Overview

overview

8

Static

static

7

aa16cbbe5c...18.exe

windows7-x64

8

aa16cbbe5c...18.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    134s
  • max time network
    104s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/08/2024, 07:18

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General

  • Target
    aa16cbbe5c9a3c3b467ef571bb7a5f60_JaffaCakes118.exe
  • Size 5.2MB
  • Sample240819-h46vcathkn
  • SHA256 52e20771047712d8ec8a069f3aa173b75f88e91c7466d4c020858085d3b53caf
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10
defense_evasiondiscoveryevasionpersistencetrojanupx

Malware Config

Signatures

  • Event Triggered Execution: Image File Execution Options Injection 1 TTPs 2 IoCs
    persistence
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 IoCs

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

    upx
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Checks for any installed AV software in registry 1 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
    evasiontrojan
  • Indicator Removal: Clear Persistence 1 TTPs 2 IoCs

    remove IFEO.

    defense_evasion
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

    defense_evasion
  • Drops file in System32 directory 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

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

    discovery
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aa16cbbe5c9a3c3b467ef571bb7a5f60_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\aa16cbbe5c9a3c3b467ef571bb7a5f60_JaffaCakes118.exe"
    1⤵
    • Event Triggered Execution: Image File Execution Options Injection
    • Checks computer location settings
    • Adds Run key to start application
    • Checks for any installed AV software in registry
    • Checks whether UAC is enabled
    • Indicator Removal: Clear Persistence
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5028
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c echo ok
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2956
    • C:\Windows\SysWOW64\cacls.exe
      "C:\Windows\System32\cacls.exe" C:\Windows\system32\com /e /t /g Admin:F
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1224
    • C:\Windows\SysWOW64\cacls.exe
      "C:\Windows\System32\cacls.exe" C:\Windows\system32\com /e /t /g Everyone:F
      2⤵
      • System Location Discovery: System Language Discovery
      PID:116
    • \??\c:\users\admin\appdata\local\temp\aa16cbbe5c9a3c3b467ef571bb7a5f60_jaffacakes118.exe.log
      "c:\users\admin\appdata\local\temp\aa16cbbe5c9a3c3b467ef571bb7a5f60_jaffacakes118.exe.log"
      2⤵
      • Event Triggered Execution: Image File Execution Options Injection
      • Checks computer location settings
      • Executes dropped EXE
      • Checks for any installed AV software in registry
      • Checks whether UAC is enabled
      • Indicator Removal: Clear Persistence
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1980
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c echo ok
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3120
      • C:\Windows\SysWOW64\cacls.exe
        "C:\Windows\System32\cacls.exe" C:\Windows\system32\com /e /t /g Admin:F
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2148
      • C:\Windows\SysWOW64\cacls.exe
        "C:\Windows\System32\cacls.exe" C:\Windows\system32\com /e /t /g Everyone:F
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2684
      • C:\Windows\SysWOW64\cacls.exe
        "C:\Windows\System32\cacls.exe" C:\Windows\system32\com\smss.exe /e /t /g Admin:F
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1584
      • C:\Windows\SysWOW64\cacls.exe
        "C:\Windows\System32\cacls.exe" C:\Windows\system32\com\smss.exe /e /t /g Everyone:F
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1996
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c rd /s /q "C:\Windows\system32\com\smss.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3308
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c del /F /Q "C:\Windows\system32\com\lsass.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:644

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

        Event Triggered Execution

        1
        T1546

        Image File Execution Options Injection

        1
        T1546.012

        Privilege Escalation

        Boot or Logon Autostart Execution

        1
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Event Triggered Execution

        1
        T1546

        Image File Execution Options Injection

        1
        T1546.012

        Defense Evasion

        Indicator Removal

        2
        T1070

        Clear Persistence

        1
        T1070.009

        File Deletion

        1
        T1070.004

        Modify Registry

        1
        T1112

        Credential Access

        Discovery

        Query Registry

        1
        T1012

        Software Discovery

        1
        T1518

        Security Software Discovery

        1
        T1518.001

        System Information Discovery

        3
        T1082

        System Location Discovery

        1
        T1614

        System Language Discovery

        1
        T1614.001

        Lateral Movement

        Collection

        Command and Control

        Exfiltration

        Impact

        Replay Monitor

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        Downloads

        aa16cbbe5c9a3c3b467ef571bb7a5f60_jaffacakes118.exe.log
        • Path C:\Users\Admin\AppData\Local\Temp\aa16cbbe5c9a3c3b467ef571bb7a5f60_jaffacakes118.exe.log
        • Size 5.2MB
        • SHA256 52e20771047712d8ec8a069f3aa173b75f88e91c7466d4c020858085d3b53caf
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        smss.exe
        • Path C:\Windows\SysWOW64\com\smss.exe
        • Size 40KB
        • SHA256 a961e4f09ebcf11e1e384361d20d4ac031b3c159b9e6d50e3b4612102bef2a11
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/1980-18-0x0000000000400000-0x000000000042C000-memory.dmp
        Download

        memory/5028-0-0x0000000000400000-0x000000000042C000-memory.dmp
        Download

        memory/5028-10-0x0000000000400000-0x000000000042C000-memory.dmp
        Download