Overview

overview

10

Static

static

3

8351f0b71d...18.exe

windows7-x64

10

8351f0b71d...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    8351f0b71db9e80b888b3f49dba43025_JaffaCakes118

  • Size

    276KB

  • Sample

    240802-gx54ssvdnc

  • MD5

    8351f0b71db9e80b888b3f49dba43025

  • SHA1

    16aabc8485d62c36365d39067911f5eb410b2ceb

  • SHA256

    48640b4ce98932b3c9b91f11008234268b58556aae8492681f30a41339fdb1c1

  • SHA512

    595a641742d13dd7ca1da2c1db37df4fa646469e8fb2045d8c397543cd8b35f56c1ed3ea41fff43cd265bb198252ea509f4370b746ce68d686d56f5327382d1f

  • SSDEEP

    6144:ucPKm2vdh1q2uNK5U86JQPDHDdx/QtqP:R2v71qrNAUPJQPDHvd

Score
10/10
defense_evasiondiscoveryevasionpersistenceprivilege_escalationtrojan

Malware Config

Targets

    • Target

      8351f0b71db9e80b888b3f49dba43025_JaffaCakes118

    • Size

      276KB

    • MD5

      8351f0b71db9e80b888b3f49dba43025

    • SHA1

      16aabc8485d62c36365d39067911f5eb410b2ceb

    • SHA256

      48640b4ce98932b3c9b91f11008234268b58556aae8492681f30a41339fdb1c1

    • SHA512

      595a641742d13dd7ca1da2c1db37df4fa646469e8fb2045d8c397543cd8b35f56c1ed3ea41fff43cd265bb198252ea509f4370b746ce68d686d56f5327382d1f

    • SSDEEP

      6144:ucPKm2vdh1q2uNK5U86JQPDHDdx/QtqP:R2v71qrNAUPJQPDHvd

    Score
    10/10
    defense_evasiondiscoveryevasionpersistenceprivilege_escalationtrojan

    • Modifies WinLogon for persistence

      persistence

    • UAC bypass

      evasiontrojan

    • Adds policy Run key to start application

      persistence

    • Disables RegEdit via registry modification

      evasion

    • Checks computer location settings

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

    • Executes dropped EXE

    • Impair Defenses: Safe Mode Boot

      defense_evasion

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Hijack Execution Flow: Executable Installer File Permissions Weakness

      Possible Turn off User Account Control's privilege elevation for standard users.

      defense_evasionpersistenceprivilege_escalation

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

1
T1547.004

Hijack Execution Flow

1
T1574

Executable Installer File Permissions Weakness

1
T1574.005

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

1
T1547.004

Hijack Execution Flow

1
T1574

Executable Installer File Permissions Weakness

1
T1574.005

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Hijack Execution Flow

1
T1574

Executable Installer File Permissions Weakness

1
T1574.005

Impair Defenses

2
T1562

Disable or Modify Tools

1
T1562.001

Safe Mode Boot

1
T1562.009

Modify Registry

5
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks