Analysis

  • max time kernel
    153s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 13:25

General

  • Target

    ac264beeee7dacdfbf13d69e27aa28dd80a788631691c15701627fe065de58be.exe

  • Size

    678KB

  • MD5

    19f021dafe19fecaa33c20ead99b69fe

  • SHA1

    09065b86b5f3066abc66de863950f1711108f067

  • SHA256

    ac264beeee7dacdfbf13d69e27aa28dd80a788631691c15701627fe065de58be

  • SHA512

    85ca1b2484991872c1f4c9d0f3ed8dca0f5019331057ba15063f06be3e91af553bacbac3525bfa21ce7188a92d8d69c6104d44a892bea65888e3cabfb56a1f52

  • SSDEEP

    12288:uu49EY7AmXkI10zsbyt5x+LE0QzaaGvm2V82FQpzBhSD8sBfZ0X3:uN2YwIsx+LFauV8TzBhSQsBmX

Malware Config

Extracted

Credentials

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

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.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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 2 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 43 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ac264beeee7dacdfbf13d69e27aa28dd80a788631691c15701627fe065de58be.exe
    "C:\Users\Admin\AppData\Local\Temp\ac264beeee7dacdfbf13d69e27aa28dd80a788631691c15701627fe065de58be.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2064
    • C:\Users\Admin\AppData\Local\Temp\ac264beeee7dacdfbf13d69e27aa28dd80a788631691c15701627fe065de58be.exe
      "C:\Users\Admin\AppData\Local\Temp\ac264beeee7dacdfbf13d69e27aa28dd80a788631691c15701627fe065de58be.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3928
      • 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:3472
      • 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:1984
      • 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:3900
        • 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:4792
          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
            "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe"
            4⤵
            • Executes dropped EXE
            PID:2396
          • 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:3200

    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

      678KB

      MD5

      19f021dafe19fecaa33c20ead99b69fe

      SHA1

      09065b86b5f3066abc66de863950f1711108f067

      SHA256

      ac264beeee7dacdfbf13d69e27aa28dd80a788631691c15701627fe065de58be

      SHA512

      85ca1b2484991872c1f4c9d0f3ed8dca0f5019331057ba15063f06be3e91af553bacbac3525bfa21ce7188a92d8d69c6104d44a892bea65888e3cabfb56a1f52

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

      Filesize

      678KB

      MD5

      19f021dafe19fecaa33c20ead99b69fe

      SHA1

      09065b86b5f3066abc66de863950f1711108f067

      SHA256

      ac264beeee7dacdfbf13d69e27aa28dd80a788631691c15701627fe065de58be

      SHA512

      85ca1b2484991872c1f4c9d0f3ed8dca0f5019331057ba15063f06be3e91af553bacbac3525bfa21ce7188a92d8d69c6104d44a892bea65888e3cabfb56a1f52

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

      Filesize

      678KB

      MD5

      19f021dafe19fecaa33c20ead99b69fe

      SHA1

      09065b86b5f3066abc66de863950f1711108f067

      SHA256

      ac264beeee7dacdfbf13d69e27aa28dd80a788631691c15701627fe065de58be

      SHA512

      85ca1b2484991872c1f4c9d0f3ed8dca0f5019331057ba15063f06be3e91af553bacbac3525bfa21ce7188a92d8d69c6104d44a892bea65888e3cabfb56a1f52

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

      Filesize

      6KB

      MD5

      0a471b54b2bb86b2a7bc0a2bc9008231

      SHA1

      4f5e60a7cc6d0b79bf1d238ce5af0670736fc67e

      SHA256

      040b2bba6e326169c3f236004fd8367e3e92b875fa79fc619ea7af747d90a235

      SHA512

      efe9db2dfbad40a66e78c6982a75a007ca3be573b912dab8b76af229f97a4620157cec2dbf527d87dbc79de7e020f30f9384cba48a3871a266f9fc016e20a9ac

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

      Filesize

      6KB

      MD5

      0a471b54b2bb86b2a7bc0a2bc9008231

      SHA1

      4f5e60a7cc6d0b79bf1d238ce5af0670736fc67e

      SHA256

      040b2bba6e326169c3f236004fd8367e3e92b875fa79fc619ea7af747d90a235

      SHA512

      efe9db2dfbad40a66e78c6982a75a007ca3be573b912dab8b76af229f97a4620157cec2dbf527d87dbc79de7e020f30f9384cba48a3871a266f9fc016e20a9ac

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

      Filesize

      6KB

      MD5

      0a471b54b2bb86b2a7bc0a2bc9008231

      SHA1

      4f5e60a7cc6d0b79bf1d238ce5af0670736fc67e

      SHA256

      040b2bba6e326169c3f236004fd8367e3e92b875fa79fc619ea7af747d90a235

      SHA512

      efe9db2dfbad40a66e78c6982a75a007ca3be573b912dab8b76af229f97a4620157cec2dbf527d87dbc79de7e020f30f9384cba48a3871a266f9fc016e20a9ac

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

      Filesize

      6KB

      MD5

      0a471b54b2bb86b2a7bc0a2bc9008231

      SHA1

      4f5e60a7cc6d0b79bf1d238ce5af0670736fc67e

      SHA256

      040b2bba6e326169c3f236004fd8367e3e92b875fa79fc619ea7af747d90a235

      SHA512

      efe9db2dfbad40a66e78c6982a75a007ca3be573b912dab8b76af229f97a4620157cec2dbf527d87dbc79de7e020f30f9384cba48a3871a266f9fc016e20a9ac

    • memory/1984-155-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1984-159-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1984-156-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1984-153-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1984-152-0x0000000000000000-mapping.dmp

    • memory/2064-132-0x00000000753E0000-0x0000000075991000-memory.dmp

      Filesize

      5.7MB

    • memory/2064-133-0x00000000753E0000-0x0000000075991000-memory.dmp

      Filesize

      5.7MB

    • memory/2064-161-0x00000000753E0000-0x0000000075991000-memory.dmp

      Filesize

      5.7MB

    • memory/2396-171-0x00000000753E0000-0x0000000075991000-memory.dmp

      Filesize

      5.7MB

    • memory/2396-169-0x00000000753E0000-0x0000000075991000-memory.dmp

      Filesize

      5.7MB

    • memory/2396-162-0x0000000000000000-mapping.dmp

    • memory/3200-165-0x0000000000000000-mapping.dmp

    • memory/3200-170-0x00000000753E0000-0x0000000075991000-memory.dmp

      Filesize

      5.7MB

    • memory/3200-172-0x00000000753E0000-0x0000000075991000-memory.dmp

      Filesize

      5.7MB

    • memory/3472-143-0x0000000000000000-mapping.dmp

    • memory/3472-147-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/3472-144-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/3472-146-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/3900-142-0x00000000753E0000-0x0000000075991000-memory.dmp

      Filesize

      5.7MB

    • memory/3900-160-0x00000000753E0000-0x0000000075991000-memory.dmp

      Filesize

      5.7MB

    • memory/3900-137-0x0000000000000000-mapping.dmp

    • memory/3900-140-0x00000000753E0000-0x0000000075991000-memory.dmp

      Filesize

      5.7MB

    • memory/3928-141-0x00000000753E0000-0x0000000075991000-memory.dmp

      Filesize

      5.7MB

    • memory/3928-136-0x00000000753E0000-0x0000000075991000-memory.dmp

      Filesize

      5.7MB

    • memory/3928-135-0x0000000000400000-0x0000000000484000-memory.dmp

      Filesize

      528KB

    • memory/3928-134-0x0000000000000000-mapping.dmp

    • memory/4792-157-0x00000000753E0000-0x0000000075991000-memory.dmp

      Filesize

      5.7MB

    • memory/4792-151-0x00000000753E0000-0x0000000075991000-memory.dmp

      Filesize

      5.7MB

    • memory/4792-148-0x0000000000000000-mapping.dmp