Analysis

  • max time kernel
    113s
  • max time network
    134s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 14:01

General

  • Target

    545778886ec6aacd7a33e1865c938ca43ebe4be2d7169f2a91fc030be7141823.exe

  • Size

    562KB

  • MD5

    f886c38a35b5b55226ee4160baf51f43

  • SHA1

    36c3a0571a2123f71ad168501857de60790041b7

  • SHA256

    545778886ec6aacd7a33e1865c938ca43ebe4be2d7169f2a91fc030be7141823

  • SHA512

    904c7a5deb27d25db399b1724f01a9f3cc5665e994bf3cccc93dd496693264da64f10f2f1e6e92aac847089495228ff6401948bf05199c70c322966a84073b6b

  • SSDEEP

    12288:zmOGmPQkxEB95xE3JWsJIoDSKPVpzNKwP/6XFh61CUnIfm5f03:zmxmPQ55x9KdpzNNPiVvUIp

Malware Config

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 12 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 17 IoCs
  • Executes dropped EXE 2 IoCs
  • Drops startup file 2 IoCs
  • Loads dropped DLL 4 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 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\545778886ec6aacd7a33e1865c938ca43ebe4be2d7169f2a91fc030be7141823.exe
    "C:\Users\Admin\AppData\Local\Temp\545778886ec6aacd7a33e1865c938ca43ebe4be2d7169f2a91fc030be7141823.exe"
    1⤵
    • Drops startup file
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:284
    • C:\Users\Admin\AppData\Local\Temp\545778886ec6aacd7a33e1865c938ca43ebe4be2d7169f2a91fc030be7141823.exe
      "C:\Users\Admin\AppData\Local\Temp\545778886ec6aacd7a33e1865c938ca43ebe4be2d7169f2a91fc030be7141823.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1916
      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
        3⤵
        • Executes dropped EXE
        • Drops startup file
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1740
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1016
          • 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:696
          • 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"
            5⤵
              PID:1576

    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

    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\SysInfo.txt
      Filesize

      102B

      MD5

      dadcdbfd871a7b4edeb98ad70621ad60

      SHA1

      8b0268f5540fd0bc0d71fb2d7b268c85a89a093f

      SHA256

      744e2f63293665e69598dc1fd4164c0ba6de2b5a710e0d60a74c2d3c92f24b33

      SHA512

      e4fbcffe87f4be2e4d4034cbb9b284ec42d2c6766fe246043b9fc9ba1e0c2436fb0159d9a90a562e7cb3fbd09cc699ede517c91a0a4292d26e929d94c795390f

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

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\gz68mkaaJQ.lnk
      Filesize

      916B

      MD5

      42c2724eb44735cafab5b89df08dc3b5

      SHA1

      0864858bd9b8bfe48a5fe3d26c1a1eb309bd4e37

      SHA256

      171ecf7c569a6be4bfcea56e64efb38ab38ef4093474b46f4b0903b567c7560d

      SHA512

      1e5e68cef08d97dccaec278a35727783739929b8bb459811d4b6c028c407969575153ea7da2484f227bdcbe3dac96197cba33692a86178057354716a23dbfd13

    • C:\Users\Admin\AppData\Roaming\TwLiiVlrzn\gz68mkaaJQ.exe
      Filesize

      562KB

      MD5

      f886c38a35b5b55226ee4160baf51f43

      SHA1

      36c3a0571a2123f71ad168501857de60790041b7

      SHA256

      545778886ec6aacd7a33e1865c938ca43ebe4be2d7169f2a91fc030be7141823

      SHA512

      904c7a5deb27d25db399b1724f01a9f3cc5665e994bf3cccc93dd496693264da64f10f2f1e6e92aac847089495228ff6401948bf05199c70c322966a84073b6b

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

      562KB

      MD5

      f886c38a35b5b55226ee4160baf51f43

      SHA1

      36c3a0571a2123f71ad168501857de60790041b7

      SHA256

      545778886ec6aacd7a33e1865c938ca43ebe4be2d7169f2a91fc030be7141823

      SHA512

      904c7a5deb27d25db399b1724f01a9f3cc5665e994bf3cccc93dd496693264da64f10f2f1e6e92aac847089495228ff6401948bf05199c70c322966a84073b6b

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

      562KB

      MD5

      f886c38a35b5b55226ee4160baf51f43

      SHA1

      36c3a0571a2123f71ad168501857de60790041b7

      SHA256

      545778886ec6aacd7a33e1865c938ca43ebe4be2d7169f2a91fc030be7141823

      SHA512

      904c7a5deb27d25db399b1724f01a9f3cc5665e994bf3cccc93dd496693264da64f10f2f1e6e92aac847089495228ff6401948bf05199c70c322966a84073b6b

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

      562KB

      MD5

      f886c38a35b5b55226ee4160baf51f43

      SHA1

      36c3a0571a2123f71ad168501857de60790041b7

      SHA256

      545778886ec6aacd7a33e1865c938ca43ebe4be2d7169f2a91fc030be7141823

      SHA512

      904c7a5deb27d25db399b1724f01a9f3cc5665e994bf3cccc93dd496693264da64f10f2f1e6e92aac847089495228ff6401948bf05199c70c322966a84073b6b

    • \Users\Admin\AppData\Roaming\TwLiiVlrzn\gz68mkaaJQ.exe
      Filesize

      562KB

      MD5

      f886c38a35b5b55226ee4160baf51f43

      SHA1

      36c3a0571a2123f71ad168501857de60790041b7

      SHA256

      545778886ec6aacd7a33e1865c938ca43ebe4be2d7169f2a91fc030be7141823

      SHA512

      904c7a5deb27d25db399b1724f01a9f3cc5665e994bf3cccc93dd496693264da64f10f2f1e6e92aac847089495228ff6401948bf05199c70c322966a84073b6b

    • \Users\Admin\AppData\Roaming\TwLiiVlrzn\gz68mkaaJQ.exe
      Filesize

      562KB

      MD5

      f886c38a35b5b55226ee4160baf51f43

      SHA1

      36c3a0571a2123f71ad168501857de60790041b7

      SHA256

      545778886ec6aacd7a33e1865c938ca43ebe4be2d7169f2a91fc030be7141823

      SHA512

      904c7a5deb27d25db399b1724f01a9f3cc5665e994bf3cccc93dd496693264da64f10f2f1e6e92aac847089495228ff6401948bf05199c70c322966a84073b6b

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

      562KB

      MD5

      f886c38a35b5b55226ee4160baf51f43

      SHA1

      36c3a0571a2123f71ad168501857de60790041b7

      SHA256

      545778886ec6aacd7a33e1865c938ca43ebe4be2d7169f2a91fc030be7141823

      SHA512

      904c7a5deb27d25db399b1724f01a9f3cc5665e994bf3cccc93dd496693264da64f10f2f1e6e92aac847089495228ff6401948bf05199c70c322966a84073b6b

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

      562KB

      MD5

      f886c38a35b5b55226ee4160baf51f43

      SHA1

      36c3a0571a2123f71ad168501857de60790041b7

      SHA256

      545778886ec6aacd7a33e1865c938ca43ebe4be2d7169f2a91fc030be7141823

      SHA512

      904c7a5deb27d25db399b1724f01a9f3cc5665e994bf3cccc93dd496693264da64f10f2f1e6e92aac847089495228ff6401948bf05199c70c322966a84073b6b

    • memory/284-54-0x0000000076201000-0x0000000076203000-memory.dmp
      Filesize

      8KB

    • memory/284-56-0x0000000074350000-0x00000000748FB000-memory.dmp
      Filesize

      5.7MB

    • memory/284-55-0x0000000074350000-0x00000000748FB000-memory.dmp
      Filesize

      5.7MB

    • memory/696-100-0x0000000000411654-mapping.dmp
    • memory/696-99-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/696-105-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/696-104-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/696-103-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1016-86-0x000000000047EAEE-mapping.dmp
    • memory/1016-94-0x0000000074350000-0x00000000748FB000-memory.dmp
      Filesize

      5.7MB

    • memory/1016-98-0x0000000074350000-0x00000000748FB000-memory.dmp
      Filesize

      5.7MB

    • memory/1576-113-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1576-111-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1576-110-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1576-107-0x0000000000442628-mapping.dmp
    • memory/1576-106-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1740-76-0x0000000074350000-0x00000000748FB000-memory.dmp
      Filesize

      5.7MB

    • memory/1740-71-0x0000000000000000-mapping.dmp
    • memory/1740-78-0x0000000074350000-0x00000000748FB000-memory.dmp
      Filesize

      5.7MB

    • memory/1916-62-0x0000000000400000-0x0000000000484000-memory.dmp
      Filesize

      528KB

    • memory/1916-69-0x0000000074350000-0x00000000748FB000-memory.dmp
      Filesize

      5.7MB

    • memory/1916-58-0x0000000000400000-0x0000000000484000-memory.dmp
      Filesize

      528KB

    • memory/1916-75-0x0000000074350000-0x00000000748FB000-memory.dmp
      Filesize

      5.7MB

    • memory/1916-60-0x0000000000400000-0x0000000000484000-memory.dmp
      Filesize

      528KB

    • memory/1916-61-0x0000000000400000-0x0000000000484000-memory.dmp
      Filesize

      528KB

    • memory/1916-67-0x0000000000400000-0x0000000000484000-memory.dmp
      Filesize

      528KB

    • memory/1916-63-0x000000000047EAEE-mapping.dmp
    • memory/1916-57-0x0000000000400000-0x0000000000484000-memory.dmp
      Filesize

      528KB

    • memory/1916-65-0x0000000000400000-0x0000000000484000-memory.dmp
      Filesize

      528KB