Overview

overview

10

Static

static

3

67e66ebd63...18.exe

windows7-x64

10

67e66ebd63...18.exe

windows10-2004-x64

10

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General

  • Target

    67e66ebd63a38dbe2599eaf8e8e36154_JaffaCakes118

  • Size

    843KB

  • Sample

    240522-t3pefshc53

  • MD5

    67e66ebd63a38dbe2599eaf8e8e36154

  • SHA1

    2939b45589d48189538618a599c81ecc49e4d8dc

  • SHA256

    bd5d34c1e069176861d46539d8abceabb2e9060d54191080cd64eb4bf907b879

  • SHA512

    3257daaa155ad3c2f05e68d0a907177f20b317b95b69c32d75ae977d6e7945809ada572e4333b003d469aadd4b38493f48b476b271a7e3e78323d1e8dad0aab0

  • SSDEEP

    24576:TEtl9mRda1cSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0NuJvo:oEs1hC

Score
10/10
persistenceransomware

Malware Config

Targets

    • Target

      67e66ebd63a38dbe2599eaf8e8e36154_JaffaCakes118

    • Size

      843KB

    • MD5

      67e66ebd63a38dbe2599eaf8e8e36154

    • SHA1

      2939b45589d48189538618a599c81ecc49e4d8dc

    • SHA256

      bd5d34c1e069176861d46539d8abceabb2e9060d54191080cd64eb4bf907b879

    • SHA512

      3257daaa155ad3c2f05e68d0a907177f20b317b95b69c32d75ae977d6e7945809ada572e4333b003d469aadd4b38493f48b476b271a7e3e78323d1e8dad0aab0

    • SSDEEP

      24576:TEtl9mRda1cSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0NuJvo:oEs1hC

    Score
    10/10
    persistenceransomware

    • 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

    • 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