Overview

overview

10

Static

static

7

b3e6f48349...18.exe

windows7-x64

10

b3e6f48349...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/08/2024, 14:51

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General

  • Target

    b3e6f4834937ca31247921585024238d_JaffaCakes118.exe

  • Size

    254KB

  • MD5

    b3e6f4834937ca31247921585024238d

  • SHA1

    215b0c52c958583519da4499bac9b8826db78b3b

  • SHA256

    4cbc247ffbfb8a00d73f40e6c47ad32b434f6d2f958baae82bec0420ef9cd219

  • SHA512

    db633bce52af99bae8398fd6c8dcdb47c6353aaf2004589ddb21e5a7c37c47d15272f032b48eec8e0e525533f5ab13c52ee1e8a05c1ff8786f5be79ae986d9f2

  • SSDEEP

    3072:KyqgStX49L8zdnbbBFfHBbDu1oNBP33EC8j26A3SdeBWz5soutLNs0:DYo9L8zdnbbBFfxQ+oSJs0

Score
10/10
defense_evasiondiscoveryevasionpersistencespywarestealertrojanupx

Malware Config

Signatures

  • Modifies firewall policy service 3 TTPs 18 IoCs
    evasion
  • Modifies security service 2 TTPs 1 IoCs
    evasion
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
    evasion
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
    evasion
  • UAC bypass 3 TTPs 3 IoCs
    evasiontrojan
  • Windows security bypass 2 TTPs 4 IoCs
    evasiontrojan
  • Disables RegEdit via registry modification 1 IoCs
    evasion
  • Disables Task Manager via registry modification
    evasion
  • Drops file in Drivers directory 1 IoCs
  • Event Triggered Execution: Image File Execution Options Injection 1 TTPs 64 IoCs
    persistence
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • UPX packed file 22 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Windows security modification 2 TTPs 15 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Indicator Removal: Clear Persistence 1 TTPs 46 IoCs

    remove IFEO.

    defense_evasion
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Modifies Control Panel 2 IoCs
    evasion
  • Modifies Internet Explorer settings 1 TTPs 14 IoCs
    adwarespyware
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
    stealer
  • Modifies registry class 24 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • System policy modification 1 TTPs 4 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\b3e6f4834937ca31247921585024238d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\b3e6f4834937ca31247921585024238d_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2464
    • C:\Users\Admin\E696D64614\winlogon.exe
      "C:\Users\Admin\E696D64614\winlogon.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4516
      • C:\Users\Admin\E696D64614\winlogon.exe
        "C:\Users\Admin\E696D64614\winlogon.exe"
        3⤵
        • Modifies firewall policy service
        • Modifies security service
        • Modifies visibility of file extensions in Explorer
        • Modifies visiblity of hidden/system files in Explorer
        • UAC bypass
        • Windows security bypass
        • Disables RegEdit via registry modification
        • Drops file in Drivers directory
        • Event Triggered Execution: Image File Execution Options Injection
        • Executes dropped EXE
        • Windows security modification
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Indicator Removal: Clear Persistence
        • System Location Discovery: System Language Discovery
        • Modifies Control Panel
        • Modifies Internet Explorer settings
        • Modifies Internet Explorer start page
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • System policy modification
        PID:4416

Network

        MITRE ATT&CK Enterprise v15

        Reconnaissance

        Resource Development

        Initial Access

        Execution

        Persistence

        Boot or Logon Autostart Execution

        1
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Create or Modify System Process

        2
        T1543

        Windows Service

        2
        T1543.003

        Event Triggered Execution

        1
        T1546

        Image File Execution Options Injection

        1
        T1546.012

        Privilege Escalation

        Abuse Elevation Control Mechanism

        1
        T1548

        Bypass User Account Control

        1
        T1548.002

        Boot or Logon Autostart Execution

        1
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Create or Modify System Process

        2
        T1543

        Windows Service

        2
        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

        Hide Artifacts

        2
        T1564

        Hidden Files and Directories

        2
        T1564.001

        Impair Defenses

        4
        T1562

        Disable or Modify System Firewall

        1
        T1562.004

        Disable or Modify Tools

        3
        T1562.001

        Indicator Removal

        1
        T1070

        Clear Persistence

        1
        T1070.009

        Modify Registry

        11
        T1112

        Credential Access

        Unsecured Credentials

        1
        T1552

        Credentials In Files

        1
        T1552.001

        Discovery

        Query Registry

        1
        T1012

        System Information Discovery

        3
        T1082

        System Location Discovery

        1
        T1614

        System Language Discovery

        1
        T1614.001

        Lateral Movement

        Collection

        Data from Local System

        1
        T1005

        Command and Control

        Exfiltration

        Impact

        Replay Monitor

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        Downloads

        • C:\Users\Admin\E696D64614\winlogon.exe
          Filesize

          254KB

          MD5

          b3e6f4834937ca31247921585024238d

          SHA1

          215b0c52c958583519da4499bac9b8826db78b3b

          SHA256

          4cbc247ffbfb8a00d73f40e6c47ad32b434f6d2f958baae82bec0420ef9cd219

          SHA512

          db633bce52af99bae8398fd6c8dcdb47c6353aaf2004589ddb21e5a7c37c47d15272f032b48eec8e0e525533f5ab13c52ee1e8a05c1ff8786f5be79ae986d9f2

          Download Submit

        • memory/2464-0-0x0000000000400000-0x0000000000441000-memory.dmp

          Filesize

          260KB

          Download

        • memory/2464-1-0x0000000000401000-0x0000000000402000-memory.dmp

          Filesize

          4KB

          Download

        • memory/2464-16-0x0000000000400000-0x0000000000441000-memory.dmp

          Filesize

          260KB

          Download

        • memory/4416-36-0x0000000000400000-0x0000000000425000-memory.dmp

          Filesize

          148KB

          Download

        • memory/4416-39-0x0000000000400000-0x0000000000425000-memory.dmp

          Filesize

          148KB

          Download

        • memory/4416-23-0x0000000000400000-0x0000000000425000-memory.dmp

          Filesize

          148KB

          Download

        • memory/4416-25-0x0000000000400000-0x0000000000425000-memory.dmp

          Filesize

          148KB

          Download

        • memory/4416-50-0x0000000000400000-0x0000000000425000-memory.dmp

          Filesize

          148KB

          Download

        • memory/4416-35-0x0000000000400000-0x0000000000425000-memory.dmp

          Filesize

          148KB

          Download

        • memory/4416-49-0x0000000000400000-0x0000000000425000-memory.dmp

          Filesize

          148KB

          Download

        • memory/4416-37-0x0000000000400000-0x0000000000425000-memory.dmp

          Filesize

          148KB

          Download

        • memory/4416-38-0x0000000000400000-0x0000000000425000-memory.dmp

          Filesize

          148KB

          Download

        • memory/4416-20-0x0000000000400000-0x0000000000425000-memory.dmp

          Filesize

          148KB

          Download

        • memory/4416-41-0x0000000000400000-0x0000000000425000-memory.dmp

          Filesize

          148KB

          Download

        • memory/4416-43-0x0000000000400000-0x0000000000425000-memory.dmp

          Filesize

          148KB

          Download

        • memory/4416-44-0x0000000000400000-0x0000000000425000-memory.dmp

          Filesize

          148KB

          Download

        • memory/4416-45-0x0000000000400000-0x0000000000425000-memory.dmp

          Filesize

          148KB

          Download

        • memory/4416-46-0x0000000000400000-0x0000000000425000-memory.dmp

          Filesize

          148KB

          Download

        • memory/4416-47-0x0000000000400000-0x0000000000425000-memory.dmp

          Filesize

          148KB

          Download

        • memory/4416-48-0x0000000000400000-0x0000000000425000-memory.dmp

          Filesize

          148KB

          Download

        • memory/4516-19-0x0000000000400000-0x0000000000441000-memory.dmp

          Filesize

          260KB

          Download

        • memory/4516-34-0x0000000000400000-0x0000000000441000-memory.dmp

          Filesize

          260KB

          Download