Analysis

  • max time kernel
    169s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 16:53

General

  • Target

    71ce6e3e9dbb3fa520424f0a2df95f2c687b80bff196b14dde39d49a34f020ce.exe

  • Size

    572KB

  • MD5

    d35f5933085af5bc45eeec09a80ed7e3

  • SHA1

    e0fe666310036a88efdcdd1b2612d4fd82703d2d

  • SHA256

    71ce6e3e9dbb3fa520424f0a2df95f2c687b80bff196b14dde39d49a34f020ce

  • SHA512

    bd5ee3f370221ef4fb1512326d8fec70bc1011b1b3420474224e0cf61e6a137bf440b55ffb61c4474bdd5791d55ea3a788af2277a950380f5ebc503f8f09a50f

  • SSDEEP

    6144:IV02OnZ0DA+vjsdqBoOeQaHYcrfkDRv7Tr57gkcsG7mwsARpD7fu:2Y0DApklJacD9Takcs7wl8

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 WebBrowserPassView 11 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 11 IoCs
  • Loads dropped DLL 1 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
  • 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 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 60 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\71ce6e3e9dbb3fa520424f0a2df95f2c687b80bff196b14dde39d49a34f020ce.exe
    "C:\Users\Admin\AppData\Local\Temp\71ce6e3e9dbb3fa520424f0a2df95f2c687b80bff196b14dde39d49a34f020ce.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1980
    • 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:1080
      • 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:2044
    • C:\Users\Admin\AppData\Local\Temp\71ce6e3e9dbb3fa520424f0a2df95f2c687b80bff196b14dde39d49a34f020ce.exe
      "C:\Users\Admin\AppData\Local\Temp\71ce6e3e9dbb3fa520424f0a2df95f2c687b80bff196b14dde39d49a34f020ce.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1212
      • 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:1964

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

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

      Filesize

      572KB

      MD5

      d35f5933085af5bc45eeec09a80ed7e3

      SHA1

      e0fe666310036a88efdcdd1b2612d4fd82703d2d

      SHA256

      71ce6e3e9dbb3fa520424f0a2df95f2c687b80bff196b14dde39d49a34f020ce

      SHA512

      bd5ee3f370221ef4fb1512326d8fec70bc1011b1b3420474224e0cf61e6a137bf440b55ffb61c4474bdd5791d55ea3a788af2277a950380f5ebc503f8f09a50f

    • memory/1080-59-0x0000000000000000-mapping.dmp

    • memory/1212-64-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/1212-67-0x0000000000466A0E-mapping.dmp

    • memory/1212-80-0x0000000074C80000-0x000000007522B000-memory.dmp

      Filesize

      5.7MB

    • memory/1212-73-0x0000000074C80000-0x000000007522B000-memory.dmp

      Filesize

      5.7MB

    • memory/1212-61-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/1212-62-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/1212-65-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/1212-71-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/1212-66-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/1212-69-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/1964-74-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1964-75-0x0000000000442628-mapping.dmp

    • memory/1964-78-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1964-79-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1964-81-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1980-57-0x0000000074C80000-0x000000007522B000-memory.dmp

      Filesize

      5.7MB

    • memory/1980-54-0x00000000756B1000-0x00000000756B3000-memory.dmp

      Filesize

      8KB

    • memory/1980-56-0x0000000000D86000-0x0000000000D97000-memory.dmp

      Filesize

      68KB

    • memory/1980-55-0x0000000074C80000-0x000000007522B000-memory.dmp

      Filesize

      5.7MB

    • memory/2044-60-0x0000000000000000-mapping.dmp