upatre | 8c3057697545bd51d9a2db67fa57c6479d1dcf0b438400c07976c86f9a65b872

Analysis

max time kernel
150s
max time network
9s
platform
windows7_x64
resource
win7v20210410
submitted
16-05-2021 02:16

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General

Target

8c3057697545bd51d9a2db67fa57c6479d1dcf0b438400c07976c86f9a65b872.exe
Size

32KB
MD5

43a2440b2d1ef39919c96f96daab6d21
SHA1

a55c3ca1ffa372e23f43dc5fcb7723cc0f60b92b
SHA256

8c3057697545bd51d9a2db67fa57c6479d1dcf0b438400c07976c86f9a65b872
SHA512

3286e7700e2ee395a9640322fbf283d709fa8d38dad824c9ec2ed05a476ffa27c1c42504c354e7a2b215003126abad4610f30c303f43a56ecee3ada58cb11600

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
1328	szgfw.exe

Loads dropped DLL 2 IoCs

pid	Process
1072	8c3057697545bd51d9a2db67fa57c6479d1dcf0b438400c07976c86f9a65b872.exe
1072	8c3057697545bd51d9a2db67fa57c6479d1dcf0b438400c07976c86f9a65b872.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 1072 wrote to memory of 1328	1072	8c3057697545bd51d9a2db67fa57c6479d1dcf0b438400c07976c86f9a65b872.exe	29
PID 1072 wrote to memory of 1328	1072	8c3057697545bd51d9a2db67fa57c6479d1dcf0b438400c07976c86f9a65b872.exe	29
PID 1072 wrote to memory of 1328	1072	8c3057697545bd51d9a2db67fa57c6479d1dcf0b438400c07976c86f9a65b872.exe	29
PID 1072 wrote to memory of 1328	1072	8c3057697545bd51d9a2db67fa57c6479d1dcf0b438400c07976c86f9a65b872.exe	29

C:\Users\Admin\AppData\Local\Temp\8c3057697545bd51d9a2db67fa57c6479d1dcf0b438400c07976c86f9a65b872.exe
"C:\Users\Admin\AppData\Local\Temp\8c3057697545bd51d9a2db67fa57c6479d1dcf0b438400c07976c86f9a65b872.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1072
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:1328

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/1072-60-0x0000000075411000-0x0000000075413000-memory.dmp

Filesize
8KB

Download
memory/1072-66-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download