upatre | 21bb95f47965c68e387b3bbecdbbaebd330f3189d45984c3a37f44b88e99a0a0

Analysis

max time kernel
150s
max time network
135s
platform
windows10_x64
resource
win10v20210410
submitted
09/05/2021, 00:08

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General

Target
21bb95f47965c68e387b3bbecdbbaebd330f3189d45984c3a37f44b88e99a0a0.exe
Size 30KB
Sample210509-482e73eem6
SHA256 21bb95f47965c68e387b3bbecdbbaebd330f3189d45984c3a37f44b88e99a0a0
MD5 c05a96a2e2d423227cc66dd125838bf0
SHA1 fa1c4544836c2eb97ea68169dc87c6c1eec18569
SHA512 19d1e64e6a480a51c17d298e2b796b69cc62412a3e8ee972ccb9bf61f4d2ba3c70b424a94516ab18e4ec318d3d28eee72d92b679d196bc486087bd5e302dbcae
MD5 SHA1 SHA512

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
3648	szgfw.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 3 IoCs

description	pid	Process	procid_target
PID 3988 wrote to memory of 3648	3988	21bb95f47965c68e387b3bbecdbbaebd330f3189d45984c3a37f44b88e99a0a0.exe	78
PID 3988 wrote to memory of 3648	3988	21bb95f47965c68e387b3bbecdbbaebd330f3189d45984c3a37f44b88e99a0a0.exe	78
PID 3988 wrote to memory of 3648	3988	21bb95f47965c68e387b3bbecdbbaebd330f3189d45984c3a37f44b88e99a0a0.exe	78

C:\Users\Admin\AppData\Local\Temp\21bb95f47965c68e387b3bbecdbbaebd330f3189d45984c3a37f44b88e99a0a0.exe
"C:\Users\Admin\AppData\Local\Temp\21bb95f47965c68e387b3bbecdbbaebd330f3189d45984c3a37f44b88e99a0a0.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3988
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:3648

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/3648-118-0x0000000000460000-0x0000000000461000-memory.dmp

Download

memory/3988-117-0x0000000000410000-0x000000000055A000-memory.dmp