upatre | b3e8734501d2364bbf9083143abc2a15999cf8a112455ab749452e7d0f68f486

Analysis

max time kernel
150s
max time network
139s
platform
windows10_x64
resource
win10v20210410
submitted
11-05-2021 10:45

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General

Target

b3e8734501d2364bbf9083143abc2a15999cf8a112455ab749452e7d0f68f486.exe
Size

38KB
MD5

cc065719345a16a9af98a59636f91077
SHA1

873b898a085064825cb1714efca678367eb2440b
SHA256

b3e8734501d2364bbf9083143abc2a15999cf8a112455ab749452e7d0f68f486
SHA512

105fa9a901bf3d1d5dd7d16f6d7a9cacaabca0ff118ffa3808efc43c93c71e315e27a9d15ea549cb615a4348b8305271b76eb9a8b164801d646bfae9743a50a7

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
2720	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 1736 wrote to memory of 2720	1736	b3e8734501d2364bbf9083143abc2a15999cf8a112455ab749452e7d0f68f486.exe	78
PID 1736 wrote to memory of 2720	1736	b3e8734501d2364bbf9083143abc2a15999cf8a112455ab749452e7d0f68f486.exe	78
PID 1736 wrote to memory of 2720	1736	b3e8734501d2364bbf9083143abc2a15999cf8a112455ab749452e7d0f68f486.exe	78

C:\Users\Admin\AppData\Local\Temp\b3e8734501d2364bbf9083143abc2a15999cf8a112455ab749452e7d0f68f486.exe
"C:\Users\Admin\AppData\Local\Temp\b3e8734501d2364bbf9083143abc2a15999cf8a112455ab749452e7d0f68f486.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:2720

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/1736-117-0x0000000000560000-0x0000000000561000-memory.dmp

Filesize
4KB

Download
memory/2720-118-0x0000000000410000-0x00000000004BE000-memory.dmp

Filesize
696KB

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