Overview

overview

10

Static

static

7

6c55d515eb...18.exe

windows7-x64

10

6c55d515eb...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    6c55d515eb2fff46e8f3398e95460553_JaffaCakes118

  • Size

    353KB

  • Sample

    240523-1fk7vahe8x

  • MD5

    6c55d515eb2fff46e8f3398e95460553

  • SHA1

    5e4cbcbe284270dfa59cd1ecf4ce2e59306a0323

  • SHA256

    d9e3ab1bfca3fe32af07e0c5fef0943438c3e507bd0e08d5418c42b8796c1cfe

  • SHA512

    279b621d4edf7110ba0b1a28ffe4c80ee17852ed2e6fb063ab6e8b704fabc6423b714a2d772db5a92deb561faf5e91d9e609c3a5a87129170fdb4eb6b2eaf251

  • SSDEEP

    6144:riMmXRH6pXfSb0ceR/VFAHh1kgcs0HW1kyAp0mgl8rhDM/2yT/Cw0B2uJ2s4otq0:ZMMpXKb0hNGh1kG0HWnAlU866w0B2uJ5

Score
10/10
aspackv2persistenceransomware

Malware Config

Targets

    • Target

      6c55d515eb2fff46e8f3398e95460553_JaffaCakes118

    • Size

      353KB

    • MD5

      6c55d515eb2fff46e8f3398e95460553

    • SHA1

      5e4cbcbe284270dfa59cd1ecf4ce2e59306a0323

    • SHA256

      d9e3ab1bfca3fe32af07e0c5fef0943438c3e507bd0e08d5418c42b8796c1cfe

    • SHA512

      279b621d4edf7110ba0b1a28ffe4c80ee17852ed2e6fb063ab6e8b704fabc6423b714a2d772db5a92deb561faf5e91d9e609c3a5a87129170fdb4eb6b2eaf251

    • SSDEEP

      6144:riMmXRH6pXfSb0ceR/VFAHh1kgcs0HW1kyAp0mgl8rhDM/2yT/Cw0B2uJ2s4otq0:ZMMpXKb0hNGh1kG0HWnAlU866w0B2uJ5

    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