upatre | bc7d71c61416c5ae8c10b936388575115d8e225d9c644f860e6fd751db37c082

Analysis

max time kernel
150s
max time network
124s
platform
windows7_x64
resource
win7v20210410
submitted
18-05-2021 05:14

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General

Target

bc7d71c61416c5ae8c10b936388575115d8e225d9c644f860e6fd751db37c082.exe
Size

43KB
MD5

b0d0914023f2ce6f3b370c985ba5a7c8
SHA1

4e64f4cf5200ec6f5f3a50500047d20253a34c06
SHA256

bc7d71c61416c5ae8c10b936388575115d8e225d9c644f860e6fd751db37c082
SHA512

05d4236a02a250e03c4090db22d5b9ba84c43cd56ee07638b760a468c4fdfcfd55efc5211cfdb32a778cdad5ed359f407f093377f064cddcff10cb6835fb83a1

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
1348	szgfw.exe

Loads dropped DLL 2 IoCs

pid	Process
1088	bc7d71c61416c5ae8c10b936388575115d8e225d9c644f860e6fd751db37c082.exe
1088	bc7d71c61416c5ae8c10b936388575115d8e225d9c644f860e6fd751db37c082.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 1088 wrote to memory of 1348	1088	bc7d71c61416c5ae8c10b936388575115d8e225d9c644f860e6fd751db37c082.exe	29
PID 1088 wrote to memory of 1348	1088	bc7d71c61416c5ae8c10b936388575115d8e225d9c644f860e6fd751db37c082.exe	29
PID 1088 wrote to memory of 1348	1088	bc7d71c61416c5ae8c10b936388575115d8e225d9c644f860e6fd751db37c082.exe	29
PID 1088 wrote to memory of 1348	1088	bc7d71c61416c5ae8c10b936388575115d8e225d9c644f860e6fd751db37c082.exe	29

C:\Users\Admin\AppData\Local\Temp\bc7d71c61416c5ae8c10b936388575115d8e225d9c644f860e6fd751db37c082.exe
"C:\Users\Admin\AppData\Local\Temp\bc7d71c61416c5ae8c10b936388575115d8e225d9c644f860e6fd751db37c082.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1088
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:1348

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/1088-59-0x00000000753B1000-0x00000000753B3000-memory.dmp

Filesize
8KB

Download
memory/1088-65-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download