Overview

overview

10

Static

static

7

fb8c7dd458...18.exe

windows7-x64

10

fb8c7dd458...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    fb8c7dd45865b3ed32eb0019d96d9cae_JaffaCakes118

  • Size

    2.3MB

  • Sample

    240420-a684gscg8v

  • MD5

    fb8c7dd45865b3ed32eb0019d96d9cae

  • SHA1

    298090a32f2609321f5d3f1648aacb6c33e2bdaa

  • SHA256

    942f1362e7bb80e1ce2b014c5c37266835bd759840445f1a25d6aba46ca99c8a

  • SHA512

    3354d8733c7fb0999d628e2e09da59614cfdb6694d9855da3ab5808bc64485fb68b3a09f3398db865343db0e397113b63e94e7c4a406403d3ae7406d2f0a2d41

  • SSDEEP

    12288:5MMpXKb0hNGh1kG0HWnAL7MMpXKb0hNGh1kG0HWnAL9B:5MMpXS0hN0V0H7MMpXS0hN0V0Hb

Score
10/10
aspackv2persistenceransomware

Malware Config

Targets

    • Target

      fb8c7dd45865b3ed32eb0019d96d9cae_JaffaCakes118

    • Size

      2.3MB

    • MD5

      fb8c7dd45865b3ed32eb0019d96d9cae

    • SHA1

      298090a32f2609321f5d3f1648aacb6c33e2bdaa

    • SHA256

      942f1362e7bb80e1ce2b014c5c37266835bd759840445f1a25d6aba46ca99c8a

    • SHA512

      3354d8733c7fb0999d628e2e09da59614cfdb6694d9855da3ab5808bc64485fb68b3a09f3398db865343db0e397113b63e94e7c4a406403d3ae7406d2f0a2d41

    • SSDEEP

      12288:5MMpXKb0hNGh1kG0HWnAL7MMpXKb0hNGh1kG0HWnAL9B:5MMpXS0hN0V0H7MMpXS0hN0V0Hb

    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