Overview

overview

10

Static

static

7

736d9b379d...18.exe

windows7-x64

10

736d9b379d...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    736d9b379dd719e83ab72087e049a926_JaffaCakes118

  • Size

    688KB

  • Sample

    240525-172c5sda53

  • MD5

    736d9b379dd719e83ab72087e049a926

  • SHA1

    8c1046878e2c9552dfed5e669bd094912441b323

  • SHA256

    ecd58d531ddcad00b7f9074677c149f2413be98b6f4e544cfc350692b20cb3f0

  • SHA512

    f5720a9c7899c4506986041b8ccef9e8036d49fe0729b2a13b3d0163efaac1ce964fe13fdaa1f52a9ba7539ab63f6fbf470e4c59785b376f09aaf22a647b3a65

  • SSDEEP

    12288:ZMMpXKb0hNGh1kG0HWnAlU866w0B2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlO:ZMMpXS0hN0V0HZSGB2uJ2s4otqFCJrWx

Score
10/10
aspackv2persistenceransomware

Malware Config

Targets

    • Target

      736d9b379dd719e83ab72087e049a926_JaffaCakes118

    • Size

      688KB

    • MD5

      736d9b379dd719e83ab72087e049a926

    • SHA1

      8c1046878e2c9552dfed5e669bd094912441b323

    • SHA256

      ecd58d531ddcad00b7f9074677c149f2413be98b6f4e544cfc350692b20cb3f0

    • SHA512

      f5720a9c7899c4506986041b8ccef9e8036d49fe0729b2a13b3d0163efaac1ce964fe13fdaa1f52a9ba7539ab63f6fbf470e4c59785b376f09aaf22a647b3a65

    • SSDEEP

      12288:ZMMpXKb0hNGh1kG0HWnAlU866w0B2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlO:ZMMpXS0hN0V0HZSGB2uJ2s4otqFCJrWx

    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