upatre | 21bb95f47965c68e387b3bbecdbbaebd330f3189d45984c3a37f44b88e99a0a0

Analysis

max time kernel
150s
max time network
100s
platform
windows7_x64
resource
win7v20210410
submitted
09-05-2021 00:08

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General

Target

21bb95f47965c68e387b3bbecdbbaebd330f3189d45984c3a37f44b88e99a0a0.exe
Size

30KB
MD5

c05a96a2e2d423227cc66dd125838bf0
SHA1

fa1c4544836c2eb97ea68169dc87c6c1eec18569
SHA256

21bb95f47965c68e387b3bbecdbbaebd330f3189d45984c3a37f44b88e99a0a0
SHA512

19d1e64e6a480a51c17d298e2b796b69cc62412a3e8ee972ccb9bf61f4d2ba3c70b424a94516ab18e4ec318d3d28eee72d92b679d196bc486087bd5e302dbcae

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
1404	szgfw.exe

Loads dropped DLL 2 IoCs

pid	Process
792	21bb95f47965c68e387b3bbecdbbaebd330f3189d45984c3a37f44b88e99a0a0.exe
792	21bb95f47965c68e387b3bbecdbbaebd330f3189d45984c3a37f44b88e99a0a0.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 792 wrote to memory of 1404	792	21bb95f47965c68e387b3bbecdbbaebd330f3189d45984c3a37f44b88e99a0a0.exe	29
PID 792 wrote to memory of 1404	792	21bb95f47965c68e387b3bbecdbbaebd330f3189d45984c3a37f44b88e99a0a0.exe	29
PID 792 wrote to memory of 1404	792	21bb95f47965c68e387b3bbecdbbaebd330f3189d45984c3a37f44b88e99a0a0.exe	29
PID 792 wrote to memory of 1404	792	21bb95f47965c68e387b3bbecdbbaebd330f3189d45984c3a37f44b88e99a0a0.exe	29

C:\Users\Admin\AppData\Local\Temp\21bb95f47965c68e387b3bbecdbbaebd330f3189d45984c3a37f44b88e99a0a0.exe
"C:\Users\Admin\AppData\Local\Temp\21bb95f47965c68e387b3bbecdbbaebd330f3189d45984c3a37f44b88e99a0a0.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:792
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:1404

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/792-59-0x0000000075551000-0x0000000075553000-memory.dmp

Filesize
8KB

Download
memory/792-65-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download