Analysis

  • max time kernel
    150s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 18:50

General

  • Target

    PO9087665788.exe

  • Size

    825KB

  • MD5

    105cab9441e63917a5c774c36ab801c6

  • SHA1

    c343476262267c46ebee6cf8683de3620ca938d0

  • SHA256

    60a50c08aad635ae204be365b12b1dce34134c62b25c74aa5dc4a2e02aa75771

  • SHA512

    5d63d1389d52f1d0459db03d3aab90a4d555e22e3d0773ffe5ad8e0a35a319b67c2dfc0d435a2592b684308cfb8b8e3de6cdb4468d8cafffea594a5e7c6521a3

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    webmail.tos-thailand.com
  • Port:
    587
  • Username:
    sudarat.k@tos-thailand.com
  • Password:
    P@ssw0rd

Signatures

  • HawkEye

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

  • NirSoft MailPassView 8 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 8 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 12 IoCs
  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 8 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 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO9087665788.exe
    "C:\Users\Admin\AppData\Local\Temp\PO9087665788.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1172
    • C:\Users\Admin\AppData\Local\Temp\PO9087665788.exe
      "C:\Users\Admin\AppData\Local\Temp\PO9087665788.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:900
      • 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 behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:968
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          4⤵
          • Executes dropped EXE
          • Deletes itself
          • Loads dropped DLL
          • 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:1076
          • 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:1072
          • 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:1208

    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

      50B

      MD5

      4cb7017b8a46c8cf56bed39e0a805c19

      SHA1

      55a1cd84c133174f0ea4fbde50e7f555fa47465d

      SHA256

      a8d5ef39420789e5ebca4be99042f8924fe8b36b12abf003750f7e41a85d1b53

      SHA512

      bdda09a54492f7bebcd9461d9179ee4f347be825060b8db13de8e5cca9a0f0f0776a415d43d04c00109c1b329f3773fafc7681136c9d28413e979759df8f96bd

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

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

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

      825KB

      MD5

      105cab9441e63917a5c774c36ab801c6

      SHA1

      c343476262267c46ebee6cf8683de3620ca938d0

      SHA256

      60a50c08aad635ae204be365b12b1dce34134c62b25c74aa5dc4a2e02aa75771

      SHA512

      5d63d1389d52f1d0459db03d3aab90a4d555e22e3d0773ffe5ad8e0a35a319b67c2dfc0d435a2592b684308cfb8b8e3de6cdb4468d8cafffea594a5e7c6521a3

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

      825KB

      MD5

      105cab9441e63917a5c774c36ab801c6

      SHA1

      c343476262267c46ebee6cf8683de3620ca938d0

      SHA256

      60a50c08aad635ae204be365b12b1dce34134c62b25c74aa5dc4a2e02aa75771

      SHA512

      5d63d1389d52f1d0459db03d3aab90a4d555e22e3d0773ffe5ad8e0a35a319b67c2dfc0d435a2592b684308cfb8b8e3de6cdb4468d8cafffea594a5e7c6521a3

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

      825KB

      MD5

      105cab9441e63917a5c774c36ab801c6

      SHA1

      c343476262267c46ebee6cf8683de3620ca938d0

      SHA256

      60a50c08aad635ae204be365b12b1dce34134c62b25c74aa5dc4a2e02aa75771

      SHA512

      5d63d1389d52f1d0459db03d3aab90a4d555e22e3d0773ffe5ad8e0a35a319b67c2dfc0d435a2592b684308cfb8b8e3de6cdb4468d8cafffea594a5e7c6521a3

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

      825KB

      MD5

      105cab9441e63917a5c774c36ab801c6

      SHA1

      c343476262267c46ebee6cf8683de3620ca938d0

      SHA256

      60a50c08aad635ae204be365b12b1dce34134c62b25c74aa5dc4a2e02aa75771

      SHA512

      5d63d1389d52f1d0459db03d3aab90a4d555e22e3d0773ffe5ad8e0a35a319b67c2dfc0d435a2592b684308cfb8b8e3de6cdb4468d8cafffea594a5e7c6521a3

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

      825KB

      MD5

      105cab9441e63917a5c774c36ab801c6

      SHA1

      c343476262267c46ebee6cf8683de3620ca938d0

      SHA256

      60a50c08aad635ae204be365b12b1dce34134c62b25c74aa5dc4a2e02aa75771

      SHA512

      5d63d1389d52f1d0459db03d3aab90a4d555e22e3d0773ffe5ad8e0a35a319b67c2dfc0d435a2592b684308cfb8b8e3de6cdb4468d8cafffea594a5e7c6521a3

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

      825KB

      MD5

      105cab9441e63917a5c774c36ab801c6

      SHA1

      c343476262267c46ebee6cf8683de3620ca938d0

      SHA256

      60a50c08aad635ae204be365b12b1dce34134c62b25c74aa5dc4a2e02aa75771

      SHA512

      5d63d1389d52f1d0459db03d3aab90a4d555e22e3d0773ffe5ad8e0a35a319b67c2dfc0d435a2592b684308cfb8b8e3de6cdb4468d8cafffea594a5e7c6521a3

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

      825KB

      MD5

      105cab9441e63917a5c774c36ab801c6

      SHA1

      c343476262267c46ebee6cf8683de3620ca938d0

      SHA256

      60a50c08aad635ae204be365b12b1dce34134c62b25c74aa5dc4a2e02aa75771

      SHA512

      5d63d1389d52f1d0459db03d3aab90a4d555e22e3d0773ffe5ad8e0a35a319b67c2dfc0d435a2592b684308cfb8b8e3de6cdb4468d8cafffea594a5e7c6521a3

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

      825KB

      MD5

      105cab9441e63917a5c774c36ab801c6

      SHA1

      c343476262267c46ebee6cf8683de3620ca938d0

      SHA256

      60a50c08aad635ae204be365b12b1dce34134c62b25c74aa5dc4a2e02aa75771

      SHA512

      5d63d1389d52f1d0459db03d3aab90a4d555e22e3d0773ffe5ad8e0a35a319b67c2dfc0d435a2592b684308cfb8b8e3de6cdb4468d8cafffea594a5e7c6521a3

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

      825KB

      MD5

      105cab9441e63917a5c774c36ab801c6

      SHA1

      c343476262267c46ebee6cf8683de3620ca938d0

      SHA256

      60a50c08aad635ae204be365b12b1dce34134c62b25c74aa5dc4a2e02aa75771

      SHA512

      5d63d1389d52f1d0459db03d3aab90a4d555e22e3d0773ffe5ad8e0a35a319b67c2dfc0d435a2592b684308cfb8b8e3de6cdb4468d8cafffea594a5e7c6521a3

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

      825KB

      MD5

      105cab9441e63917a5c774c36ab801c6

      SHA1

      c343476262267c46ebee6cf8683de3620ca938d0

      SHA256

      60a50c08aad635ae204be365b12b1dce34134c62b25c74aa5dc4a2e02aa75771

      SHA512

      5d63d1389d52f1d0459db03d3aab90a4d555e22e3d0773ffe5ad8e0a35a319b67c2dfc0d435a2592b684308cfb8b8e3de6cdb4468d8cafffea594a5e7c6521a3

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

      825KB

      MD5

      105cab9441e63917a5c774c36ab801c6

      SHA1

      c343476262267c46ebee6cf8683de3620ca938d0

      SHA256

      60a50c08aad635ae204be365b12b1dce34134c62b25c74aa5dc4a2e02aa75771

      SHA512

      5d63d1389d52f1d0459db03d3aab90a4d555e22e3d0773ffe5ad8e0a35a319b67c2dfc0d435a2592b684308cfb8b8e3de6cdb4468d8cafffea594a5e7c6521a3

    • memory/900-60-0x0000000073F30000-0x00000000744DB000-memory.dmp
      Filesize

      5MB

    • memory/900-57-0x0000000001ED0000-0x0000000001F58000-memory.dmp
      Filesize

      544KB

    • memory/900-56-0x0000000001ED0000-0x0000000001F58000-memory.dmp
      Filesize

      544KB

    • memory/900-55-0x000000000051B520-mapping.dmp
    • memory/968-62-0x0000000000000000-mapping.dmp
    • memory/968-78-0x0000000000400000-0x00000000004D5000-memory.dmp
      Filesize

      852KB

    • memory/1072-81-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1072-82-0x0000000000411654-mapping.dmp
    • memory/1072-87-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1072-85-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1076-80-0x0000000073F90000-0x000000007453B000-memory.dmp
      Filesize

      5MB

    • memory/1076-70-0x000000000051B520-mapping.dmp
    • memory/1076-77-0x0000000002040000-0x00000000020C8000-memory.dmp
      Filesize

      544KB

    • memory/1076-76-0x0000000002040000-0x00000000020C8000-memory.dmp
      Filesize

      544KB

    • memory/1172-54-0x00000000755A1000-0x00000000755A3000-memory.dmp
      Filesize

      8KB

    • memory/1172-59-0x0000000000400000-0x00000000004D5000-memory.dmp
      Filesize

      852KB

    • memory/1208-88-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1208-89-0x0000000000442628-mapping.dmp
    • memory/1208-92-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1208-94-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB