upatre | 1fad5f3d17115d37930873e2dd6a4118858b55df49d0ee43f6856b847dc78e57

Analysis

max time kernel
151s
max time network
150s
platform
windows7_x64
resource
win7v20210408
submitted
11-05-2021 10:02

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General

Target

1fad5f3d17115d37930873e2dd6a4118858b55df49d0ee43f6856b847dc78e57.exe
Size

41KB
MD5

b37f1e753157ab0125a2aef610929826
SHA1

9e3f7998489c491eb3babbc753a6698d895d6a9b
SHA256

1fad5f3d17115d37930873e2dd6a4118858b55df49d0ee43f6856b847dc78e57
SHA512

30cb6ad8148d1642f76497789aea33fdc4329b972f3c583acc60ba9d6f9e5ba6b082f7354e677c95f25e9cf7cfed428b762dad70192f41fd4ffeeda4881f98b9

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
1620	szgfw.exe

Loads dropped DLL 2 IoCs

pid	Process
1944	1fad5f3d17115d37930873e2dd6a4118858b55df49d0ee43f6856b847dc78e57.exe
1944	1fad5f3d17115d37930873e2dd6a4118858b55df49d0ee43f6856b847dc78e57.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 1944 wrote to memory of 1620	1944	1fad5f3d17115d37930873e2dd6a4118858b55df49d0ee43f6856b847dc78e57.exe	29
PID 1944 wrote to memory of 1620	1944	1fad5f3d17115d37930873e2dd6a4118858b55df49d0ee43f6856b847dc78e57.exe	29
PID 1944 wrote to memory of 1620	1944	1fad5f3d17115d37930873e2dd6a4118858b55df49d0ee43f6856b847dc78e57.exe	29
PID 1944 wrote to memory of 1620	1944	1fad5f3d17115d37930873e2dd6a4118858b55df49d0ee43f6856b847dc78e57.exe	29

C:\Users\Admin\AppData\Local\Temp\1fad5f3d17115d37930873e2dd6a4118858b55df49d0ee43f6856b847dc78e57.exe
"C:\Users\Admin\AppData\Local\Temp\1fad5f3d17115d37930873e2dd6a4118858b55df49d0ee43f6856b847dc78e57.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1944
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:1620

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/1944-59-0x0000000076691000-0x0000000076693000-memory.dmp

Filesize
8KB

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memory/1944-65-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

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