upatre | 3ef858b1eb077cad768f0f11fb075ec4dd375546408a41404c7bc69e8916fe0c

Analysis

max time kernel
153s
max time network
133s
platform
windows7_x64
resource
win7-en-20211208
submitted
14/02/2022, 07:53

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General

Target

3ef858b1eb077cad768f0f11fb075ec4dd375546408a41404c7bc69e8916fe0c.exe
Size

39KB
MD5

3029da1bc7e40fc66d049998d90c9fd5
SHA1

18449595e05528476a835c469ea8314a4ddc7e4a
SHA256

3ef858b1eb077cad768f0f11fb075ec4dd375546408a41404c7bc69e8916fe0c
SHA512

3301d3e31d7864373a1a9309b41da6949dcf5bd9beb2b287505e42ce98796165d6140c3d0fda0f0963a890a230e8a2a3d16eaf987245def1579545a862d37d2b

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
268	szgfw.exe

Loads dropped DLL 2 IoCs

pid	Process
1660	3ef858b1eb077cad768f0f11fb075ec4dd375546408a41404c7bc69e8916fe0c.exe
1660	3ef858b1eb077cad768f0f11fb075ec4dd375546408a41404c7bc69e8916fe0c.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 1660 wrote to memory of 268	1660	3ef858b1eb077cad768f0f11fb075ec4dd375546408a41404c7bc69e8916fe0c.exe	27
PID 1660 wrote to memory of 268	1660	3ef858b1eb077cad768f0f11fb075ec4dd375546408a41404c7bc69e8916fe0c.exe	27
PID 1660 wrote to memory of 268	1660	3ef858b1eb077cad768f0f11fb075ec4dd375546408a41404c7bc69e8916fe0c.exe	27
PID 1660 wrote to memory of 268	1660	3ef858b1eb077cad768f0f11fb075ec4dd375546408a41404c7bc69e8916fe0c.exe	27

C:\Users\Admin\AppData\Local\Temp\3ef858b1eb077cad768f0f11fb075ec4dd375546408a41404c7bc69e8916fe0c.exe
"C:\Users\Admin\AppData\Local\Temp\3ef858b1eb077cad768f0f11fb075ec4dd375546408a41404c7bc69e8916fe0c.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1660
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:268

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/1660-54-0x00000000754B1000-0x00000000754B3000-memory.dmp

Filesize
8KB

Download
memory/1660-55-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download