Analysis

  • max time kernel
    225s
  • max time network
    264s
  • platform
    windows10-1703_x64
  • resource
    win10-20240611-ja
  • resource tags

    arch:x64arch:x86image:win10-20240611-jalocale:ja-jpos:windows10-1703-x64systemwindows
  • submitted
    16-10-2024 00:18

General

  • Target

    お見積り依頼.exe

  • Size

    497KB

  • MD5

    5fb84fe04e1573be79533791aeaa9d34

  • SHA1

    df0f6db5d0bba16265f2210fce28d6b5c5c704cb

  • SHA256

    07544f90f1d6b64b394f2a1c8a8ab2283c8ac87eac9ea3128cc4e2af83c8e920

  • SHA512

    488075a3bc63b005a117726c4859743154cc0d75f0e57927e8eccf9e8ca929b68d1fd3fff5f2cd24f19afc4f05e9e934b683e00b83aa63ae4317db2a58f40f76

  • SSDEEP

    12288:FfUSZtmY7Q+JJxCq9MXWRZVk9BEe7v4joiZ6kD4o:FnbxzJxCq9MGNk9EUicm4

Malware Config

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 12 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 28 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe
    "C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3492
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4568
    • C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe
      "C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:64
  • C:\Windows\System32\IME\SHARED\imebroker.exe
    C:\Windows\System32\IME\SHARED\imebroker.exe -Embedding
    1⤵
      PID:4512
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:440
      • C:\Windows\system32\mmc.exe
        "C:\Windows\system32\mmc.exe" "C:\Windows\System32\taskschd.msc"
        1⤵
        • Drops file in System32 directory
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2076
      • C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe
        "C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"
        1⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4776
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"
          2⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:544
        • C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe
          "C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"
          2⤵
          • Accesses Microsoft Outlook profiles
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:1572
      • C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe
        "C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"
        1⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1764
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"
          2⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:4932
        • C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe
          "C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"
          2⤵
          • Accesses Microsoft Outlook profiles
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:4336
      • C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe
        "C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"
        1⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2880
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"
          2⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:4784
        • C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe
          "C:\Users\Admin\AppData\Local\Temp\お見積り依頼.exe"
          2⤵
          • Accesses Microsoft Outlook profiles
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • outlook_office_path
          • outlook_win_path
          PID:2256

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

        Filesize

        2KB

        MD5

        db01a2c1c7e70b2b038edf8ad5ad9826

        SHA1

        540217c647a73bad8d8a79e3a0f3998b5abd199b

        SHA256

        413da361d77055dae7007f82b58b366c8783aa72e0b8fbe41519b940c253b38d

        SHA512

        c76ff57fcee5cdf9fdf3116d4e1dc0cf106867bf19ab474b763e242acf5dca9a7509cb837c35e130c3e056636b4e8a4e135512a978bcd3dd641e20f5bf76c3d6

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\お見積り依頼.exe.log

        Filesize

        1KB

        MD5

        0c2899d7c6746f42d5bbe088c777f94c

        SHA1

        622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

        SHA256

        5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

        SHA512

        ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        18KB

        MD5

        829b53d10878b7d6ef5e9a938b3606f4

        SHA1

        f80f522a8b96776f2be40034550c90e871903a91

        SHA256

        dc3ed824cd84454db6d71bde7b721e4a39de3136081722cba8e3e9d28d2ec853

        SHA512

        0af81087355b4ffd1fb3546a9d8e595919ca70908801123872c51ad9ac8a4be0a0cbe59ab68f5367839ccb82eaad48e77484dc580be74b2ff473ea6494796576

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        18KB

        MD5

        d9b58651487a76e40b99b0d031c612d4

        SHA1

        3d9ced656904ad9814dd4b1e22f4197c9e7abee2

        SHA256

        9b73ff6ea0941d1126341827a0520e646d068ba5144e6db973a29b90097af5f2

        SHA512

        c6a0b4461020b72f11f7ca96b2523a40be9e60d69d433fab82fef3e74c957e6d14df45278fb211fcdc4495820b64f325fa55a4f01759c9a5d0e3f30febbf4c65

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qf1dp22r.itd.ps1

        Filesize

        1B

        MD5

        c4ca4238a0b923820dcc509a6f75849b

        SHA1

        356a192b7913b04c54574d18c28d46e6395428ab

        SHA256

        6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

        SHA512

        4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

      • memory/64-12-0x0000000000400000-0x0000000000426000-memory.dmp

        Filesize

        152KB

      • memory/64-261-0x0000000006930000-0x0000000006AF2000-memory.dmp

        Filesize

        1.8MB

      • memory/64-260-0x0000000006540000-0x0000000006554000-memory.dmp

        Filesize

        80KB

      • memory/544-460-0x000000006FE10000-0x000000006FE5B000-memory.dmp

        Filesize

        300KB

      • memory/544-439-0x0000000007610000-0x0000000007960000-memory.dmp

        Filesize

        3.3MB

      • memory/544-465-0x0000000009020000-0x00000000090C5000-memory.dmp

        Filesize

        660KB

      • memory/1572-542-0x0000000006490000-0x00000000064D8000-memory.dmp

        Filesize

        288KB

      • memory/1764-434-0x0000000005690000-0x00000000056A2000-memory.dmp

        Filesize

        72KB

      • memory/2076-317-0x000000001CE90000-0x000000001CEB2000-memory.dmp

        Filesize

        136KB

      • memory/2076-312-0x000000001CFE0000-0x000000001D186000-memory.dmp

        Filesize

        1.6MB

      • memory/2076-299-0x0000000004870000-0x000000000487E000-memory.dmp

        Filesize

        56KB

      • memory/2076-284-0x000000001CBF0000-0x000000001CCFE000-memory.dmp

        Filesize

        1.1MB

      • memory/2880-909-0x0000000005200000-0x0000000005212000-memory.dmp

        Filesize

        72KB

      • memory/3492-14-0x0000000073610000-0x0000000073CFE000-memory.dmp

        Filesize

        6.9MB

      • memory/3492-0-0x000000007361E000-0x000000007361F000-memory.dmp

        Filesize

        4KB

      • memory/3492-1-0x0000000000AB0000-0x0000000000B32000-memory.dmp

        Filesize

        520KB

      • memory/3492-2-0x0000000005870000-0x0000000005D6E000-memory.dmp

        Filesize

        5.0MB

      • memory/3492-3-0x0000000005410000-0x00000000054A2000-memory.dmp

        Filesize

        584KB

      • memory/3492-4-0x0000000005390000-0x000000000539A000-memory.dmp

        Filesize

        40KB

      • memory/3492-6-0x00000000056B0000-0x000000000574C000-memory.dmp

        Filesize

        624KB

      • memory/3492-5-0x0000000073610000-0x0000000073CFE000-memory.dmp

        Filesize

        6.9MB

      • memory/3492-7-0x00000000055D0000-0x00000000055E2000-memory.dmp

        Filesize

        72KB

      • memory/3492-8-0x000000007361E000-0x000000007361F000-memory.dmp

        Filesize

        4KB

      • memory/3492-9-0x0000000073610000-0x0000000073CFE000-memory.dmp

        Filesize

        6.9MB

      • memory/3492-10-0x0000000006830000-0x0000000006898000-memory.dmp

        Filesize

        416KB

      • memory/3492-11-0x0000000009460000-0x000000000956E000-memory.dmp

        Filesize

        1.1MB

      • memory/4568-45-0x000000006FE10000-0x000000006FE5B000-memory.dmp

        Filesize

        300KB

      • memory/4568-46-0x0000000009800000-0x000000000981E000-memory.dmp

        Filesize

        120KB

      • memory/4568-251-0x0000000009C70000-0x0000000009C78000-memory.dmp

        Filesize

        32KB

      • memory/4568-20-0x00000000077A0000-0x00000000077C2000-memory.dmp

        Filesize

        136KB

      • memory/4568-19-0x00000000074D0000-0x0000000007562000-memory.dmp

        Filesize

        584KB

      • memory/4568-18-0x00000000077D0000-0x0000000007DF8000-memory.dmp

        Filesize

        6.2MB

      • memory/4568-17-0x0000000007010000-0x0000000007046000-memory.dmp

        Filesize

        216KB

      • memory/4568-53-0x0000000009D80000-0x0000000009E14000-memory.dmp

        Filesize

        592KB

      • memory/4568-52-0x0000000009C90000-0x0000000009CE0000-memory.dmp

        Filesize

        320KB

      • memory/4568-51-0x0000000009B00000-0x0000000009BA5000-memory.dmp

        Filesize

        660KB

      • memory/4568-23-0x0000000007780000-0x0000000007790000-memory.dmp

        Filesize

        64KB

      • memory/4568-246-0x0000000009CE0000-0x0000000009CFA000-memory.dmp

        Filesize

        104KB

      • memory/4568-21-0x0000000007E70000-0x0000000007ED6000-memory.dmp

        Filesize

        408KB

      • memory/4568-44-0x0000000009820000-0x0000000009853000-memory.dmp

        Filesize

        204KB

      • memory/4568-22-0x0000000007EE0000-0x0000000007F46000-memory.dmp

        Filesize

        408KB

      • memory/4568-27-0x0000000008950000-0x00000000089C6000-memory.dmp

        Filesize

        472KB

      • memory/4568-26-0x0000000008660000-0x00000000086AB000-memory.dmp

        Filesize

        300KB

      • memory/4568-25-0x0000000008640000-0x000000000865C000-memory.dmp

        Filesize

        112KB

      • memory/4568-24-0x00000000080B0000-0x0000000008400000-memory.dmp

        Filesize

        3.3MB

      • memory/4776-433-0x00000000052B0000-0x00000000052C2000-memory.dmp

        Filesize

        72KB

      • memory/4784-930-0x000000006FE10000-0x000000006FE5B000-memory.dmp

        Filesize

        300KB

      • memory/4784-935-0x0000000009760000-0x0000000009805000-memory.dmp

        Filesize

        660KB

      • memory/4932-687-0x000000006FE10000-0x000000006FE5B000-memory.dmp

        Filesize

        300KB