Overview

overview

10

Static

static

7

fc6104fab1...18.exe

windows7-x64

10

fc6104fab1...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    fc6104fab1626bf9add77de36c8adf7e_JaffaCakes118

  • Size

    2.7MB

  • Sample

    240420-krvbwsde5w

  • MD5

    fc6104fab1626bf9add77de36c8adf7e

  • SHA1

    f966412d993e11a03c8cab2fb73a10a3f272fc7e

  • SHA256

    ae9d95b4430abad8cb49d1a06485963a3a6eb402cb1978397cc58b3cb8da9fad

  • SHA512

    9c42ec930b8e2b0f61284c7678ef2a56201f4e3517d7df753faa94dab44b94a26d59087daf8eea1777ab336913f783ccc1a8263b8d1478da4dcd890f5e1ee6a1

  • SSDEEP

    24576:5MMpXS0hN0V0H7MMpXS0hN0V0Hs4kfxu/KB8NIyXba2J:qwi0L0qIwi0L0qM4kfxuSB8NIMN

Score
10/10
aspackv2persistenceransomware

Malware Config

Targets

    • Target

      fc6104fab1626bf9add77de36c8adf7e_JaffaCakes118

    • Size

      2.7MB

    • MD5

      fc6104fab1626bf9add77de36c8adf7e

    • SHA1

      f966412d993e11a03c8cab2fb73a10a3f272fc7e

    • SHA256

      ae9d95b4430abad8cb49d1a06485963a3a6eb402cb1978397cc58b3cb8da9fad

    • SHA512

      9c42ec930b8e2b0f61284c7678ef2a56201f4e3517d7df753faa94dab44b94a26d59087daf8eea1777ab336913f783ccc1a8263b8d1478da4dcd890f5e1ee6a1

    • SSDEEP

      24576:5MMpXS0hN0V0H7MMpXS0hN0V0Hs4kfxu/KB8NIyXba2J:qwi0L0qIwi0L0qM4kfxuSB8NIMN

    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