Overview

overview

10

Static

static

7

fc05ac57f6...18.exe

windows7-x64

10

fc05ac57f6...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    fc05ac57f696b3bea2bc6bf2f0feb8e4_JaffaCakes118

  • Size

    1.3MB

  • Sample

    240420-f34bqaac81

  • MD5

    fc05ac57f696b3bea2bc6bf2f0feb8e4

  • SHA1

    2812615287329b38788226f1a5eb4196f46d480d

  • SHA256

    a01ef084ac27fdcd0ade197aa66e700940482ad26677406444316ddfd8d5934d

  • SHA512

    d2ee77cb239859beb5808c8f016534e66b64aa3a487b464f5d4d59d5b9683329d8ad2ac51fd01273f35903abfa815dc986b15f0680b7af514c00f90168e6677c

  • SSDEEP

    6144:LiMmXRH6pXfSb0ceR/VFAHh1kgcs0HW1kyApHhP+gDzvR9:5MMpXKb0hNGh1kG0HWnALb9

Score
10/10
aspackv2persistenceransomware

Malware Config

Targets

    • Target

      fc05ac57f696b3bea2bc6bf2f0feb8e4_JaffaCakes118

    • Size

      1.3MB

    • MD5

      fc05ac57f696b3bea2bc6bf2f0feb8e4

    • SHA1

      2812615287329b38788226f1a5eb4196f46d480d

    • SHA256

      a01ef084ac27fdcd0ade197aa66e700940482ad26677406444316ddfd8d5934d

    • SHA512

      d2ee77cb239859beb5808c8f016534e66b64aa3a487b464f5d4d59d5b9683329d8ad2ac51fd01273f35903abfa815dc986b15f0680b7af514c00f90168e6677c

    • SSDEEP

      6144:LiMmXRH6pXfSb0ceR/VFAHh1kgcs0HW1kyApHhP+gDzvR9:5MMpXKb0hNGh1kG0HWnALb9

    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