Analysis

  • max time kernel
    222s
  • max time network
    376s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 19:12

General

  • Target

    b5fbe23d40132f604f55b8088574b00e7baf938b13fe169950be2818d0bb1a5d.exe

  • Size

    792KB

  • MD5

    9cd158e16cee8e868537481e9fd01f0a

  • SHA1

    df648e3fdacab3335678a5ca420605295181c202

  • SHA256

    b5fbe23d40132f604f55b8088574b00e7baf938b13fe169950be2818d0bb1a5d

  • SHA512

    3387762c361ab02e8df8adf9437c613c5e68c172863c50e22b15d04aec637843788586760a0d0521594fd03e3b2ee3caff777f732eeba5b39d7711ecdc897530

  • SSDEEP

    12288:A7e8HjE13OymeOacfIM6f8tp40yDddRUCGn//RZyAiwJqVLg1:A6ncfkcacRYMCLg1

Malware Config

Signatures

  • HawkEye

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

  • NirSoft MailPassView 11 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 11 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 16 IoCs
  • 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 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
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 4 IoCs
  • NTFS ADS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b5fbe23d40132f604f55b8088574b00e7baf938b13fe169950be2818d0bb1a5d.exe
    "C:\Users\Admin\AppData\Local\Temp\b5fbe23d40132f604f55b8088574b00e7baf938b13fe169950be2818d0bb1a5d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:268
    • C:\Users\Admin\AppData\Local\Temp\b5fbe23d40132f604f55b8088574b00e7baf938b13fe169950be2818d0bb1a5d.exe
      "C:\Users\Admin\AppData\Local\Temp\b5fbe23d40132f604f55b8088574b00e7baf938b13fe169950be2818d0bb1a5d.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • NTFS ADS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1968
      • 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:1508
      • 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:1564
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c echo [zoneTransfer]ZoneID = 2 > C:\Users\Admin\AppData\Local\Temp\b5fbe23d40132f604f55b8088574b00e7baf938b13fe169950be2818d0bb1a5d.exe:Zone.Identifier & exit
        2⤵
        • NTFS ADS
        PID:1068

    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

    2
    T1112

    Install Root Certificate

    1
    T1130

    Credential Access

    Credentials in Files

    1
    T1081

    Discovery

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    1
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\b5fbe23d40132f604f55b8088574b00e7baf938b13fe169950be2818d0bb1a5d.exe
      Filesize

      792KB

      MD5

      9cd158e16cee8e868537481e9fd01f0a

      SHA1

      df648e3fdacab3335678a5ca420605295181c202

      SHA256

      b5fbe23d40132f604f55b8088574b00e7baf938b13fe169950be2818d0bb1a5d

      SHA512

      3387762c361ab02e8df8adf9437c613c5e68c172863c50e22b15d04aec637843788586760a0d0521594fd03e3b2ee3caff777f732eeba5b39d7711ecdc897530

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

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • memory/268-74-0x0000000074550000-0x0000000074AFB000-memory.dmp
      Filesize

      5.7MB

    • memory/268-55-0x0000000074550000-0x0000000074AFB000-memory.dmp
      Filesize

      5.7MB

    • memory/268-54-0x0000000075D11000-0x0000000075D13000-memory.dmp
      Filesize

      8KB

    • memory/268-75-0x0000000074550000-0x0000000074AFB000-memory.dmp
      Filesize

      5.7MB

    • memory/1068-72-0x0000000000000000-mapping.dmp
    • memory/1508-78-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1508-79-0x0000000000411654-mapping.dmp
    • memory/1508-82-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1508-85-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1508-84-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1564-91-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1564-86-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1564-87-0x0000000000442628-mapping.dmp
    • memory/1564-90-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1564-94-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1968-66-0x0000000000480BBE-mapping.dmp
    • memory/1968-76-0x0000000074550000-0x0000000074AFB000-memory.dmp
      Filesize

      5.7MB

    • memory/1968-83-0x00000000006B5000-0x00000000006C6000-memory.dmp
      Filesize

      68KB

    • memory/1968-73-0x0000000074550000-0x0000000074AFB000-memory.dmp
      Filesize

      5.7MB

    • memory/1968-70-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1968-68-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1968-64-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1968-62-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1968-59-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1968-92-0x00000000006B5000-0x00000000006C6000-memory.dmp
      Filesize

      68KB

    • memory/1968-57-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1968-56-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB