Analysis

  • max time kernel
    134s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 18:12

General

  • Target

    5a81bfc77d9724703ba17bfbb543b8d0e05ee11b1f8a0159dc1bfe6b55278cd7.exe

  • Size

    1.7MB

  • MD5

    052a940aae3e54fc50f6a407e68f6e29

  • SHA1

    a6be32c5d51476cc4d81d91959572c442209164a

  • SHA256

    5a81bfc77d9724703ba17bfbb543b8d0e05ee11b1f8a0159dc1bfe6b55278cd7

  • SHA512

    a5ad7a0336f2285018f844e4c5df30e9b19f2d7f7ff814a3ff1f69903c271fab60a3044efff5226265bd620491ba8abf7198a7c81019412bcc95cb4b027cbe63

  • SSDEEP

    24576:nWo63tNOdcwUAJONc30Zf/jSJGtvb6YtT7CU30wfTLlS4P1THSRzXJYHf7XBe7aE:3cWb3fAb6aT73jbuJY/7XdSR

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.messagingengine.com
  • Port:
    587
  • Username:
    azarbaijJ@fastmail.com
  • Password:
    qedrks8q9hlo8up1ao7hrljvc7

Signatures

  • HawkEye

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • 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
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 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 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.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5a81bfc77d9724703ba17bfbb543b8d0e05ee11b1f8a0159dc1bfe6b55278cd7.exe
    "C:\Users\Admin\AppData\Local\Temp\5a81bfc77d9724703ba17bfbb543b8d0e05ee11b1f8a0159dc1bfe6b55278cd7.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1968
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Users\Admin\AppData\Roaming\FolderName\mata.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:948
      • C:\Windows\SysWOW64\wscript.exe
        wscript.exe "C:\Users\Admin\AppData\Roaming\FolderName\invs.vbs" "C:\Users\Admin\AppData\Roaming\FolderName\mata2.bat"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1784
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c ""C:\Users\Admin\AppData\Roaming\FolderName\mata2.bat" "
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:836
          • C:\Windows\SysWOW64\reg.exe
            reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /v Shell /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\FolderName\conhost.exe" /f
            5⤵
            • Modifies WinLogon for persistence
            PID:1340
    • C:\Users\Admin\AppData\Roaming\svhost.exe
      C:\Users\Admin\AppData\Roaming\svhost.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1380
      • 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:668
      • 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:1084
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Roaming\FolderName\svhost.bat" "
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:276
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 300
          3⤵
          • Delays execution with timeout.exe
          PID:1740

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scripting

    1
    T1064

    Persistence

    Winlogon Helper DLL

    1
    T1004

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    3
    T1112

    Scripting

    1
    T1064

    Install Root Certificate

    1
    T1130

    Discovery

    System Information Discovery

    1
    T1082

    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

    • C:\Users\Admin\AppData\Roaming\FolderName\conhost.exe
      Filesize

      1.7MB

      MD5

      052a940aae3e54fc50f6a407e68f6e29

      SHA1

      a6be32c5d51476cc4d81d91959572c442209164a

      SHA256

      5a81bfc77d9724703ba17bfbb543b8d0e05ee11b1f8a0159dc1bfe6b55278cd7

      SHA512

      a5ad7a0336f2285018f844e4c5df30e9b19f2d7f7ff814a3ff1f69903c271fab60a3044efff5226265bd620491ba8abf7198a7c81019412bcc95cb4b027cbe63

    • C:\Users\Admin\AppData\Roaming\FolderName\invs.vbs
      Filesize

      78B

      MD5

      c578d9653b22800c3eb6b6a51219bbb8

      SHA1

      a97aa251901bbe179a48dbc7a0c1872e163b1f2d

      SHA256

      20a98a7e6e137bb1b9bd5ef6911a479cb8eac925b80d6db4e70b19f62a40cce2

      SHA512

      3ae6dc8f02d1a78e1235a0782b632972da5a74ab32287cc41aa672d4fa4a9d34bb5fc50eba07b6915f2e61c402927cd5f6feeb7f7602afa2f64e91efb3b7fc4d

    • C:\Users\Admin\AppData\Roaming\FolderName\mata.bat
      Filesize

      76B

      MD5

      5e57f6f4e3242ad9719ed5e65346e83e

      SHA1

      72346d0208c5edeb69f41ddb4374d56d87221dad

      SHA256

      4ffb3e764dfbc48145231f19e2217f666bc88a44c6f29adec6a5728223048d0c

      SHA512

      7dcd8a5a95965b94bf26ec02ab68b8f854f399d41fb713e4387f6fddb9914c465ccf909f92ee6704e9c0397a77f11f2ca803d68184aa414651988d95824a209f

    • C:\Users\Admin\AppData\Roaming\FolderName\mata2.bat
      Filesize

      276B

      MD5

      38cc2d8abc984eaf52aa9985d365d921

      SHA1

      163d8e032a782e3a0659410ae73aca4919b235c5

      SHA256

      5f607aebebcc89161ad09438daaf8e762f93831582872f30cac64af4f44934ed

      SHA512

      3581ecdee8c161a3a6c8ece68007184320860150d5267f9f8810e921b33c52c87dc4ae9c41a4ad6ce6fd052c06a40b946f9ff7dd62dd60257433a98ee2d0b720

    • C:\Users\Admin\AppData\Roaming\FolderName\svhost.bat
      Filesize

      209B

      MD5

      765b80e8b0dc085d7483f00ad6047559

      SHA1

      ada164420408fe1a65e202a196d6cc28034c4170

      SHA256

      f9864bb33c185eade6c9581303d64b963e5cdd3e52d5565ed575035790c9c15b

      SHA512

      a892c701fa133b958c0dd489853fe827206245d71d873d798b308b992f6a0774f6774515d6aef3423a4a530929d3952d3d057f84123900c8be1fcf8a2b7bb67e

    • C:\Users\Admin\AppData\Roaming\svhost.exe
      Filesize

      52KB

      MD5

      278edbd499374bf73621f8c1f969d894

      SHA1

      a81170af14747781c5f5f51bb1215893136f0bc0

      SHA256

      c6999b9f79932c3b4f1c461a69d9dc8dc301d6a155abc33efe1b6e9e4a038391

      SHA512

      93b0b5c3324bd2df83310f96d34c9176c94d2d676766599c1af33c98ba1efe63187056671f7c6f80c956e5bd0a725f108804021ad93326286bb9c3a96f6550b9

    • C:\Users\Admin\AppData\Roaming\svhost.exe
      Filesize

      52KB

      MD5

      278edbd499374bf73621f8c1f969d894

      SHA1

      a81170af14747781c5f5f51bb1215893136f0bc0

      SHA256

      c6999b9f79932c3b4f1c461a69d9dc8dc301d6a155abc33efe1b6e9e4a038391

      SHA512

      93b0b5c3324bd2df83310f96d34c9176c94d2d676766599c1af33c98ba1efe63187056671f7c6f80c956e5bd0a725f108804021ad93326286bb9c3a96f6550b9

    • \Users\Admin\AppData\Roaming\svhost.exe
      Filesize

      52KB

      MD5

      278edbd499374bf73621f8c1f969d894

      SHA1

      a81170af14747781c5f5f51bb1215893136f0bc0

      SHA256

      c6999b9f79932c3b4f1c461a69d9dc8dc301d6a155abc33efe1b6e9e4a038391

      SHA512

      93b0b5c3324bd2df83310f96d34c9176c94d2d676766599c1af33c98ba1efe63187056671f7c6f80c956e5bd0a725f108804021ad93326286bb9c3a96f6550b9

    • memory/276-81-0x0000000000000000-mapping.dmp
    • memory/668-89-0x0000000000411654-mapping.dmp
    • memory/668-88-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/668-102-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/668-98-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/668-95-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/836-78-0x0000000000000000-mapping.dmp
    • memory/948-56-0x0000000000000000-mapping.dmp
    • memory/1084-99-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1084-90-0x0000000000442628-mapping.dmp
    • memory/1084-87-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1084-100-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1084-96-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1340-79-0x0000000000000000-mapping.dmp
    • memory/1380-72-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1380-66-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1380-74-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1380-68-0x0000000000480C4E-mapping.dmp
    • memory/1380-80-0x00000000742C0000-0x000000007486B000-memory.dmp
      Filesize

      5.7MB

    • memory/1380-103-0x0000000000C35000-0x0000000000C46000-memory.dmp
      Filesize

      68KB

    • memory/1380-86-0x00000000742C0000-0x000000007486B000-memory.dmp
      Filesize

      5.7MB

    • memory/1380-97-0x0000000000C35000-0x0000000000C46000-memory.dmp
      Filesize

      68KB

    • memory/1380-61-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1380-60-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1380-67-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1380-64-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1740-85-0x0000000000000000-mapping.dmp
    • memory/1784-58-0x0000000000000000-mapping.dmp
    • memory/1968-54-0x0000000075141000-0x0000000075143000-memory.dmp
      Filesize

      8KB

    • memory/1968-55-0x00000000742C0000-0x000000007486B000-memory.dmp
      Filesize

      5.7MB

    • memory/1968-84-0x00000000742C0000-0x000000007486B000-memory.dmp
      Filesize

      5.7MB