Overview

overview

10

Static

static

7

fd965f1bfe...18.exe

windows7-x64

10

fd965f1bfe...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    fd965f1bfe9d770c2ee3e01ff66fff04_JaffaCakes118

  • Size

    2.0MB

  • Sample

    240420-zbf7nahg6y

  • MD5

    fd965f1bfe9d770c2ee3e01ff66fff04

  • SHA1

    6b1d92174db0e2acdd4cef92776e8926961a5f2d

  • SHA256

    91f6756f659f2b47e4c96d4c124c6b6b33d449dd7bbf9bbd3786b8c931ef6898

  • SHA512

    200cc8e843cc5239d8dec8c3a0c8f0f8c0cda8be0b7eb8be9c53511307e769b1bd2550d7174cf853815d06115d8230a09f5b1756ab69129c8fde2d851aebe64d

  • SSDEEP

    12288:5MMpXKb0hNGh1kG0HWnALbW4vbAfxu/Fw:5MMpXS0hN0V0HC4kfxuu

Score
10/10
aspackv2persistenceransomware

Malware Config

Targets

    • Target

      fd965f1bfe9d770c2ee3e01ff66fff04_JaffaCakes118

    • Size

      2.0MB

    • MD5

      fd965f1bfe9d770c2ee3e01ff66fff04

    • SHA1

      6b1d92174db0e2acdd4cef92776e8926961a5f2d

    • SHA256

      91f6756f659f2b47e4c96d4c124c6b6b33d449dd7bbf9bbd3786b8c931ef6898

    • SHA512

      200cc8e843cc5239d8dec8c3a0c8f0f8c0cda8be0b7eb8be9c53511307e769b1bd2550d7174cf853815d06115d8230a09f5b1756ab69129c8fde2d851aebe64d

    • SSDEEP

      12288:5MMpXKb0hNGh1kG0HWnALbW4vbAfxu/Fw:5MMpXS0hN0V0HC4kfxuu

    Score
    10/10
    aspackv2persistenceransomware

    • Modifies WinLogon for persistence

      persistence

    • Renames multiple (91) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

      aspackv2

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Replication Through Removable Media

1
T1091

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Winlogon Helper DLL

1
T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Winlogon Helper DLL

1
T1547.004

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Lateral Movement

Replication Through Removable Media

1
T1091

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks