Overview

overview

10

Static

static

3

JKT48.exe

windows7-x64

10

JKT48.exe

windows10-2004-x64

10

Resubmissions

28/03/2025, 14:59

250328-sc4wsazjx2 10

28/03/2025, 14:53

250328-r9rr2sxwbz 10

27/03/2025, 13:35

250327-qvr9laswew 10

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General

  • Target

    JKT48.exe

  • Size

    8.0MB

  • Sample

    250327-qvr9laswew

  • MD5

    41f5bac802f5e79dc2ca7a3db25d0001

  • SHA1

    ce56c42cadd2db13edf03c15ce3b11c2cfa00f9e

  • SHA256

    9b495506295d895825ddf2a45c28f704debc31f28c4943b1a78b75c898a4375d

  • SHA512

    94705e83ce1b104954be07210ea3648c7403a6dd86ebaf6e884ced1552636b6a05a3b2926415d6c49ff251a675815435e4b2a3c8f816bbbf68c08c3299db99ab

  • SSDEEP

    196608:PF35AX/ip4e/aS3e+gr80KILDjhoOX9oeqZ8r8swzH0e:d3KX/o4eSTr80xHhJ8s63

Score
10/10
bootkitdefense_evasiondiscoveryevasionexecutionexploitimpactpersistenceransomwaretrojan

Malware Config

Targets

    • Target

      JKT48.exe

    • Size

      8.0MB

    • MD5

      41f5bac802f5e79dc2ca7a3db25d0001

    • SHA1

      ce56c42cadd2db13edf03c15ce3b11c2cfa00f9e

    • SHA256

      9b495506295d895825ddf2a45c28f704debc31f28c4943b1a78b75c898a4375d

    • SHA512

      94705e83ce1b104954be07210ea3648c7403a6dd86ebaf6e884ced1552636b6a05a3b2926415d6c49ff251a675815435e4b2a3c8f816bbbf68c08c3299db99ab

    • SSDEEP

      196608:PF35AX/ip4e/aS3e+gr80KILDjhoOX9oeqZ8r8swzH0e:d3KX/o4eSTr80xHhJ8s63

    Score
    10/10
    bootkitdefense_evasiondiscoveryevasionexecutionexploitimpactpersistenceransomwaretrojan

    • Modifies Windows Defender DisableAntiSpyware settings

      evasiontrojan

    • UAC bypass

      defense_evasiontrojan

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Disables RegEdit via registry modification

      defense_evasion

    • Disables Task Manager via registry modification

      defense_evasion

    • Disables use of System Restore points

      defense_evasion

    • Event Triggered Execution: Image File Execution Options Injection

      persistence

    • Possible privilege escalation attempt

      exploit

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Modifies file permissions

      discovery

    • File and Directory Permissions Modification: Windows File and Directory Permissions Modification

      defense_evasion

    • Network Share Discovery

      Attempt to gather information on host network.

      discovery

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

1
T1047

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Image File Execution Options Injection

1
T1546.012

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Image File Execution Options Injection

1
T1546.012

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Direct Volume Access

1
T1006

File and Directory Permissions Modification

2
T1222

Windows File and Directory Permissions Modification

1
T1222.001

Impair Defenses

2
T1562

Disable or Modify Tools

2
T1562.001

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Modify Registry

3
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Credential Access

Discovery

Network Share Discovery

1
T1135

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

3
T1490

Tasks