Analysis

  • max time kernel
    124s
  • max time network
    184s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-07-2022 14:20

General

  • Target

    836a169ec95d151c273829d47fcec0f4014f540686002687d0beb668e762f3e8.exe

  • Size

    633KB

  • MD5

    42cedf3737858ae589d9d230485d5978

  • SHA1

    c0c11971657a3979f4146d912a0aafe941a55207

  • SHA256

    836a169ec95d151c273829d47fcec0f4014f540686002687d0beb668e762f3e8

  • SHA512

    2c80c12e7a350b1808294970947334590c9c4ff37b0989530a0e8789979c242e593558aa6446f9a460d1fc7af6d0554e731f96bcb719f39df78a29ac6c057d9e

Malware Config

Signatures

  • HawkEye

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

  • NirSoft MailPassView 6 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 7 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 11 IoCs
  • Executes dropped EXE 2 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 1 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 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\836a169ec95d151c273829d47fcec0f4014f540686002687d0beb668e762f3e8.exe
    "C:\Users\Admin\AppData\Local\Temp\836a169ec95d151c273829d47fcec0f4014f540686002687d0beb668e762f3e8.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3316
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\RarSFX0\fud.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:616
      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\mhaw.sfx.exe
        mhaw.sfx.exe -p126 -dC:\Users\Admin\AppData\Local\Temp
        3⤵
        • Executes dropped EXE
        • Checks computer location settings
        • Suspicious use of WriteProcessMemory
        PID:5044
        • C:\Users\Admin\AppData\Local\Temp\RarSFX1\mhaw.exe
          "C:\Users\Admin\AppData\Local\Temp\RarSFX1\mhaw.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2228
          • 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"
            5⤵
            • Accesses Microsoft Outlook accounts
            PID:2312
          • 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"
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:3652

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\fud.bat

    Filesize

    27B

    MD5

    278333e7bebe514e82777405c98db802

    SHA1

    67936482d1b46730345a062bb83f639649cc42bc

    SHA256

    fa38b9a45c3c76526aba430d8325107305c3a3ab1280ed248a346edbbb8f2efe

    SHA512

    cabf91987aaaec0f031a564c488dc410c6a8ce0fc477fd0088d60785a3b2dca31b8eb3268e2c30cfa76d15a719d0b9b507beee8130bccd587bca73b91f5aaa92

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\mhaw.sfx.exe

    Filesize

    506KB

    MD5

    d5ec2d8dd5c69bdab75e85e1b7ad3785

    SHA1

    09afa7be61ef4fdfe6eaaf944c40414e7e66aab6

    SHA256

    ad20ebbe21f85b9aa02787b974a36f8617e4adecf5858f5c17a29b35e8ba6878

    SHA512

    aefc72e55249087d58b021c39eca78742e0607aa5a1afbc69a8bab03e2c5a6a74c9ff22d00fb7544d9c9b3a3adbb09479c05bf890bd0c341d7e1f3c66f6b7829

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\mhaw.sfx.exe

    Filesize

    506KB

    MD5

    d5ec2d8dd5c69bdab75e85e1b7ad3785

    SHA1

    09afa7be61ef4fdfe6eaaf944c40414e7e66aab6

    SHA256

    ad20ebbe21f85b9aa02787b974a36f8617e4adecf5858f5c17a29b35e8ba6878

    SHA512

    aefc72e55249087d58b021c39eca78742e0607aa5a1afbc69a8bab03e2c5a6a74c9ff22d00fb7544d9c9b3a3adbb09479c05bf890bd0c341d7e1f3c66f6b7829

  • C:\Users\Admin\AppData\Local\Temp\RarSFX1\mhaw.exe

    Filesize

    520KB

    MD5

    a71903345e01f0e4fc7a61588231b135

    SHA1

    0047991b12692ab18a6c493ecfffab978fcb094c

    SHA256

    3d2c8eb7fadd0adfe5daf5eba397b21e4bb89d1e13295907c9da2deb75ff3458

    SHA512

    e3336fb9170fe41ca21090d84978e8c27c06bdbb94d6f549c82074aefcaa8626b287430710e56ee73eb58d6ea8d5e64530bcedb87e9d9c2d837beac4afb9b2cd

  • C:\Users\Admin\AppData\Local\Temp\RarSFX1\mhaw.exe

    Filesize

    520KB

    MD5

    a71903345e01f0e4fc7a61588231b135

    SHA1

    0047991b12692ab18a6c493ecfffab978fcb094c

    SHA256

    3d2c8eb7fadd0adfe5daf5eba397b21e4bb89d1e13295907c9da2deb75ff3458

    SHA512

    e3336fb9170fe41ca21090d84978e8c27c06bdbb94d6f549c82074aefcaa8626b287430710e56ee73eb58d6ea8d5e64530bcedb87e9d9c2d837beac4afb9b2cd

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

    Filesize

    3KB

    MD5

    f94dc819ca773f1e3cb27abbc9e7fa27

    SHA1

    9a7700efadc5ea09ab288544ef1e3cd876255086

    SHA256

    a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

    SHA512

    72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

  • memory/2228-138-0x0000000073600000-0x0000000073BB1000-memory.dmp

    Filesize

    5.7MB

  • memory/2228-139-0x0000000073600000-0x0000000073BB1000-memory.dmp

    Filesize

    5.7MB

  • memory/2312-141-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2312-143-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2312-144-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3652-146-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/3652-148-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/3652-149-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/3652-151-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB