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Overview

overview

10

Static

static

1

JaffaCakes...f3.exe

windows7-x64

10

JaffaCakes...f3.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/12/2024, 20:45

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General

  • Target

    JaffaCakes118_99dfef80934362aa5f8bde8007412ded6ba5f66346a3f94e8e3de1e143f3d5f3.exe

  • Size

    4.1MB

  • MD5

    fd27f1e3c55f1739d546f4faceb39984

  • SHA1

    43ee303c6947d9de183b542ed424a1febc3b6129

  • SHA256

    99dfef80934362aa5f8bde8007412ded6ba5f66346a3f94e8e3de1e143f3d5f3

  • SHA512

    278d6ea3b2fa507485b30e2ddf813df6635d3e0bf7698cd800acc803c3c4e23402964a1e2c65494381b4f0d4206bbfaa8dfed502a80adcd0262477ee1fd5cbe9

  • SSDEEP

    98304:VLVPU1jTZmc9NFhNDVJVb67aQgEUO2PAEzpFoLqIgYAtn9W6vgXp6BtAKx2FxNbR:bMh0Q3VmOQgEYHzpFoL/gYGn9W6vgZug

Score
10/10
gluptebadiscoverydropperevasionloaderpersistenceprivilege_escalationrootkit

Malware Config

Signatures

  • Glupteba

    Glupteba is a modular loader written in Golang with various components.

    loaderdropperglupteba
  • Glupteba family
    glupteba
  • Glupteba payload 19 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    evasion
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Manipulates WinMonFS driver. 1 IoCs

    Roottkits write to WinMonFS to hide directories/files from being detected.

    rootkitevasion
  • Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

    Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

  • Drops file in Windows directory 2 IoCs
  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

    persistenceprivilege_escalation
  • 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 data under HKEY_USERS 64 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_99dfef80934362aa5f8bde8007412ded6ba5f66346a3f94e8e3de1e143f3d5f3.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_99dfef80934362aa5f8bde8007412ded6ba5f66346a3f94e8e3de1e143f3d5f3.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1932
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_99dfef80934362aa5f8bde8007412ded6ba5f66346a3f94e8e3de1e143f3d5f3.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_99dfef80934362aa5f8bde8007412ded6ba5f66346a3f94e8e3de1e143f3d5f3.exe"
      2⤵
      • Adds Run key to start application
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1488
      • C:\Windows\system32\cmd.exe
        C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2256
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          PID:220
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Manipulates WinMonFS driver.
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1524
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:832
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4600
          • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
            C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            PID:4496
          • C:\Windows\SYSTEM32\schtasks.exe
            schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
            4⤵
            • Scheduled Task/Job: Scheduled Task
            PID:4960

    Network

    MITRE ATT&CK Enterprise v15

    Reconnaissance

    Resource Development

    Initial Access

    Execution

    Scheduled Task/Job

    1
    T1053

    Scheduled Task

    1
    T1053.005

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Create or Modify System Process

    1
    T1543

    Windows Service

    1
    T1543.003

    Event Triggered Execution

    1
    T1546

    Netsh Helper DLL

    1
    T1546.007

    Scheduled Task/Job

    1
    T1053

    Scheduled Task

    1
    T1053.005

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Create or Modify System Process

    1
    T1543

    Windows Service

    1
    T1543.003

    Event Triggered Execution

    1
    T1546

    Netsh Helper DLL

    1
    T1546.007

    Scheduled Task/Job

    1
    T1053

    Scheduled Task

    1
    T1053.005

    Defense Evasion

    Impair Defenses

    1
    T1562

    Disable or Modify System Firewall

    1
    T1562.004

    Modify Registry

    1
    T1112

    Credential Access

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    1
    T1082

    System Location Discovery

    1
    T1614

    System Language Discovery

    1
    T1614.001

    Lateral Movement

    Collection

    Command and Control

    Web Service

    1
    T1102

    Exfiltration

    Impact

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
      Filesize

      281KB

      MD5

      d98e33b66343e7c96158444127a117f6

      SHA1

      bb716c5509a2bf345c6c1152f6e3e1452d39d50d

      SHA256

      5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

      SHA512

      705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

      Download Submit

    • C:\Windows\rss\csrss.exe
      Filesize

      4.1MB

      MD5

      fd27f1e3c55f1739d546f4faceb39984

      SHA1

      43ee303c6947d9de183b542ed424a1febc3b6129

      SHA256

      99dfef80934362aa5f8bde8007412ded6ba5f66346a3f94e8e3de1e143f3d5f3

      SHA512

      278d6ea3b2fa507485b30e2ddf813df6635d3e0bf7698cd800acc803c3c4e23402964a1e2c65494381b4f0d4206bbfaa8dfed502a80adcd0262477ee1fd5cbe9

      Download Submit

    • memory/1488-7-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/1488-14-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/1488-8-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/1524-21-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/1524-29-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/1524-33-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/1524-32-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/1524-31-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/1524-30-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/1524-22-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/1524-23-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/1524-24-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/1524-25-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/1524-26-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/1524-27-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/1524-28-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/1932-4-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/1932-1-0x0000000002A50000-0x0000000002E43000-memory.dmp

      Filesize

      3.9MB

      Download

    • memory/1932-2-0x0000000002E50000-0x00000000036C6000-memory.dmp

      Filesize

      8.5MB

      Download

    • memory/1932-3-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/1932-5-0x0000000002E50000-0x00000000036C6000-memory.dmp

      Filesize

      8.5MB

      Download