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Overview

overview

10

Static

static

1

JaffaCakes...23.exe

windows7-x64

10

JaffaCakes...23.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    148s
  • 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, 21:13

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General

  • Target

    JaffaCakes118_18221d7469983e0559fbbceb7316d3980577df844167a24eff06eb003ac55b23.exe

  • Size

    4.1MB

  • MD5

    4cf41255dad149b4aa5b912c983e4973

  • SHA1

    309169429cd3e5e1e7e858b1397ff6cb157c3e34

  • SHA256

    18221d7469983e0559fbbceb7316d3980577df844167a24eff06eb003ac55b23

  • SHA512

    aa7cac1a80a622c9d234dd2ce3240c1d020330dfb58e8f00e02b29ac9e3ff681c49347d45866e29aa26975c2aac35f4d2379d29c9feed7c03fccc467f2d2477f

  • SSDEEP

    98304:8EUXjxKE/tLlTNA9137X2o9jwFl45jsPrwNb3ylYT1GI:TmN/tLJN8VrRjGl45jsPcNb3PJd

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 20 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_18221d7469983e0559fbbceb7316d3980577df844167a24eff06eb003ac55b23.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_18221d7469983e0559fbbceb7316d3980577df844167a24eff06eb003ac55b23.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1956
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_18221d7469983e0559fbbceb7316d3980577df844167a24eff06eb003ac55b23.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_18221d7469983e0559fbbceb7316d3980577df844167a24eff06eb003ac55b23.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:2100
      • 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:3048
        • 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:60
      • 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:2324
        • 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:4832
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4688
          • 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:2800
          • 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:4560

    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

      4cf41255dad149b4aa5b912c983e4973

      SHA1

      309169429cd3e5e1e7e858b1397ff6cb157c3e34

      SHA256

      18221d7469983e0559fbbceb7316d3980577df844167a24eff06eb003ac55b23

      SHA512

      aa7cac1a80a622c9d234dd2ce3240c1d020330dfb58e8f00e02b29ac9e3ff681c49347d45866e29aa26975c2aac35f4d2379d29c9feed7c03fccc467f2d2477f

      Download Submit

    • memory/1956-1-0x00000000010D0000-0x00000000014C2000-memory.dmp

      Filesize

      3.9MB

      Download

    • memory/1956-2-0x0000000002D70000-0x00000000035E7000-memory.dmp

      Filesize

      8.5MB

      Download

    • memory/1956-3-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/1956-6-0x0000000002D70000-0x00000000035E7000-memory.dmp

      Filesize

      8.5MB

      Download

    • memory/1956-4-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/2100-7-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/2100-8-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/2100-15-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/2324-23-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/2324-28-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/2324-21-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/2324-24-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/2324-25-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/2324-26-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/2324-27-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/2324-22-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/2324-29-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/2324-30-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/2324-31-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/2324-32-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/2324-33-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/2324-34-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download