pysilon | 550f2b14044472857d256c3693940672ce66add4b10f9ce97e0f13608259ab16 | Triage

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Reports

Overview

overview

Static

static

source_prepared.exe

windows7-x64

7

source_prepared.exe

windows10-2004-x64

9

Sharing

General

Target

source_prepared.exe
Size

58.8MB
Sample

250326-kbnt6szvg1
MD5

d94fdaafcb89f62527df56ae8970b2e8
SHA1

7877489be0dfb774186cbd553ac904b40684f712
SHA256

550f2b14044472857d256c3693940672ce66add4b10f9ce97e0f13608259ab16
SHA512

92ac636c61cbdc312f333352a3acba30d21dabcdd365ff4f474dffb32631aaa636fd1a668ca9f7f5d6bc71ba92878b029680bf37c7f913c5cf292cb57cb721f1
SSDEEP

1572864:TtIupuDSKzl1iW7PuOkiqOv8im2AsME7WgelKiUr1myZ3v:KY2t2Y2OknOv8i3l4geMia1my

Score

10^/10

pysilon defense_evasion execution persistence pyinstaller upx

Static task

static1

pyinstaller pysilon

4 signatures

Behavioral task

behavioral1

Sample

source_prepared.exe

Resource

win7-20240903-en

windows7-x64

3 signatures

150 seconds

Behavioral task

behavioral2

Sample

source_prepared.exe

Resource

win10v2004-20250314-en

defense_evasion execution persistence upx

windows10-2004-x64

13 signatures

150 seconds

Malware Config

Targets

- Target
  
  source_prepared.exe
- Size
  
  58.8MB
- MD5
  
  d94fdaafcb89f62527df56ae8970b2e8
- SHA1
  
  7877489be0dfb774186cbd553ac904b40684f712
- SHA256
  
  550f2b14044472857d256c3693940672ce66add4b10f9ce97e0f13608259ab16
- SHA512
  
  92ac636c61cbdc312f333352a3acba30d21dabcdd365ff4f474dffb32631aaa636fd1a668ca9f7f5d6bc71ba92878b029680bf37c7f913c5cf292cb57cb721f1
- SSDEEP
  
  1572864:TtIupuDSKzl1iW7PuOkiqOv8im2AsME7WgelKiUr1myZ3v:KY2t2Y2OknOv8i3l4geMia1my
Score

9^/10

upx defense_evasion execution persistence
- Enumerates VirtualBox DLL files
- Command and Scripting Interpreter: PowerShell
  Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
  execution
- Sets file to hidden
  Modifies file attributes to stop it showing in Explorer etc.
  defense_evasion
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
  persistence
- Legitimate hosting services abused for malware hosting/C2
- 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

Command and Scripting Interpreter

PowerShell

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Defense Evasion

Hide Artifacts

Hidden Files and Directories

Modify Registry

Virtualization/Sandbox Evasion

Credential Access

Discovery

File and Directory Discovery

Virtualization/Sandbox Evasion

Lateral Movement

Collection

Command and Control

Web Service

Exfiltration

Impact

Tasks

static1

pyinstallerpysilon

behavioral1

behavioral2

defense_evasionexecutionpersistenceupx

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