Overview

overview

10

Static

static

1

dridex

windows10-2004-x64

10

Analysis

  • max time kernel
    151s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-03-2023 20:48

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General

  • Target

    b83042ce721971e96c124e7d534d0ec1516050bbcd84c8b7da76f9e06a890302.exe

  • Size

    4.1MB

  • MD5

    6d836acf9bec5f5020a9f075448cde4f

  • SHA1

    3e0f0f5233be9f3a17c74c96a5a110de0f42a6fd

  • SHA256

    b83042ce721971e96c124e7d534d0ec1516050bbcd84c8b7da76f9e06a890302

  • SHA512

    af6404eee6d04b7ee3b538edb5e87a25b451fc0671d9d5546d2b3125b32f4ad72f48fa1f4ee02ab9e4bf611c34c26b60212131b1a1a8428cfe00de9e9c9d866c

  • SSDEEP

    98304:1gllZtUzyXaTUcZNWhxCJtdbhiVLOMs9LZsG/IJsSDtGFiK:1g5iH4cZyxCJIEgGCswEiK

Score
10/10
gluptebadiscoverydropperevasionloaderpersistencerootkit

Malware Config

Signatures

  • Glupteba

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

    loaderdropperglupteba
  • Glupteba payload 16 IoCs
  • Modifies Windows Firewall 1 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
  • 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
  • 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 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\b83042ce721971e96c124e7d534d0ec1516050bbcd84c8b7da76f9e06a890302.exe
    "C:\Users\Admin\AppData\Local\Temp\b83042ce721971e96c124e7d534d0ec1516050bbcd84c8b7da76f9e06a890302.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1896
    • C:\Users\Admin\AppData\Local\Temp\b83042ce721971e96c124e7d534d0ec1516050bbcd84c8b7da76f9e06a890302.exe
      "C:\Users\Admin\AppData\Local\Temp\b83042ce721971e96c124e7d534d0ec1516050bbcd84c8b7da76f9e06a890302.exe"
      2⤵
      • Adds Run key to start application
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:400
      • 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:220
        • 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:2588
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Manipulates WinMonFS driver.
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4164
        • 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:1324
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:2488
          • 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:1684
          • 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:1416

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Modify Existing Service

    1
    T1031

    Registry Run Keys / Startup Folder

    1
    T1060

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    1
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    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:\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

      6d836acf9bec5f5020a9f075448cde4f

      SHA1

      3e0f0f5233be9f3a17c74c96a5a110de0f42a6fd

      SHA256

      b83042ce721971e96c124e7d534d0ec1516050bbcd84c8b7da76f9e06a890302

      SHA512

      af6404eee6d04b7ee3b538edb5e87a25b451fc0671d9d5546d2b3125b32f4ad72f48fa1f4ee02ab9e4bf611c34c26b60212131b1a1a8428cfe00de9e9c9d866c

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

      4.1MB

      MD5

      6d836acf9bec5f5020a9f075448cde4f

      SHA1

      3e0f0f5233be9f3a17c74c96a5a110de0f42a6fd

      SHA256

      b83042ce721971e96c124e7d534d0ec1516050bbcd84c8b7da76f9e06a890302

      SHA512

      af6404eee6d04b7ee3b538edb5e87a25b451fc0671d9d5546d2b3125b32f4ad72f48fa1f4ee02ab9e4bf611c34c26b60212131b1a1a8428cfe00de9e9c9d866c

      Download Submit
    • memory/400-141-0x0000000000400000-0x0000000002F4D000-memory.dmp
      Filesize

      43.3MB

      Download
    • memory/1896-134-0x0000000005220000-0x0000000005A97000-memory.dmp
      Filesize

      8.5MB

      Download
    • memory/1896-135-0x0000000000400000-0x0000000002F4D000-memory.dmp
      Filesize

      43.3MB

      Download
    • memory/4164-151-0x0000000000400000-0x0000000002F4D000-memory.dmp
      Filesize

      43.3MB

      Download
    • memory/4164-155-0x0000000000400000-0x0000000002F4D000-memory.dmp
      Filesize

      43.3MB

      Download
    • memory/4164-150-0x0000000000400000-0x0000000002F4D000-memory.dmp
      Filesize

      43.3MB

      Download
    • memory/4164-148-0x0000000000400000-0x0000000002F4D000-memory.dmp
      Filesize

      43.3MB

      Download
    • memory/4164-152-0x0000000000400000-0x0000000002F4D000-memory.dmp
      Filesize

      43.3MB

      Download
    • memory/4164-153-0x0000000000400000-0x0000000002F4D000-memory.dmp
      Filesize

      43.3MB

      Download
    • memory/4164-154-0x0000000000400000-0x0000000002F4D000-memory.dmp
      Filesize

      43.3MB

      Download
    • memory/4164-149-0x0000000000400000-0x0000000002F4D000-memory.dmp
      Filesize

      43.3MB

      Download
    • memory/4164-156-0x0000000000400000-0x0000000002F4D000-memory.dmp
      Filesize

      43.3MB

      Download
    • memory/4164-157-0x0000000000400000-0x0000000002F4D000-memory.dmp
      Filesize

      43.3MB

      Download
    • memory/4164-158-0x0000000000400000-0x0000000002F4D000-memory.dmp
      Filesize

      43.3MB

      Download
    • memory/4164-159-0x0000000000400000-0x0000000002F4D000-memory.dmp
      Filesize

      43.3MB

      Download
    • memory/4164-160-0x0000000000400000-0x0000000002F4D000-memory.dmp
      Filesize

      43.3MB

      Download
    • memory/4164-161-0x0000000000400000-0x0000000002F4D000-memory.dmp
      Filesize

      43.3MB

      Download