Analysis

  • max time kernel
    185s
  • max time network
    230s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    30-11-2022 19:04

General

  • Target

    fc87f79da45a9ffcf0a3284798c6d491d009372d5b3782dbdd6fd7f8be01a327.exe

  • Size

    780KB

  • MD5

    43153f4f79278075981dbb98b580d74f

  • SHA1

    2455e4217cb8fbd4ebfaa16330558dc128adda1e

  • SHA256

    fc87f79da45a9ffcf0a3284798c6d491d009372d5b3782dbdd6fd7f8be01a327

  • SHA512

    be2018eaf2a61211d85734faf0927f39486965d4cdce24e72ad81f2d0a9c82ea04c7753d16bd92b65a5ea92b4f0b54f43ab18e24f8c55b8a269d582c025af123

  • SSDEEP

    24576:wR/SQVi7i3JFLMEhQQDhoDl4uInnotriI:ci7qLjGmoDlV2g+I

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.vivaldi.net
  • Port:
    587
  • Username:
    smithdean@vivaldi.net
  • Password:
    25194e1936feD$

Signatures

  • HawkEye

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

  • Beds Protector Packer 1 IoCs

    Detects Beds Protector packer used to load .NET malware.

  • NirSoft MailPassView 11 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 10 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 15 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 2 IoCs

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

  • Suspicious use of SetThreadContext 3 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fc87f79da45a9ffcf0a3284798c6d491d009372d5b3782dbdd6fd7f8be01a327.exe
    "C:\Users\Admin\AppData\Local\Temp\fc87f79da45a9ffcf0a3284798c6d491d009372d5b3782dbdd6fd7f8be01a327.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1152
    • C:\Users\Admin\AppData\Local\Temp\fc87f79da45a9ffcf0a3284798c6d491d009372d5b3782dbdd6fd7f8be01a327.exe
      "C:\Users\Admin\AppData\Local\Temp\fc87f79da45a9ffcf0a3284798c6d491d009372d5b3782dbdd6fd7f8be01a327.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1928
      • 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:1936
      • 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:1800

    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

    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/1152-54-0x0000000001190000-0x000000000125A000-memory.dmp
      Filesize

      808KB

    • memory/1152-55-0x0000000076201000-0x0000000076203000-memory.dmp
      Filesize

      8KB

    • memory/1152-56-0x0000000000BA0000-0x0000000000C58000-memory.dmp
      Filesize

      736KB

    • memory/1152-57-0x00000000006B0000-0x00000000006C6000-memory.dmp
      Filesize

      88KB

    • memory/1800-86-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1800-84-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1800-81-0x0000000000442628-mapping.dmp
    • memory/1800-80-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1928-71-0x0000000000530000-0x0000000000538000-memory.dmp
      Filesize

      32KB

    • memory/1928-64-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1928-69-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1928-65-0x0000000000480BBE-mapping.dmp
    • memory/1928-87-0x0000000000DB5000-0x0000000000DC6000-memory.dmp
      Filesize

      68KB

    • memory/1928-58-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1928-59-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1928-77-0x0000000000DB5000-0x0000000000DC6000-memory.dmp
      Filesize

      68KB

    • memory/1928-61-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1928-63-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1928-67-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1936-79-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1936-78-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1936-76-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1936-73-0x0000000000411654-mapping.dmp
    • memory/1936-72-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB