Analysis

  • max time kernel
    151s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    09/11/2022, 19:23

General

  • Target
    5903b4d5a7cbd5816d4a9128cb69570b.exe
  • Size 1.4MB
  • Sample221109-x3scwsbec2
  • SHA256 e7f968d64655db242cdc6330cf399c3b5e635b63b2ba734d5e2c2eee5986e9be
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • eternity

C2
  • http://eternityms33k74r7iuuxfda4sqsiei3o3lbtr5cpalf6f4skszpruad.onion

Attributes
  • payload_urls

    https://raroford3242.xyz/myupdate.exe

    https://raroford3242.xyz/Sklmsstregens.vbs, https://raroford3242.xyz/remcexecrypt.exe, https://raroford3242.xyz/redlcryp.exe, https://raroford3242.xyz/racoocry.exe

    https://raroford3242.xyz/myupdate.exe

    https://raroford3242.xyz/myupdate.exe

Extracted

Family
  • remcos

Botnet
  • RemoteHost

C2
  • 157.90.145.151:1441

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    onhyxlqy.dat

  • keylog_flag

    false

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    gftlbusy-PLYPFW

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Extracted

Family
  • redline

C2
  • 157.90.145.151:14075

Attributes
  • auth_value

    197a8d2e248bee4495c3db7cbfdf6d3d

Signatures

  • Eternity

    Eternity Project is a malware kit offering an info stealer, clipper, worm, coin miner, ransomware, and DDoS bot.

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 4 IoCs
  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 12 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 3 IoCs
  • Program crash 3 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5903b4d5a7cbd5816d4a9128cb69570b.exe
    "C:\Users\Admin\AppData\Local\Temp\5903b4d5a7cbd5816d4a9128cb69570b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1688
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1044
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Sklmsstregens.vbs"
        3⤵
        • Blocklisted process makes network request
        • Modifies system certificate store
        PID:1712
      • C:\Users\Admin\AppData\Local\Temp\remcexecrypt.exe
        "C:\Users\Admin\AppData\Local\Temp\remcexecrypt.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:272
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
          4⤵
          • Suspicious use of SetWindowsHookEx
          PID:1428
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 272 -s 48
          4⤵
          • Loads dropped DLL
          • Program crash
          PID:880
      • C:\Users\Admin\AppData\Local\Temp\redlcryp.exe
        "C:\Users\Admin\AppData\Local\Temp\redlcryp.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1584
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1804
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1584 -s 48
          4⤵
          • Loads dropped DLL
          • Program crash
          PID:320
      • C:\Users\Admin\AppData\Local\Temp\racoocry.exe
        "C:\Users\Admin\AppData\Local\Temp\racoocry.exe"
        3⤵
        • Executes dropped EXE
        PID:1368
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1688 -s 48
      2⤵
      • Program crash
      PID:1136

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
        • Size 61KB
        • SHA256 40810e31f1b69075c727e6d557f9614d5880112895ff6f4df1767e87ae5640d1
        • MD5 SHA1 SHA512 SSDEEP

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 f959b09c5609e4923db206f4f2d827c48c41b30ac8d515cf3283fd00e58db3ae
        • MD5 SHA1 SHA512

        Sklmsstregens.vbs

        • Path C:\Users\Admin\AppData\Local\Temp\Sklmsstregens.vbs
        • Size 939KB
        • SHA256 4d1c7c5b60c2dc51f6d7d3b57546e9862c42831c6c150256a5048a7597cb7d97
        • MD5 SHA1 SHA512 SSDEEP

        racoocry.exe

        • Path C:\Users\Admin\AppData\Local\Temp\racoocry.exe
        • Size 166KB
        • SHA256 1773ee63e438de609db3d4805799fbd1616e39ec0806d6f11c6e806d1edb8161
        • MD5 SHA1 SHA512 SSDEEP

        redlcryp.exe

        • Path C:\Users\Admin\AppData\Local\Temp\redlcryp.exe
        • Size 472KB
        • SHA256 74ae0102c4050421d0c81c0e96627b39f2004e2456845a43cdf6280c06f4ee64
        • MD5 SHA1 SHA512 SSDEEP

        remcexecrypt.exe

        • Path C:\Users\Admin\AppData\Local\Temp\remcexecrypt.exe
        • Size 578KB
        • SHA256 6f6eb43adad7c1719aa85c3970b26b3d58e103ea4a830e7461be68fe22ee467b
        • MD5 SHA1 SHA512 SSDEEP

        racoocry.exe

        • Path \Users\Admin\AppData\Local\Temp\racoocry.exe
        • Size 166KB
        • SHA256 1773ee63e438de609db3d4805799fbd1616e39ec0806d6f11c6e806d1edb8161
        • MD5 SHA1 SHA512 SSDEEP

        racoocry.exe

        • Path \Users\Admin\AppData\Local\Temp\racoocry.exe
        • Size 166KB
        • SHA256 1773ee63e438de609db3d4805799fbd1616e39ec0806d6f11c6e806d1edb8161
        • MD5 SHA1 SHA512 SSDEEP

        redlcryp.exe

        • Path \Users\Admin\AppData\Local\Temp\redlcryp.exe
        • Size 472KB
        • SHA256 74ae0102c4050421d0c81c0e96627b39f2004e2456845a43cdf6280c06f4ee64
        • MD5 SHA1 SHA512 SSDEEP

        redlcryp.exe

        • Path \Users\Admin\AppData\Local\Temp\redlcryp.exe
        • Size 472KB
        • SHA256 74ae0102c4050421d0c81c0e96627b39f2004e2456845a43cdf6280c06f4ee64
        • MD5 SHA1 SHA512 SSDEEP

        redlcryp.exe

        • Path \Users\Admin\AppData\Local\Temp\redlcryp.exe
        • Size 472KB
        • SHA256 74ae0102c4050421d0c81c0e96627b39f2004e2456845a43cdf6280c06f4ee64
        • MD5 SHA1 SHA512 SSDEEP

        redlcryp.exe

        • Path \Users\Admin\AppData\Local\Temp\redlcryp.exe
        • Size 472KB
        • SHA256 74ae0102c4050421d0c81c0e96627b39f2004e2456845a43cdf6280c06f4ee64
        • MD5 SHA1 SHA512 SSDEEP

        redlcryp.exe

        • Path \Users\Admin\AppData\Local\Temp\redlcryp.exe
        • Size 472KB
        • SHA256 74ae0102c4050421d0c81c0e96627b39f2004e2456845a43cdf6280c06f4ee64
        • MD5 SHA1 SHA512 SSDEEP

        remcexecrypt.exe

        • Path \Users\Admin\AppData\Local\Temp\remcexecrypt.exe
        • Size 578KB
        • SHA256 6f6eb43adad7c1719aa85c3970b26b3d58e103ea4a830e7461be68fe22ee467b
        • MD5 SHA1 SHA512 SSDEEP

        remcexecrypt.exe

        • Path \Users\Admin\AppData\Local\Temp\remcexecrypt.exe
        • Size 578KB
        • SHA256 6f6eb43adad7c1719aa85c3970b26b3d58e103ea4a830e7461be68fe22ee467b
        • MD5 SHA1 SHA512 SSDEEP

        remcexecrypt.exe

        • Path \Users\Admin\AppData\Local\Temp\remcexecrypt.exe
        • Size 578KB
        • SHA256 6f6eb43adad7c1719aa85c3970b26b3d58e103ea4a830e7461be68fe22ee467b
        • MD5 SHA1 SHA512 SSDEEP

        remcexecrypt.exe

        • Path \Users\Admin\AppData\Local\Temp\remcexecrypt.exe
        • Size 578KB
        • SHA256 6f6eb43adad7c1719aa85c3970b26b3d58e103ea4a830e7461be68fe22ee467b
        • MD5 SHA1 SHA512 SSDEEP

        remcexecrypt.exe

        • Path \Users\Admin\AppData\Local\Temp\remcexecrypt.exe
        • Size 578KB
        • SHA256 6f6eb43adad7c1719aa85c3970b26b3d58e103ea4a830e7461be68fe22ee467b
        • MD5 SHA1 SHA512 SSDEEP

        memory/272-105-0x0000000000850000-0x00000000008E4000-memory.dmp

        memory/1044-63-0x0000000000400000-0x0000000000552000-memory.dmp

        memory/1044-83-0x00000000063C0000-0x000000000650A000-memory.dmp

        memory/1044-84-0x00000000058C0000-0x000000000593A000-memory.dmp

        memory/1044-85-0x0000000006580000-0x00000000066A2000-memory.dmp

        memory/1044-86-0x0000000000ED0000-0x0000000000EEA000-memory.dmp

        memory/1044-56-0x0000000000400000-0x0000000000552000-memory.dmp

        memory/1044-54-0x0000000000400000-0x0000000000552000-memory.dmp

        memory/1044-62-0x0000000000400000-0x0000000000552000-memory.dmp

        memory/1044-65-0x0000000075601000-0x0000000075603000-memory.dmp

        memory/1428-103-0x0000000000400000-0x000000000047F000-memory.dmp

        memory/1428-89-0x0000000000400000-0x000000000047F000-memory.dmp

        memory/1428-87-0x0000000000400000-0x000000000047F000-memory.dmp

        memory/1804-106-0x0000000000400000-0x0000000000460000-memory.dmp

        memory/1804-108-0x0000000000400000-0x0000000000460000-memory.dmp

        memory/1804-116-0x0000000000400000-0x0000000000460000-memory.dmp

        memory/1804-115-0x0000000000400000-0x0000000000460000-memory.dmp

        memory/1804-120-0x0000000000330000-0x0000000000336000-memory.dmp