Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    30-11-2022 16:02

General

  • Target

    159d09cdbd90e5ce221f9ca7fd30646268cb2521d4279d707b346602b0eda59d.exe

  • Size

    683KB

  • MD5

    4defc86e258d002b2c01eda4822d6331

  • SHA1

    b6aa5ccd6722d8c7c55536854438e4de9d713bf5

  • SHA256

    159d09cdbd90e5ce221f9ca7fd30646268cb2521d4279d707b346602b0eda59d

  • SHA512

    699b6f4435c77aeab071dd151bb5b38f5e34384022f31d75904b009900113f4cc26f66bfda28f7540293fac7715bd21d985bb72294875fa3ee3886123008ecce

  • SSDEEP

    12288:4Szm0W4DTPa1RzO3Wmb++3k8O/l9EUJceUKdi3HIn7Ai+/TbMRTYIc:4Km0WEPa3O3WER3zi9cMEXTb5I

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    desmond.mur@yandex.com
  • Password:
    yellow147

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 5 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 10 IoCs
  • 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 3 IoCs

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

  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\159d09cdbd90e5ce221f9ca7fd30646268cb2521d4279d707b346602b0eda59d.exe
    "C:\Users\Admin\AppData\Local\Temp\159d09cdbd90e5ce221f9ca7fd30646268cb2521d4279d707b346602b0eda59d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1048
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\Users\Admin\AppData\Local\Temp\159d09cdbd90e5ce221f9ca7fd30646268cb2521d4279d707b346602b0eda59d.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1756
      • 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:1608
      • 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:764

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scripting

    1
    T1064

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Scripting

    1
    T1064

    Modify Registry

    1
    T1112

    Collection

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • memory/764-66-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/764-75-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/764-71-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/764-70-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/764-67-0x0000000000442628-mapping.dmp
    • memory/1048-54-0x0000000076171000-0x0000000076173000-memory.dmp
      Filesize

      8KB

    • memory/1608-59-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1608-65-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1608-63-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1608-60-0x0000000000411654-mapping.dmp
    • memory/1608-73-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1756-64-0x0000000000776000-0x0000000000787000-memory.dmp
      Filesize

      68KB

    • memory/1756-58-0x0000000074950000-0x0000000074EFB000-memory.dmp
      Filesize

      5.7MB

    • memory/1756-72-0x0000000000776000-0x0000000000787000-memory.dmp
      Filesize

      68KB

    • memory/1756-57-0x0000000074950000-0x0000000074EFB000-memory.dmp
      Filesize

      5.7MB

    • memory/1756-55-0x0000000000480B9E-mapping.dmp