upatre | 3b74f9386a3733e782c3c1451cba710af21497bdcb0e49073d6e8bd7d4b3ed19

Analysis

max time kernel
150s
max time network
147s
platform
windows7_x64
resource
win7v20210410
submitted
09-05-2021 19:36

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General

Target

3b74f9386a3733e782c3c1451cba710af21497bdcb0e49073d6e8bd7d4b3ed19.exe
Size

30KB
MD5

e7412fbd2a0809d22a08caefb982dc1c
SHA1

1ed6bbdd2f2487aff5dfaac2ed82d19621018c4a
SHA256

3b74f9386a3733e782c3c1451cba710af21497bdcb0e49073d6e8bd7d4b3ed19
SHA512

b59750b413651759b60fd91eef6cd6a83a36e9fb053033d5ce0ec19b237a0c02d887b0d6e3be5616642b16ba8106d7fc07d38d0496da59d702d5fefddfbaee6c

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
1096	3b74f9386a3733e782c3c1451cba710af21497bdcb0e49073d6e8bd7d4b3ed19.exe
1096	3b74f9386a3733e782c3c1451cba710af21497bdcb0e49073d6e8bd7d4b3ed19.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 1096 wrote to memory of 1328	1096	3b74f9386a3733e782c3c1451cba710af21497bdcb0e49073d6e8bd7d4b3ed19.exe	29
PID 1096 wrote to memory of 1328	1096	3b74f9386a3733e782c3c1451cba710af21497bdcb0e49073d6e8bd7d4b3ed19.exe	29
PID 1096 wrote to memory of 1328	1096	3b74f9386a3733e782c3c1451cba710af21497bdcb0e49073d6e8bd7d4b3ed19.exe	29
PID 1096 wrote to memory of 1328	1096	3b74f9386a3733e782c3c1451cba710af21497bdcb0e49073d6e8bd7d4b3ed19.exe	29

C:\Users\Admin\AppData\Local\Temp\3b74f9386a3733e782c3c1451cba710af21497bdcb0e49073d6e8bd7d4b3ed19.exe
"C:\Users\Admin\AppData\Local\Temp\3b74f9386a3733e782c3c1451cba710af21497bdcb0e49073d6e8bd7d4b3ed19.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1096
- 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/1096-60-0x0000000075281000-0x0000000075283000-memory.dmp

Filesize
8KB

Download
memory/1096-66-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download