Overview

overview

10

Static

static

7

7463420a02...18.exe

windows7-x64

10

7463420a02...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    7463420a02870fbc6318386de4786dde_JaffaCakes118

  • Size

    860KB

  • Sample

    240526-fk92jsfg3y

  • MD5

    7463420a02870fbc6318386de4786dde

  • SHA1

    20f763fbbb4fc322939d225b764a230e38808932

  • SHA256

    551bc49b5bb9a078a63d0241f068f2b88cd55a294be05bca5618c5615d3a61f3

  • SHA512

    94aa58f9c6439170fea4c911423b162a8939cadf9cde69f5264e4d3fd15f8fb850590dd7a7056284a8b5a17310425a90541f9d3912de86b03a674c6265f1ce3e

  • SSDEEP

    24576:ZMMpXS0hN0V0HZSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0NI:Kwi0L0qk8q

Score
10/10
aspackv2persistenceransomware

Malware Config

Targets

    • Target

      7463420a02870fbc6318386de4786dde_JaffaCakes118

    • Size

      860KB

    • MD5

      7463420a02870fbc6318386de4786dde

    • SHA1

      20f763fbbb4fc322939d225b764a230e38808932

    • SHA256

      551bc49b5bb9a078a63d0241f068f2b88cd55a294be05bca5618c5615d3a61f3

    • SHA512

      94aa58f9c6439170fea4c911423b162a8939cadf9cde69f5264e4d3fd15f8fb850590dd7a7056284a8b5a17310425a90541f9d3912de86b03a674c6265f1ce3e

    • SSDEEP

      24576:ZMMpXS0hN0V0HZSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0NI:Kwi0L0qk8q

    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