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Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230621-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/06/2023, 14:08

General

  • Target

    DaHostexeexeexe.exe

  • Size

    299KB

  • MD5

    dabf4bf05dadea76f0a7b346eee48844

  • SHA1

    1ea751f2c11f8f57f80cdc30826e38a551761828

  • SHA256

    4fce1d0099d746c09f6e7a8ae41882cbb95070ab24843b1516b8a74ce65d3701

  • SHA512

    8dc5a9d442fd6b95ab3a1a682ad80451131da2e5f74cc741b4bd4badfbbb31f002098c79c62ef77c4677703aefc2a698e2f97becd94b1ac0d58cd71629b73f23

  • SSDEEP

    3072:12zYpE8kiiX63a0mkBxKvQ5RN3vKdjSj0mRLRLh7EkHot:cMO8kWK0mkTKo5RpvUcp9Ew

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://suprememax.ga/

http://bloomberg.ga/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Executes dropped EXE 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 16 IoCs
  • Suspicious use of WriteProcessMemory 25 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.

  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DaHostexeexeexe.exe
    "C:\Users\Admin\AppData\Local\Temp\DaHostexeexeexe.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:4232
  • C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    1⤵
    • Accesses Microsoft Outlook profiles
    • outlook_office_path
    • outlook_win_path
    PID:2496
  • C:\Windows\explorer.exe
    C:\Windows\explorer.exe
    1⤵
      PID:4556
    • C:\Windows\SysWOW64\explorer.exe
      C:\Windows\SysWOW64\explorer.exe
      1⤵
        PID:1784
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        1⤵
          PID:4056
        • C:\Windows\explorer.exe
          C:\Windows\explorer.exe
          1⤵
            PID:1760
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            1⤵
              PID:3608
            • C:\Windows\explorer.exe
              C:\Windows\explorer.exe
              1⤵
                PID:4608
              • C:\Users\Admin\AppData\Roaming\gvaedvd
                C:\Users\Admin\AppData\Roaming\gvaedvd
                1⤵
                • Executes dropped EXE
                • Checks SCSI registry key(s)
                • Suspicious behavior: MapViewOfSection
                PID:3040

              Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\Users\Admin\AppData\Roaming\gvaedvd

                Filesize

                299KB

                MD5

                dabf4bf05dadea76f0a7b346eee48844

                SHA1

                1ea751f2c11f8f57f80cdc30826e38a551761828

                SHA256

                4fce1d0099d746c09f6e7a8ae41882cbb95070ab24843b1516b8a74ce65d3701

                SHA512

                8dc5a9d442fd6b95ab3a1a682ad80451131da2e5f74cc741b4bd4badfbbb31f002098c79c62ef77c4677703aefc2a698e2f97becd94b1ac0d58cd71629b73f23

              • C:\Users\Admin\AppData\Roaming\gvaedvd

                Filesize

                299KB

                MD5

                dabf4bf05dadea76f0a7b346eee48844

                SHA1

                1ea751f2c11f8f57f80cdc30826e38a551761828

                SHA256

                4fce1d0099d746c09f6e7a8ae41882cbb95070ab24843b1516b8a74ce65d3701

                SHA512

                8dc5a9d442fd6b95ab3a1a682ad80451131da2e5f74cc741b4bd4badfbbb31f002098c79c62ef77c4677703aefc2a698e2f97becd94b1ac0d58cd71629b73f23

              • memory/1760-177-0x0000000000410000-0x000000000041F000-memory.dmp

                Filesize

                60KB

              • memory/1760-176-0x0000000000420000-0x0000000000429000-memory.dmp

                Filesize

                36KB

              • memory/1760-175-0x0000000000410000-0x000000000041F000-memory.dmp

                Filesize

                60KB

              • memory/1760-185-0x0000000000420000-0x0000000000429000-memory.dmp

                Filesize

                36KB

              • memory/1784-171-0x00000000008A0000-0x00000000008AB000-memory.dmp

                Filesize

                44KB

              • memory/1784-170-0x00000000008A0000-0x00000000008AB000-memory.dmp

                Filesize

                44KB

              • memory/2496-146-0x0000000000820000-0x000000000088B000-memory.dmp

                Filesize

                428KB

              • memory/2496-169-0x0000000000820000-0x000000000088B000-memory.dmp

                Filesize

                428KB

              • memory/2496-148-0x0000000000820000-0x000000000088B000-memory.dmp

                Filesize

                428KB

              • memory/2496-147-0x0000000000890000-0x0000000000910000-memory.dmp

                Filesize

                512KB

              • memory/3040-194-0x0000000000400000-0x0000000000930000-memory.dmp

                Filesize

                5.2MB

              • memory/3224-191-0x0000000007250000-0x0000000007266000-memory.dmp

                Filesize

                88KB

              • memory/3224-135-0x0000000000C60000-0x0000000000C76000-memory.dmp

                Filesize

                88KB

              • memory/3608-186-0x0000000000FE0000-0x0000000000FE5000-memory.dmp

                Filesize

                20KB

              • memory/3608-179-0x0000000000FE0000-0x0000000000FE5000-memory.dmp

                Filesize

                20KB

              • memory/3608-180-0x0000000000FD0000-0x0000000000FD9000-memory.dmp

                Filesize

                36KB

              • memory/3608-178-0x0000000000FD0000-0x0000000000FD9000-memory.dmp

                Filesize

                36KB

              • memory/4056-184-0x0000000000830000-0x0000000000837000-memory.dmp

                Filesize

                28KB

              • memory/4056-174-0x0000000000820000-0x000000000082B000-memory.dmp

                Filesize

                44KB

              • memory/4056-173-0x0000000000830000-0x0000000000837000-memory.dmp

                Filesize

                28KB

              • memory/4056-172-0x0000000000820000-0x000000000082B000-memory.dmp

                Filesize

                44KB

              • memory/4232-133-0x0000000000BD0000-0x0000000000BE5000-memory.dmp

                Filesize

                84KB

              • memory/4232-136-0x0000000000400000-0x0000000000930000-memory.dmp

                Filesize

                5.2MB

              • memory/4232-134-0x0000000000AB0000-0x0000000000AB9000-memory.dmp

                Filesize

                36KB

              • memory/4556-153-0x0000000000570000-0x000000000057C000-memory.dmp

                Filesize

                48KB

              • memory/4556-152-0x0000000000570000-0x000000000057C000-memory.dmp

                Filesize

                48KB

              • memory/4608-181-0x0000000000180000-0x000000000018C000-memory.dmp

                Filesize

                48KB

              • memory/4608-182-0x0000000000190000-0x0000000000196000-memory.dmp

                Filesize

                24KB

              • memory/4608-183-0x0000000000180000-0x000000000018C000-memory.dmp

                Filesize

                48KB

              • memory/4608-187-0x0000000000190000-0x0000000000196000-memory.dmp

                Filesize

                24KB