Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    01-02-2023 13:54

General

  • Target

    0341148d8fa0d9df3999ef50c3426e5b574c7d4f2547a20ef5d47c296de14f5d.exe

  • Size

    4.1MB

  • MD5

    58c4dcb8200ca658787c084e677307b3

  • SHA1

    9dad36e5089e811fc83a33af90d90a87f794f32b

  • SHA256

    0341148d8fa0d9df3999ef50c3426e5b574c7d4f2547a20ef5d47c296de14f5d

  • SHA512

    b0f079d91e906af80e9ca1e52a07e681bf94eef150ef627c1265054d3eb73c2cde0d86c9be97a6888bcb5334ed32f187d8344770c0bd73ae3c83c82195b3e987

  • SSDEEP

    98304:rvqB+6jdfdhFMmq0uT7/qws8A+llDgKWz/4694CmC:rvOLsm8Gws0lDNwX94C9

Malware Config

Signatures

  • Glupteba

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

  • Windows security bypass 2 TTPs 7 IoCs
  • Executes dropped EXE 2 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Windows security modification 2 TTPs 7 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

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

  • 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.

  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0341148d8fa0d9df3999ef50c3426e5b574c7d4f2547a20ef5d47c296de14f5d.exe
    "C:\Users\Admin\AppData\Local\Temp\0341148d8fa0d9df3999ef50c3426e5b574c7d4f2547a20ef5d47c296de14f5d.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2688
    • C:\Users\Admin\AppData\Local\Temp\0341148d8fa0d9df3999ef50c3426e5b574c7d4f2547a20ef5d47c296de14f5d.exe
      "C:\Users\Admin\AppData\Local\Temp\0341148d8fa0d9df3999ef50c3426e5b574c7d4f2547a20ef5d47c296de14f5d.exe"
      2⤵
      • Windows security bypass
      • Windows security modification
      • Adds Run key to start application
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3548
      • 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:3976
        • 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
          • Modifies data under HKEY_USERS
          PID:2872
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4944
        • 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:1192
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1560
          • 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:4632
          • 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:32

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    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

    Disabling Security Tools

    2
    T1089

    Modify Registry

    3
    T1112

    Discovery

    Query Registry

    1
    T1012

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      281KB

      MD5

      d98e33b66343e7c96158444127a117f6

      SHA1

      bb716c5509a2bf345c6c1152f6e3e1452d39d50d

      SHA256

      5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

      SHA512

      705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

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

      281KB

      MD5

      d98e33b66343e7c96158444127a117f6

      SHA1

      bb716c5509a2bf345c6c1152f6e3e1452d39d50d

      SHA256

      5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

      SHA512

      705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

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

      4.1MB

      MD5

      58c4dcb8200ca658787c084e677307b3

      SHA1

      9dad36e5089e811fc83a33af90d90a87f794f32b

      SHA256

      0341148d8fa0d9df3999ef50c3426e5b574c7d4f2547a20ef5d47c296de14f5d

      SHA512

      b0f079d91e906af80e9ca1e52a07e681bf94eef150ef627c1265054d3eb73c2cde0d86c9be97a6888bcb5334ed32f187d8344770c0bd73ae3c83c82195b3e987

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

      4.1MB

      MD5

      58c4dcb8200ca658787c084e677307b3

      SHA1

      9dad36e5089e811fc83a33af90d90a87f794f32b

      SHA256

      0341148d8fa0d9df3999ef50c3426e5b574c7d4f2547a20ef5d47c296de14f5d

      SHA512

      b0f079d91e906af80e9ca1e52a07e681bf94eef150ef627c1265054d3eb73c2cde0d86c9be97a6888bcb5334ed32f187d8344770c0bd73ae3c83c82195b3e987

    • memory/2688-155-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-116-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-118-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-119-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-120-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-121-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-122-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-123-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-124-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-125-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-126-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-127-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-128-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-129-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-130-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-132-0x0000000004E80000-0x0000000005273000-memory.dmp
      Filesize

      3.9MB

    • memory/2688-133-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-135-0x0000000005280000-0x0000000005AF7000-memory.dmp
      Filesize

      8.5MB

    • memory/2688-134-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-136-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-137-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-138-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-139-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-140-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-141-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-142-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-143-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-144-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-145-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-146-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-147-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-148-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-149-0x0000000000400000-0x0000000002F78000-memory.dmp
      Filesize

      43.5MB

    • memory/2688-150-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-151-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-152-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-153-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-154-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-161-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-115-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-117-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-158-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-159-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-160-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-157-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-162-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-163-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-164-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-165-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-166-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-167-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-168-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-169-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-170-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-171-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-172-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-173-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-174-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-175-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-176-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-177-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-178-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-179-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-180-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-181-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-182-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2688-247-0x0000000000400000-0x0000000002F78000-memory.dmp
      Filesize

      43.5MB

    • memory/2688-249-0x0000000005280000-0x0000000005AF7000-memory.dmp
      Filesize

      8.5MB

    • memory/2688-156-0x00000000774C0000-0x000000007764E000-memory.dmp
      Filesize

      1.6MB

    • memory/2872-294-0x0000000000000000-mapping.dmp
    • memory/3548-293-0x0000000004CF0000-0x00000000050DD000-memory.dmp
      Filesize

      3.9MB

    • memory/3548-295-0x0000000000400000-0x0000000002F78000-memory.dmp
      Filesize

      43.5MB

    • memory/3548-311-0x0000000000400000-0x0000000002F78000-memory.dmp
      Filesize

      43.5MB

    • memory/3976-292-0x0000000000000000-mapping.dmp
    • memory/4632-373-0x0000000000000000-mapping.dmp
    • memory/4944-297-0x0000000000000000-mapping.dmp
    • memory/4944-365-0x0000000005000000-0x00000000053EA000-memory.dmp
      Filesize

      3.9MB

    • memory/4944-369-0x0000000000400000-0x0000000002F78000-memory.dmp
      Filesize

      43.5MB

    • memory/4944-379-0x0000000005000000-0x00000000053EA000-memory.dmp
      Filesize

      3.9MB

    • memory/4944-380-0x0000000000400000-0x0000000002F78000-memory.dmp
      Filesize

      43.5MB