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Resubmissions

05/02/2025, 07:30

250205-jb9afaxrdl 10

05/02/2025, 07:08

250205-hx7s3axlak 10

01/10/2022, 23:07

221001-235ensceam 10

Analysis

  • max time kernel
    156s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/10/2022, 23:07

General

  • Target

    0314ff92c271ae0a6a2c0d8d166fa32e0bd0f5625a2013a8fe7c8e9247102b07.exe

  • Size

    582KB

  • MD5

    6ee8965f23ab498defe80b79ab2ca52c

  • SHA1

    0d74605007a81bf44052dcf43385b236d9401c66

  • SHA256

    0314ff92c271ae0a6a2c0d8d166fa32e0bd0f5625a2013a8fe7c8e9247102b07

  • SHA512

    9a2461be0b72addcff49e91bdb030a12a2de3ce21125b0fc1061f906c3c4790ebf3ea9495c87d24aa5c4e6619b5f558738346fe102f8bc3278c4431557f969d3

  • SSDEEP

    12288:3w3BadD1/+wudvYWgktZiE0SJObe2HhcduQ6H6fI:GadVpupYWgktZigsS2Haub6

Malware Config

Extracted

Family

darkcomet

Botnet

DataProtector13.05.2013

C2

vierus330.no-ip.org:9751

Mutex

DCMIN_MUTEX-P9NPCV7

Attributes
  • gencode

    Ch5FEfuRL0mp

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops desktop.ini file(s) 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Program crash 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0314ff92c271ae0a6a2c0d8d166fa32e0bd0f5625a2013a8fe7c8e9247102b07.exe
    "C:\Users\Admin\AppData\Local\Temp\0314ff92c271ae0a6a2c0d8d166fa32e0bd0f5625a2013a8fe7c8e9247102b07.exe"
    1⤵
    • Checks computer location settings
    • Drops desktop.ini file(s)
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4388
    • C:\Windows\SysWOW64\svchost.exe
      "C:\Windows\System32\svchost.exe"
      2⤵
        PID:3108
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3108 -s 524
          3⤵
          • Program crash
          PID:3256
      • C:\Users\Admin\AppData\Local\Temp\cmiadapter.exe
        "C:\Users\Admin\AppData\Local\Temp\cmiadapter.exe"
        2⤵
        • Executes dropped EXE
        • Checks computer location settings
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4212
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /v "Shell" /d "C:\Windows\explorer.exe, C:\Users\Admin\AppData\Local\Temp\cmiadapter.exe" /f
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2528
          • C:\Windows\SysWOW64\reg.exe
            reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /v "Shell" /d "C:\Windows\explorer.exe, C:\Users\Admin\AppData\Local\Temp\cmiadapter.exe" /f
            4⤵
            • Modifies WinLogon for persistence
            PID:392
        • C:\Users\Admin\AppData\Local\Temp\PrintConfig.exe
          "C:\Users\Admin\AppData\Local\Temp\PrintConfig.exe"
          3⤵
          • Executes dropped EXE
          • Checks computer location settings
          • Suspicious use of SetThreadContext
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:764
          • C:\Windows\SysWOW64\svchost.exe
            "C:\Windows\System32\svchost.exe"
            4⤵
              PID:2876
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2876 -s 536
                5⤵
                • Program crash
                PID:1536
            • C:\Users\Admin\AppData\Local\Temp\cmiadapter.exe
              "C:\Users\Admin\AppData\Local\Temp\cmiadapter.exe"
              4⤵
              • Executes dropped EXE
              • Suspicious use of AdjustPrivilegeToken
              PID:4864
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3108 -ip 3108
        1⤵
          PID:2340
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2876 -ip 2876
          1⤵
            PID:980

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\cmiadapter.exe.log

            Filesize

            128B

            MD5

            a5dcc7c9c08af7dddd82be5b036a4416

            SHA1

            4f998ca1526d199e355ffb435bae111a2779b994

            SHA256

            e24033ceec97fd03402b03acaaabd1d1e378e83bb1683afbccac760e00f8ead5

            SHA512

            56035de734836c0c39f0b48641c51c26adb6e79c6c65e23ca96603f71c95b8673e2ef853146e87efc899dd1878d0bbc2c82d91fbf0fce81c552048e986f9bb5a

          • C:\Users\Admin\AppData\Local\Temp\PrintConfig.exe

            Filesize

            582KB

            MD5

            6ee8965f23ab498defe80b79ab2ca52c

            SHA1

            0d74605007a81bf44052dcf43385b236d9401c66

            SHA256

            0314ff92c271ae0a6a2c0d8d166fa32e0bd0f5625a2013a8fe7c8e9247102b07

            SHA512

            9a2461be0b72addcff49e91bdb030a12a2de3ce21125b0fc1061f906c3c4790ebf3ea9495c87d24aa5c4e6619b5f558738346fe102f8bc3278c4431557f969d3

          • C:\Users\Admin\AppData\Local\Temp\PrintConfig.exe

            Filesize

            582KB

            MD5

            6ee8965f23ab498defe80b79ab2ca52c

            SHA1

            0d74605007a81bf44052dcf43385b236d9401c66

            SHA256

            0314ff92c271ae0a6a2c0d8d166fa32e0bd0f5625a2013a8fe7c8e9247102b07

            SHA512

            9a2461be0b72addcff49e91bdb030a12a2de3ce21125b0fc1061f906c3c4790ebf3ea9495c87d24aa5c4e6619b5f558738346fe102f8bc3278c4431557f969d3

          • C:\Users\Admin\AppData\Local\Temp\cmiadapter.exe

            Filesize

            16KB

            MD5

            c6c51cca0adc05ece4e02e83476a50b9

            SHA1

            dee0bc2c12ef7e5daec14939556b436d626eff25

            SHA256

            af5a14f516166a547c8918005d1a7bdf411e248ae9b49d90ee7b50773cd24db2

            SHA512

            389c42c8c43e60b92427195c572e68e42e56bbf47f21b9fb4d5d4ca5d3ff6d7d69f06538b6852523ebc8b4a3fd0a561f1d962c493890c539c08217a7a22a5dc0

          • C:\Users\Admin\AppData\Local\Temp\cmiadapter.exe

            Filesize

            16KB

            MD5

            c6c51cca0adc05ece4e02e83476a50b9

            SHA1

            dee0bc2c12ef7e5daec14939556b436d626eff25

            SHA256

            af5a14f516166a547c8918005d1a7bdf411e248ae9b49d90ee7b50773cd24db2

            SHA512

            389c42c8c43e60b92427195c572e68e42e56bbf47f21b9fb4d5d4ca5d3ff6d7d69f06538b6852523ebc8b4a3fd0a561f1d962c493890c539c08217a7a22a5dc0

          • C:\Users\Admin\AppData\Local\Temp\cmiadapter.exe

            Filesize

            16KB

            MD5

            c6c51cca0adc05ece4e02e83476a50b9

            SHA1

            dee0bc2c12ef7e5daec14939556b436d626eff25

            SHA256

            af5a14f516166a547c8918005d1a7bdf411e248ae9b49d90ee7b50773cd24db2

            SHA512

            389c42c8c43e60b92427195c572e68e42e56bbf47f21b9fb4d5d4ca5d3ff6d7d69f06538b6852523ebc8b4a3fd0a561f1d962c493890c539c08217a7a22a5dc0

          • memory/764-159-0x0000000074AD0000-0x0000000075081000-memory.dmp

            Filesize

            5.7MB

          • memory/764-158-0x0000000074AD0000-0x0000000075081000-memory.dmp

            Filesize

            5.7MB

          • memory/2876-175-0x0000000000800000-0x00000000008B2000-memory.dmp

            Filesize

            712KB

          • memory/2876-174-0x0000000000800000-0x00000000008B2000-memory.dmp

            Filesize

            712KB

          • memory/2876-169-0x0000000000800000-0x00000000008B2000-memory.dmp

            Filesize

            712KB

          • memory/3108-147-0x0000000000600000-0x00000000006B2000-memory.dmp

            Filesize

            712KB

          • memory/3108-141-0x0000000000600000-0x00000000006B2000-memory.dmp

            Filesize

            712KB

          • memory/3108-136-0x0000000000600000-0x00000000006B2000-memory.dmp

            Filesize

            712KB

          • memory/3108-146-0x0000000000600000-0x00000000006B2000-memory.dmp

            Filesize

            712KB

          • memory/4212-151-0x0000000074AD0000-0x0000000075081000-memory.dmp

            Filesize

            5.7MB

          • memory/4212-160-0x0000000074AD0000-0x0000000075081000-memory.dmp

            Filesize

            5.7MB

          • memory/4212-152-0x0000000074AD0000-0x0000000075081000-memory.dmp

            Filesize

            5.7MB

          • memory/4388-161-0x0000000074AD0000-0x0000000075081000-memory.dmp

            Filesize

            5.7MB

          • memory/4388-132-0x0000000074AD0000-0x0000000075081000-memory.dmp

            Filesize

            5.7MB

          • memory/4388-133-0x0000000074AD0000-0x0000000075081000-memory.dmp

            Filesize

            5.7MB

          • memory/4864-179-0x0000000074AD0000-0x0000000075081000-memory.dmp

            Filesize

            5.7MB

          • memory/4864-180-0x0000000074AD0000-0x0000000075081000-memory.dmp

            Filesize

            5.7MB