upatre | 335b0ba1fcee84e9d40ac0a7dec7d3f938fd38dfe77b163f78107a6dcd42b439

Analysis

max time kernel
149s
max time network
90s
platform
windows10_x64
resource
win10v20210408
submitted
11-05-2021 14:17

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General

Target

335b0ba1fcee84e9d40ac0a7dec7d3f938fd38dfe77b163f78107a6dcd42b439.exe
Size

27KB
MD5

e8db2c91c443ad69541659fb1bc4d12a
SHA1

8d12094c9ee7d3d5aca4fac237164de96915a795
SHA256

335b0ba1fcee84e9d40ac0a7dec7d3f938fd38dfe77b163f78107a6dcd42b439
SHA512

6523944193d19e42a452f2784a32030577328f3f2bbebe98b852a83505c0f197f0240cdb3bff69a943b95132e33f6141c6adaf4c1d800ab14a2e9b93d9f79286

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
1436	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 904 wrote to memory of 1436	904	335b0ba1fcee84e9d40ac0a7dec7d3f938fd38dfe77b163f78107a6dcd42b439.exe	78
PID 904 wrote to memory of 1436	904	335b0ba1fcee84e9d40ac0a7dec7d3f938fd38dfe77b163f78107a6dcd42b439.exe	78
PID 904 wrote to memory of 1436	904	335b0ba1fcee84e9d40ac0a7dec7d3f938fd38dfe77b163f78107a6dcd42b439.exe	78

C:\Users\Admin\AppData\Local\Temp\335b0ba1fcee84e9d40ac0a7dec7d3f938fd38dfe77b163f78107a6dcd42b439.exe
"C:\Users\Admin\AppData\Local\Temp\335b0ba1fcee84e9d40ac0a7dec7d3f938fd38dfe77b163f78107a6dcd42b439.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:904
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:1436

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/904-114-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/1436-118-0x0000000000410000-0x000000000055A000-memory.dmp

Filesize
1.3MB

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