Overview

overview

10

Static

static

10

altasinstaller.exe

windows7-x64

7

altasinstaller.exe

windows10-2004-x64

9

Sharing

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General

  • Target

    altasinstaller.exe

  • Size

    87.5MB

  • Sample

    250208-nyp8astqcn

  • MD5

    e1c8bc131cc1502e31dec5146351c557

  • SHA1

    95792a7ed9bec9bccf88b3ecdffe1a06fb72b8ef

  • SHA256

    214c22cc13004c4e5c7b6ef898d2c354acc6a27eb5125d8ff783c5e0b6508e06

  • SHA512

    b5807f60f1c5d6fde557c7c27b5424e57eefe7c8c1a962f3949f3a412603f94dfb26eb18e30bd5e1ebbf705a9ef6ccd7d51fe4a74d9d525d1382257b19f4eac0

  • SSDEEP

    1572864:z2GKlEWCsm/OkiqOv8im2AUdfmE7qliwiYgj+h58sMwhue9DOVwJq:znKe3sm/OknOv8i3XfCwy51ueV6

Score
10/10
pysilondefense_evasiondiscoveryexecutionpersistencepyinstallerupx

Malware Config

Targets

    • Target

      altasinstaller.exe

    • Size

      87.5MB

    • MD5

      e1c8bc131cc1502e31dec5146351c557

    • SHA1

      95792a7ed9bec9bccf88b3ecdffe1a06fb72b8ef

    • SHA256

      214c22cc13004c4e5c7b6ef898d2c354acc6a27eb5125d8ff783c5e0b6508e06

    • SHA512

      b5807f60f1c5d6fde557c7c27b5424e57eefe7c8c1a962f3949f3a412603f94dfb26eb18e30bd5e1ebbf705a9ef6ccd7d51fe4a74d9d525d1382257b19f4eac0

    • SSDEEP

      1572864:z2GKlEWCsm/OkiqOv8im2AUdfmE7qliwiYgj+h58sMwhue9DOVwJq:znKe3sm/OknOv8i3XfCwy51ueV6

    Score
    9/10
    upxdefense_evasiondiscoveryexecutionpersistence

    • 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

    • Downloads MZ/PE file

    • 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
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Modify Registry

1
T1112

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Discovery

File and Directory Discovery

1
T1083

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Virtualization/Sandbox Evasion

1
T1497

Lateral Movement

Collection

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Tasks