632	8fb5bb6e9859732b8c4f0accb086cff88aab31a4050c8bd66da04ccf3bb2cfb3.exe	27

C:\Users\Admin\AppData\Local\Temp\8fb5bb6e9859732b8c4f0accb086cff88aab31a4050c8bd66da04ccf3bb2cfb3.exe
"C:\Users\Admin\AppData\Local\Temp\8fb5bb6e9859732b8c4f0accb086cff88aab31a4050c8bd66da04ccf3bb2cfb3.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1632
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:568

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/1632-54-0x0000000076421000-0x0000000076423000-memory.dmp

Filesize
8KB

Download
memory/1632-55-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download