a58f1eaf5a7504c91ced4df8255be5132d56d1ee330e1012adf9359a1fcd8eff | Triage

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Overview

overview

9

Static

static

5

a58f1eaf5a...fN.exe

windows7-x64

9

a58f1eaf5a...fN.exe

windows10-2004-x64

9

Sharing

General

Target

a58f1eaf5a7504c91ced4df8255be5132d56d1ee330e1012adf9359a1fcd8effN
Size

55KB
Sample

241009-nfqfcaxfrd
MD5

cf2593e68dc81e12a198eaec021fbeb0
SHA1

625d2bade369f74965d09c27e652f7769cd80615
SHA256

a58f1eaf5a7504c91ced4df8255be5132d56d1ee330e1012adf9359a1fcd8eff
SHA512

a50fb7cde2190d102ceffc3b8ded522dabee9587a4646a04b48fd3014a28d066aa4dedd05b7e8913d0a4cfcf92b10ad846eadb803a19d32cd30c458f41b8cd95
SSDEEP

768:kBT37CPKKdJJ1EXBwzEXBwdcMcI9AjBT37CPKKdJJ1EXBwzEXBwdcMcI9Ak:CTW7JJ7TKTW7JJ7Tn

Score

9^/10

discovery ransomware upx

Static task

static1

2 signatures

Behavioral task

behavioral1

Sample

a58f1eaf5a7504c91ced4df8255be5132d56d1ee330e1012adf9359a1fcd8effN.exe

Resource

win7-20240903-en

discovery ransomware upx

windows7-x64

8 signatures

150 seconds

Behavioral task

behavioral2

Sample

a58f1eaf5a7504c91ced4df8255be5132d56d1ee330e1012adf9359a1fcd8effN.exe

Resource

win10v2004-20241007-en

discovery ransomware upx

windows10-2004-x64

7 signatures

150 seconds

Malware Config

Targets

- Target
  
  a58f1eaf5a7504c91ced4df8255be5132d56d1ee330e1012adf9359a1fcd8effN
- Size
  
  55KB
- MD5
  
  cf2593e68dc81e12a198eaec021fbeb0
- SHA1
  
  625d2bade369f74965d09c27e652f7769cd80615
- SHA256
  
  a58f1eaf5a7504c91ced4df8255be5132d56d1ee330e1012adf9359a1fcd8eff
- SHA512
  
  a50fb7cde2190d102ceffc3b8ded522dabee9587a4646a04b48fd3014a28d066aa4dedd05b7e8913d0a4cfcf92b10ad846eadb803a19d32cd30c458f41b8cd95
- SSDEEP
  
  768:kBT37CPKKdJJ1EXBwzEXBwdcMcI9AjBT37CPKKdJJ1EXBwzEXBwdcMcI9Ak:CTW7JJ7TKTW7JJ7Tn
Score

9^/10

discovery ransomware upx
- Renames multiple (3894) files with added filename extension
  This suggests ransomware activity of encrypting all the files on the system.
  ransomware
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
behavioral1 behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

System Language Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

discoveryransomwareupx

behavioral2

discoveryransomwareupx

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