upatre | b2b74b51b3edea8b0a01ff9b0f60453b625563de5f2e092e44740e1a6679aec1

Analysis

max time kernel
150s
max time network
123s
platform
windows7_x64
resource
win7-en-20211208
submitted
19-02-2022 19:29

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General

Target

b2b74b51b3edea8b0a01ff9b0f60453b625563de5f2e092e44740e1a6679aec1.exe
Size

328KB
MD5

aff7d7ebdcba7d7ed345c73f538cd9e4
SHA1

9964325fb30f479c6f7855d4d7a766c7cc79e204
SHA256

b2b74b51b3edea8b0a01ff9b0f60453b625563de5f2e092e44740e1a6679aec1
SHA512

1b8703627397a0726a8aed3c7e99f3c8d66d5ffe9d6c21e16c12d0c04e15a16351c0f37b45b748841507800ca5191b92cac959f8ce8a4cbfcb2c6459ac49e72d

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
320	szgfw.exe

Loads dropped DLL 2 IoCs

pid	Process
980	b2b74b51b3edea8b0a01ff9b0f60453b625563de5f2e092e44740e1a6679aec1.exe
980	b2b74b51b3edea8b0a01ff9b0f60453b625563de5f2e092e44740e1a6679aec1.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 980 wrote to memory of 320	980	b2b74b51b3edea8b0a01ff9b0f60453b625563de5f2e092e44740e1a6679aec1.exe	27
PID 980 wrote to memory of 320	980	b2b74b51b3edea8b0a01ff9b0f60453b625563de5f2e092e44740e1a6679aec1.exe	27
PID 980 wrote to memory of 320	980	b2b74b51b3edea8b0a01ff9b0f60453b625563de5f2e092e44740e1a6679aec1.exe	27
PID 980 wrote to memory of 320	980	b2b74b51b3edea8b0a01ff9b0f60453b625563de5f2e092e44740e1a6679aec1.exe	27

C:\Users\Admin\AppData\Local\Temp\b2b74b51b3edea8b0a01ff9b0f60453b625563de5f2e092e44740e1a6679aec1.exe
"C:\Users\Admin\AppData\Local\Temp\b2b74b51b3edea8b0a01ff9b0f60453b625563de5f2e092e44740e1a6679aec1.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:980
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:320

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/980-53-0x0000000075F21000-0x0000000075F23000-memory.dmp

Filesize
8KB

Download
memory/980-54-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

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