Overview

overview

10

Static

static

3

003f1fa80e...18.exe

windows7-x64

10

003f1fa80e...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    003f1fa80e9c1b9b2dd2a12c0dfcf225_JaffaCakes118

  • Size

    846KB

  • Sample

    240426-hya6gsbd76

  • MD5

    003f1fa80e9c1b9b2dd2a12c0dfcf225

  • SHA1

    669ccfc57121f26b7a328f4c8ff0a4baa0992541

  • SHA256

    cc15b6e991275ac051ac86e07a59debe4230183a2a53bfd2e682310bbff329a6

  • SHA512

    101945f3bc90a923e447778ec5c4b401ee7640dd0abda3848d9cc5a5de611543ca526ce560e74fed98df2c6a5589fc0b3cbad2b42c4ec966383232ab941f9c87

  • SSDEEP

    24576:TEtl9mRda1cSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0NuJvk:oEs1hu

Score
10/10
persistenceransomware

Malware Config

Targets

    • Target

      003f1fa80e9c1b9b2dd2a12c0dfcf225_JaffaCakes118

    • Size

      846KB

    • MD5

      003f1fa80e9c1b9b2dd2a12c0dfcf225

    • SHA1

      669ccfc57121f26b7a328f4c8ff0a4baa0992541

    • SHA256

      cc15b6e991275ac051ac86e07a59debe4230183a2a53bfd2e682310bbff329a6

    • SHA512

      101945f3bc90a923e447778ec5c4b401ee7640dd0abda3848d9cc5a5de611543ca526ce560e74fed98df2c6a5589fc0b3cbad2b42c4ec966383232ab941f9c87

    • SSDEEP

      24576:TEtl9mRda1cSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0NuJvk:oEs1hu

    Score
    10/10
    persistenceransomware

    • Modifies WinLogon for persistence

      persistence

    • Renames multiple (93) files with added filename extension

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

      ransomware

    • 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