Overview

overview

10

Static

static

7

fb5ee730b9...18.exe

windows7-x64

10

fb5ee730b9...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    fb5ee730b9528ba771834519ee1af800_JaffaCakes118

  • Size

    7.4MB

  • Sample

    240419-24rj7sag81

  • MD5

    fb5ee730b9528ba771834519ee1af800

  • SHA1

    c85ce212e5469072972a6705bbe6d6f64dc8e04e

  • SHA256

    d4a3b710fde9a9a0a812af2f6b4bfa82e69becec16e78bed30f2d4a871900b76

  • SHA512

    71b6e16176f89f090e205648ed64d71e786b1af221cc979d7f656392422d059f68210df39e27366e06cbd684a25122268e7e96ea5bcf3d83b92f1e583bfbc9ea

  • SSDEEP

    49152:Kwi0L0q+wi0L0qRAB8NIMI8Sfpwotkzaxc1OGz8z:Vi0fi0HJIMzKpXOMGQz

Score
10/10
aspackv2persistenceransomware

Malware Config

Targets

    • Target

      fb5ee730b9528ba771834519ee1af800_JaffaCakes118

    • Size

      7.4MB

    • MD5

      fb5ee730b9528ba771834519ee1af800

    • SHA1

      c85ce212e5469072972a6705bbe6d6f64dc8e04e

    • SHA256

      d4a3b710fde9a9a0a812af2f6b4bfa82e69becec16e78bed30f2d4a871900b76

    • SHA512

      71b6e16176f89f090e205648ed64d71e786b1af221cc979d7f656392422d059f68210df39e27366e06cbd684a25122268e7e96ea5bcf3d83b92f1e583bfbc9ea

    • SSDEEP

      49152:Kwi0L0q+wi0L0qRAB8NIMI8Sfpwotkzaxc1OGz8z:Vi0fi0HJIMzKpXOMGQz

    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