Overview

overview

10

Static

static

7

0046af8b8f...18.exe

windows7-x64

10

0046af8b8f...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118

  • Size

    863KB

  • Sample

    240426-jaa19abf4z

  • MD5

    0046af8b8f7390c9ffffa0cb21f0cb71

  • SHA1

    4e79a31dcdef729be1d4f803e99d3f69b116a5e1

  • SHA256

    2e9690b042e3be4bef18f559f5df992d8cff70b1f8d3aed3e649c7e100f1077f

  • SHA512

    61732e3e8ca309ba64fd8ac7a1adc1f0d5e1a5b22ae8b362e799ca4e3ca9ff44c364f8ece71efee6697f39e7e3c236f16dd326701beda8fe570a0db4dd015688

  • SSDEEP

    24576:ZMMpXS0hN0V0HZSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0ND:Kwi0L0qk+5W/W

Score
10/10
aspackv2persistenceransomware

Malware Config

Targets

    • Target

      0046af8b8f7390c9ffffa0cb21f0cb71_JaffaCakes118

    • Size

      863KB

    • MD5

      0046af8b8f7390c9ffffa0cb21f0cb71

    • SHA1

      4e79a31dcdef729be1d4f803e99d3f69b116a5e1

    • SHA256

      2e9690b042e3be4bef18f559f5df992d8cff70b1f8d3aed3e649c7e100f1077f

    • SHA512

      61732e3e8ca309ba64fd8ac7a1adc1f0d5e1a5b22ae8b362e799ca4e3ca9ff44c364f8ece71efee6697f39e7e3c236f16dd326701beda8fe570a0db4dd015688

    • SSDEEP

      24576:ZMMpXS0hN0V0HZSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0ND:Kwi0L0qk+5W/W

    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