General

  • Target

    a85c9730917a87036a9ab8e58dec039e_JaffaCakes118

  • Size

    1.1MB

  • Sample

    240614-hd5jlasekj

  • MD5

    a85c9730917a87036a9ab8e58dec039e

  • SHA1

    51a7239f996f99a0ebcc9c55194185ae3bd94fad

  • SHA256

    a7d0c50af4a4738f202ceb60ae6114b800294d83252c63a149726fad79b54f71

  • SHA512

    0b09319740d2df10e8c928ba166dbf952fd16794b39fb93ea627fcaef4bd54d8a8bbd68f4b079f08339371463dd59ad69f2493527bfc1fcdc45b76a6dc4c4d13

  • SSDEEP

    24576:TEtl9mRda1cSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0NuJvg:oEs1ho5W/9te

Score
10/10

Malware Config

Targets

    • Target

      a85c9730917a87036a9ab8e58dec039e_JaffaCakes118

    • Size

      1.1MB

    • MD5

      a85c9730917a87036a9ab8e58dec039e

    • SHA1

      51a7239f996f99a0ebcc9c55194185ae3bd94fad

    • SHA256

      a7d0c50af4a4738f202ceb60ae6114b800294d83252c63a149726fad79b54f71

    • SHA512

      0b09319740d2df10e8c928ba166dbf952fd16794b39fb93ea627fcaef4bd54d8a8bbd68f4b079f08339371463dd59ad69f2493527bfc1fcdc45b76a6dc4c4d13

    • SSDEEP

      24576:TEtl9mRda1cSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0NuJvg:oEs1ho5W/9te

    Score
    10/10
    • Modifies WinLogon for persistence

    • Renames multiple (91) files with added filename extension

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

    • 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

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Replication Through Removable Media

1
T1091

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

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Lateral Movement

Replication Through Removable Media

1
T1091

Tasks