Analysis

  • max time kernel
    151s
  • max time network
    98s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 18:40

General

  • Target

    a777dc76f8de9d1447220b5c10fcb043d1cf2294d9baefc769fa40642d68a8d1.exe

  • Size

    640KB

  • MD5

    6615e3fdf098a182b254fd943a62a474

  • SHA1

    790213ad034281437f7887f17a2ae97b73f8131f

  • SHA256

    a777dc76f8de9d1447220b5c10fcb043d1cf2294d9baefc769fa40642d68a8d1

  • SHA512

    3701811297f2e4d35ebf59fbbbe91b9d2cde597d7a8abf35651835557664cdd28fcd180d09a063f891f14cea6c26f0f8dc81e86f30fb509916b2c0474a07727e

  • SSDEEP

    12288:rFY0DADILZoNEFKED5oJx/Ij9FD/aWWhsaExq:rF/AyZgEcEKK9FD/anil

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.mail.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    general123

Signatures

  • HawkEye

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

  • NirSoft MailPassView 12 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 7 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 12 IoCs
  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 3 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 2 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.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a777dc76f8de9d1447220b5c10fcb043d1cf2294d9baefc769fa40642d68a8d1.exe
    "C:\Users\Admin\AppData\Local\Temp\a777dc76f8de9d1447220b5c10fcb043d1cf2294d9baefc769fa40642d68a8d1.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1116
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "GoogleUpdate" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\WinApp\GoogleUpdate.exe.lnk"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:800
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "GoogleUpdate" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\WinApp\GoogleUpdate.exe.lnk"
        3⤵
        • Adds Run key to start application
        PID:560
    • C:\Users\Admin\AppData\Local\Temp\a777dc76f8de9d1447220b5c10fcb043d1cf2294d9baefc769fa40642d68a8d1.exe
      "C:\Users\Admin\AppData\Local\Temp\a777dc76f8de9d1447220b5c10fcb043d1cf2294d9baefc769fa40642d68a8d1.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1000
      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1068
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          4⤵
          • Executes dropped EXE
          • Deletes itself
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:308
          • 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:1596

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

Discovery

System Information Discovery

1
T1082

Collection

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

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

    102B

    MD5

    c75d6d0d293ffb4995427e9aa537b095

    SHA1

    0fe0b1763179846ae78f0ceb8108a8a3ceb74698

    SHA256

    21ce126b4cf434ba1bf468087a69ce18945fb98ab91a0803e000cef191fb652c

    SHA512

    ec50a0cfeb2d09b242032fdaf44e3052f0ed04920587d387e6d27c1325cf00ba5abc9cb4d3770eaf56b3602a8bb8cb07edeeec76c9c933a45bae6476daee2af2

  • C:\Users\Admin\AppData\Roaming\Windows Update.exe
    Filesize

    640KB

    MD5

    6615e3fdf098a182b254fd943a62a474

    SHA1

    790213ad034281437f7887f17a2ae97b73f8131f

    SHA256

    a777dc76f8de9d1447220b5c10fcb043d1cf2294d9baefc769fa40642d68a8d1

    SHA512

    3701811297f2e4d35ebf59fbbbe91b9d2cde597d7a8abf35651835557664cdd28fcd180d09a063f891f14cea6c26f0f8dc81e86f30fb509916b2c0474a07727e

  • C:\Users\Admin\AppData\Roaming\Windows Update.exe
    Filesize

    640KB

    MD5

    6615e3fdf098a182b254fd943a62a474

    SHA1

    790213ad034281437f7887f17a2ae97b73f8131f

    SHA256

    a777dc76f8de9d1447220b5c10fcb043d1cf2294d9baefc769fa40642d68a8d1

    SHA512

    3701811297f2e4d35ebf59fbbbe91b9d2cde597d7a8abf35651835557664cdd28fcd180d09a063f891f14cea6c26f0f8dc81e86f30fb509916b2c0474a07727e

  • C:\Users\Admin\AppData\Roaming\Windows Update.exe
    Filesize

    640KB

    MD5

    6615e3fdf098a182b254fd943a62a474

    SHA1

    790213ad034281437f7887f17a2ae97b73f8131f

    SHA256

    a777dc76f8de9d1447220b5c10fcb043d1cf2294d9baefc769fa40642d68a8d1

    SHA512

    3701811297f2e4d35ebf59fbbbe91b9d2cde597d7a8abf35651835557664cdd28fcd180d09a063f891f14cea6c26f0f8dc81e86f30fb509916b2c0474a07727e

  • \Users\Admin\AppData\Roaming\WinApp\GoogleUpdate.exe
    Filesize

    640KB

    MD5

    6615e3fdf098a182b254fd943a62a474

    SHA1

    790213ad034281437f7887f17a2ae97b73f8131f

    SHA256

    a777dc76f8de9d1447220b5c10fcb043d1cf2294d9baefc769fa40642d68a8d1

    SHA512

    3701811297f2e4d35ebf59fbbbe91b9d2cde597d7a8abf35651835557664cdd28fcd180d09a063f891f14cea6c26f0f8dc81e86f30fb509916b2c0474a07727e

  • \Users\Admin\AppData\Roaming\Windows Update.exe
    Filesize

    640KB

    MD5

    6615e3fdf098a182b254fd943a62a474

    SHA1

    790213ad034281437f7887f17a2ae97b73f8131f

    SHA256

    a777dc76f8de9d1447220b5c10fcb043d1cf2294d9baefc769fa40642d68a8d1

    SHA512

    3701811297f2e4d35ebf59fbbbe91b9d2cde597d7a8abf35651835557664cdd28fcd180d09a063f891f14cea6c26f0f8dc81e86f30fb509916b2c0474a07727e

  • \Users\Admin\AppData\Roaming\Windows Update.exe
    Filesize

    640KB

    MD5

    6615e3fdf098a182b254fd943a62a474

    SHA1

    790213ad034281437f7887f17a2ae97b73f8131f

    SHA256

    a777dc76f8de9d1447220b5c10fcb043d1cf2294d9baefc769fa40642d68a8d1

    SHA512

    3701811297f2e4d35ebf59fbbbe91b9d2cde597d7a8abf35651835557664cdd28fcd180d09a063f891f14cea6c26f0f8dc81e86f30fb509916b2c0474a07727e

  • memory/308-90-0x000000000047E8EE-mapping.dmp
  • memory/308-107-0x0000000074DB0000-0x000000007535B000-memory.dmp
    Filesize

    5.7MB

  • memory/308-99-0x0000000074DB0000-0x000000007535B000-memory.dmp
    Filesize

    5.7MB

  • memory/560-60-0x0000000000000000-mapping.dmp
  • memory/800-59-0x0000000000000000-mapping.dmp
  • memory/1000-65-0x0000000000400000-0x0000000000484000-memory.dmp
    Filesize

    528KB

  • memory/1000-67-0x000000000047E8EE-mapping.dmp
  • memory/1000-70-0x0000000000400000-0x0000000000484000-memory.dmp
    Filesize

    528KB

  • memory/1000-73-0x0000000000400000-0x0000000000484000-memory.dmp
    Filesize

    528KB

  • memory/1000-66-0x0000000000400000-0x0000000000484000-memory.dmp
    Filesize

    528KB

  • memory/1000-80-0x0000000074800000-0x0000000074DAB000-memory.dmp
    Filesize

    5.7MB

  • memory/1000-64-0x0000000000400000-0x0000000000484000-memory.dmp
    Filesize

    528KB

  • memory/1000-62-0x0000000000400000-0x0000000000484000-memory.dmp
    Filesize

    528KB

  • memory/1000-61-0x0000000000400000-0x0000000000484000-memory.dmp
    Filesize

    528KB

  • memory/1068-76-0x0000000000000000-mapping.dmp
  • memory/1068-93-0x0000000074800000-0x0000000074DAB000-memory.dmp
    Filesize

    5.7MB

  • memory/1068-82-0x0000000000306000-0x0000000000317000-memory.dmp
    Filesize

    68KB

  • memory/1068-81-0x0000000074800000-0x0000000074DAB000-memory.dmp
    Filesize

    5.7MB

  • memory/1068-94-0x0000000000306000-0x0000000000317000-memory.dmp
    Filesize

    68KB

  • memory/1116-71-0x00000000003D6000-0x00000000003E7000-memory.dmp
    Filesize

    68KB

  • memory/1116-69-0x0000000074DB0000-0x000000007535B000-memory.dmp
    Filesize

    5.7MB

  • memory/1116-54-0x0000000076961000-0x0000000076963000-memory.dmp
    Filesize

    8KB

  • memory/1116-57-0x0000000074DB0000-0x000000007535B000-memory.dmp
    Filesize

    5.7MB

  • memory/1116-56-0x00000000003D6000-0x00000000003E7000-memory.dmp
    Filesize

    68KB

  • memory/1116-55-0x0000000074DB0000-0x000000007535B000-memory.dmp
    Filesize

    5.7MB

  • memory/1596-101-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1596-102-0x0000000000411654-mapping.dmp
  • memory/1596-105-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1596-106-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1596-108-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB