Analysis

  • max time kernel
    159s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-11-2022 19:02

General

  • Target

    38e654c69f2de92cb79e7b4009559277438b27ad465d76ce21bfcdf601a6cd95.exe

  • Size

    580KB

  • MD5

    0484f772e045b1e8029d3cca90fea9c2

  • SHA1

    4dc084088bbe3ce8b00c578282539f0efa125cb4

  • SHA256

    38e654c69f2de92cb79e7b4009559277438b27ad465d76ce21bfcdf601a6cd95

  • SHA512

    f93da0eb01d1758c9ee8d66347c40989c46648df48b287f80faec0feb62828426b4934bcdc48e7ccedc66b3cc50cd64d5b64f6315f8a1619cb3ea86a7c7fb670

  • SSDEEP

    12288:r0Yyb5eyBc0I8aVbHtfu6oPFmz2JNQxi8WbxV450oM5B:r0/5fwxfGXJ+1uQVM

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.gmail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    dknenltgrbejvytn

Signatures

  • HawkEye

    HawkEye is a malware kit that has seen continuous development since at least 2013.

  • NirSoft MailPassView 5 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 6 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 10 IoCs
  • Executes dropped EXE 4 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 43 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\38e654c69f2de92cb79e7b4009559277438b27ad465d76ce21bfcdf601a6cd95.exe
    "C:\Users\Admin\AppData\Local\Temp\38e654c69f2de92cb79e7b4009559277438b27ad465d76ce21bfcdf601a6cd95.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4988
    • C:\Users\Admin\AppData\Local\Temp\38e654c69f2de92cb79e7b4009559277438b27ad465d76ce21bfcdf601a6cd95.exe
      "C:\Users\Admin\AppData\Local\Temp\38e654c69f2de92cb79e7b4009559277438b27ad465d76ce21bfcdf601a6cd95.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3980
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
        3⤵
        • Accesses Microsoft Outlook accounts
        PID:4720
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"
        3⤵
          PID:5096
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe"
        2⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3620
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
          C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
          3⤵
          • Executes dropped EXE
          • Checks computer location settings
          • Suspicious use of SetThreadContext
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4556
          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
            "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe"
            4⤵
            • Executes dropped EXE
            PID:3532
          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe
            "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe"
            4⤵
            • Executes dropped EXE
            • Adds Run key to start application
            • Suspicious use of AdjustPrivilegeToken
            PID:1964

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      224B

      MD5

      c19eb8c8e7a40e6b987f9d2ee952996e

      SHA1

      6fc3049855bc9100643e162511673c6df0f28bfb

      SHA256

      677e9e30350df17e2bc20fa9f7d730e9f7cc6e870d6520a345f5f7dc5b31f58a

      SHA512

      860713b4a787c2189ed12a47d4b68b60ac00c7a253cae52dd4eb9276dacafeae3a81906b6d0742c8ecfdfaa255777c445beb7c2a532f3c677a9903237ac97596

    • C:\Users\Admin\AppData\Local\Temp\holderwb.txt

      Filesize

      3KB

      MD5

      f94dc819ca773f1e3cb27abbc9e7fa27

      SHA1

      9a7700efadc5ea09ab288544ef1e3cd876255086

      SHA256

      a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

      SHA512

      72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

      Filesize

      580KB

      MD5

      0484f772e045b1e8029d3cca90fea9c2

      SHA1

      4dc084088bbe3ce8b00c578282539f0efa125cb4

      SHA256

      38e654c69f2de92cb79e7b4009559277438b27ad465d76ce21bfcdf601a6cd95

      SHA512

      f93da0eb01d1758c9ee8d66347c40989c46648df48b287f80faec0feb62828426b4934bcdc48e7ccedc66b3cc50cd64d5b64f6315f8a1619cb3ea86a7c7fb670

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

      Filesize

      580KB

      MD5

      0484f772e045b1e8029d3cca90fea9c2

      SHA1

      4dc084088bbe3ce8b00c578282539f0efa125cb4

      SHA256

      38e654c69f2de92cb79e7b4009559277438b27ad465d76ce21bfcdf601a6cd95

      SHA512

      f93da0eb01d1758c9ee8d66347c40989c46648df48b287f80faec0feb62828426b4934bcdc48e7ccedc66b3cc50cd64d5b64f6315f8a1619cb3ea86a7c7fb670

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

      Filesize

      580KB

      MD5

      0484f772e045b1e8029d3cca90fea9c2

      SHA1

      4dc084088bbe3ce8b00c578282539f0efa125cb4

      SHA256

      38e654c69f2de92cb79e7b4009559277438b27ad465d76ce21bfcdf601a6cd95

      SHA512

      f93da0eb01d1758c9ee8d66347c40989c46648df48b287f80faec0feb62828426b4934bcdc48e7ccedc66b3cc50cd64d5b64f6315f8a1619cb3ea86a7c7fb670

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

      Filesize

      8KB

      MD5

      44fe6d432dc0e3138b118d7e59858841

      SHA1

      669b99829ce3fb45c89fab670ede5130d8cc5f07

      SHA256

      21484c6668c3581e15e447bb2ebe2f3f7e6a5f9b383cbd990368fe8ea323419d

      SHA512

      1592165716ae7b5194b78e9732c214ce5f782431ab0a63e76e4dd56d250999307efdb6b7030909ef4a0ee70de5d573269bf6f4ab0685890930225815bfa04660

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

      Filesize

      8KB

      MD5

      44fe6d432dc0e3138b118d7e59858841

      SHA1

      669b99829ce3fb45c89fab670ede5130d8cc5f07

      SHA256

      21484c6668c3581e15e447bb2ebe2f3f7e6a5f9b383cbd990368fe8ea323419d

      SHA512

      1592165716ae7b5194b78e9732c214ce5f782431ab0a63e76e4dd56d250999307efdb6b7030909ef4a0ee70de5d573269bf6f4ab0685890930225815bfa04660

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

      Filesize

      8KB

      MD5

      44fe6d432dc0e3138b118d7e59858841

      SHA1

      669b99829ce3fb45c89fab670ede5130d8cc5f07

      SHA256

      21484c6668c3581e15e447bb2ebe2f3f7e6a5f9b383cbd990368fe8ea323419d

      SHA512

      1592165716ae7b5194b78e9732c214ce5f782431ab0a63e76e4dd56d250999307efdb6b7030909ef4a0ee70de5d573269bf6f4ab0685890930225815bfa04660

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

      Filesize

      8KB

      MD5

      44fe6d432dc0e3138b118d7e59858841

      SHA1

      669b99829ce3fb45c89fab670ede5130d8cc5f07

      SHA256

      21484c6668c3581e15e447bb2ebe2f3f7e6a5f9b383cbd990368fe8ea323419d

      SHA512

      1592165716ae7b5194b78e9732c214ce5f782431ab0a63e76e4dd56d250999307efdb6b7030909ef4a0ee70de5d573269bf6f4ab0685890930225815bfa04660

    • memory/1964-153-0x0000000000000000-mapping.dmp

    • memory/1964-158-0x0000000074D30000-0x00000000752E1000-memory.dmp

      Filesize

      5.7MB

    • memory/1964-164-0x0000000074D30000-0x00000000752E1000-memory.dmp

      Filesize

      5.7MB

    • memory/3532-157-0x0000000074D30000-0x00000000752E1000-memory.dmp

      Filesize

      5.7MB

    • memory/3532-150-0x0000000000000000-mapping.dmp

    • memory/3620-136-0x0000000000000000-mapping.dmp

    • memory/3620-142-0x0000000074D30000-0x00000000752E1000-memory.dmp

      Filesize

      5.7MB

    • memory/3620-140-0x0000000074D30000-0x00000000752E1000-memory.dmp

      Filesize

      5.7MB

    • memory/3620-149-0x0000000074D30000-0x00000000752E1000-memory.dmp

      Filesize

      5.7MB

    • memory/3980-141-0x0000000074D30000-0x00000000752E1000-memory.dmp

      Filesize

      5.7MB

    • memory/3980-134-0x0000000000000000-mapping.dmp

    • memory/3980-139-0x0000000074D30000-0x00000000752E1000-memory.dmp

      Filesize

      5.7MB

    • memory/3980-135-0x0000000000400000-0x0000000000484000-memory.dmp

      Filesize

      528KB

    • memory/4556-147-0x0000000074D30000-0x00000000752E1000-memory.dmp

      Filesize

      5.7MB

    • memory/4556-146-0x0000000074D30000-0x00000000752E1000-memory.dmp

      Filesize

      5.7MB

    • memory/4556-143-0x0000000000000000-mapping.dmp

    • memory/4720-163-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4720-159-0x0000000000000000-mapping.dmp

    • memory/4720-160-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4720-162-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4988-132-0x0000000074D30000-0x00000000752E1000-memory.dmp

      Filesize

      5.7MB

    • memory/4988-148-0x0000000074D30000-0x00000000752E1000-memory.dmp

      Filesize

      5.7MB

    • memory/4988-133-0x0000000074D30000-0x00000000752E1000-memory.dmp

      Filesize

      5.7MB

    • memory/5096-165-0x0000000000000000-mapping.dmp

    • memory/5096-166-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/5096-168-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/5096-169-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/5096-171-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB