Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows10-1703_x64
  • resource
    win10-20220901-en
  • resource tags

    arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
  • submitted
    29-01-2023 08:08

General

  • Target

    389ea3d2ecd696342e4fc9cf10e4cafabd90b44d9e83f91f88899f2c37a231b5.exe

  • Size

    4.1MB

  • MD5

    134f6fa8c56686f414ba6fc100da15a8

  • SHA1

    6aa1fd2c556f577bd006e65b3e2496380584fcb0

  • SHA256

    389ea3d2ecd696342e4fc9cf10e4cafabd90b44d9e83f91f88899f2c37a231b5

  • SHA512

    7e17c1fab1574c28d17471a77042680861d8f2610ef1c1708783061b9c8f746be06252c41b0b7640318e09fb275f7c311d73936a417ce09c5b7cf46ec5cd8279

  • SSDEEP

    98304:k5yI0SOgapeVXm3qHpKY0heUlhvM2rnyIPCcNWYl06mRSL:kP0ngHXPHpD0U6nBPsS

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\389ea3d2ecd696342e4fc9cf10e4cafabd90b44d9e83f91f88899f2c37a231b5.exe
    "C:\Users\Admin\AppData\Local\Temp\389ea3d2ecd696342e4fc9cf10e4cafabd90b44d9e83f91f88899f2c37a231b5.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1928
    • C:\Users\Admin\AppData\Local\Temp\389ea3d2ecd696342e4fc9cf10e4cafabd90b44d9e83f91f88899f2c37a231b5.exe
      "C:\Users\Admin\AppData\Local\Temp\389ea3d2ecd696342e4fc9cf10e4cafabd90b44d9e83f91f88899f2c37a231b5.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:4260
      • 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:4740
        • 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:4612
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4672
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1156
          • 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:1256
          • 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:876
          • 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:2196

    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

      134f6fa8c56686f414ba6fc100da15a8

      SHA1

      6aa1fd2c556f577bd006e65b3e2496380584fcb0

      SHA256

      389ea3d2ecd696342e4fc9cf10e4cafabd90b44d9e83f91f88899f2c37a231b5

      SHA512

      7e17c1fab1574c28d17471a77042680861d8f2610ef1c1708783061b9c8f746be06252c41b0b7640318e09fb275f7c311d73936a417ce09c5b7cf46ec5cd8279

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

      4.1MB

      MD5

      134f6fa8c56686f414ba6fc100da15a8

      SHA1

      6aa1fd2c556f577bd006e65b3e2496380584fcb0

      SHA256

      389ea3d2ecd696342e4fc9cf10e4cafabd90b44d9e83f91f88899f2c37a231b5

      SHA512

      7e17c1fab1574c28d17471a77042680861d8f2610ef1c1708783061b9c8f746be06252c41b0b7640318e09fb275f7c311d73936a417ce09c5b7cf46ec5cd8279

    • memory/876-377-0x0000000000000000-mapping.dmp
    • memory/1928-158-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-157-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-124-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-125-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-126-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-127-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-128-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-129-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-130-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-131-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-132-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-133-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-134-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-136-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-137-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-138-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-139-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-140-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-141-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-142-0x0000000002B20000-0x0000000002F13000-memory.dmp
      Filesize

      3.9MB

    • memory/1928-145-0x0000000002F20000-0x0000000003797000-memory.dmp
      Filesize

      8.5MB

    • memory/1928-143-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-144-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-146-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-148-0x0000000000400000-0x0000000000C91000-memory.dmp
      Filesize

      8.6MB

    • memory/1928-147-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-149-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-150-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-151-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-161-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-153-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-154-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-155-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-156-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-163-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-122-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-159-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-160-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-152-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-120-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-123-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-164-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-165-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-166-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-167-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-168-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-169-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-171-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-170-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-172-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-173-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-174-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-176-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-175-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-177-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-178-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-179-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-180-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-181-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-182-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-183-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-184-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-185-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-186-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-187-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-250-0x0000000000400000-0x0000000000C91000-memory.dmp
      Filesize

      8.6MB

    • memory/1928-162-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/1928-121-0x0000000077D70000-0x0000000077EFE000-memory.dmp
      Filesize

      1.6MB

    • memory/4260-307-0x0000000000400000-0x0000000000C91000-memory.dmp
      Filesize

      8.6MB

    • memory/4260-297-0x0000000000400000-0x0000000000C91000-memory.dmp
      Filesize

      8.6MB

    • memory/4260-294-0x0000000002AA0000-0x0000000002E99000-memory.dmp
      Filesize

      4.0MB

    • memory/4612-299-0x0000000000000000-mapping.dmp
    • memory/4672-301-0x0000000000000000-mapping.dmp
    • memory/4672-329-0x0000000002D00000-0x00000000030EA000-memory.dmp
      Filesize

      3.9MB

    • memory/4672-334-0x0000000000400000-0x0000000000C91000-memory.dmp
      Filesize

      8.6MB

    • memory/4672-383-0x0000000002D00000-0x00000000030EA000-memory.dmp
      Filesize

      3.9MB

    • memory/4672-384-0x0000000000400000-0x0000000000C91000-memory.dmp
      Filesize

      8.6MB

    • memory/4740-298-0x0000000000000000-mapping.dmp