Analysis

  • max time kernel
    149s
  • max time network
    135s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-ja
  • resource tags

    arch:x64arch:x86image:win10-20240404-jalocale:ja-jpos:windows10-1703-x64systemwindows
  • submitted
    16-10-2024 00:06

General

  • Target

    見積依頼.exe

  • Size

    617KB

  • MD5

    ab710965b2eab728f4fefc66995ca7e2

  • SHA1

    d7279c173f5c08b7bc39916fdaf65f48af41e88e

  • SHA256

    6e3fef37f80b4afe593fcacf78134e27d939866a7f3291bdafac411e2b31abef

  • SHA512

    4330f7017dbec8530c014062e23e5feee606193e5ff7610d7ee8d89c222e7f4d23339444db94155df2183c8ab5a966dcd46e62bc43d2fb128243b12471e45b02

  • SSDEEP

    12288:cLEiJY0wvx4+dSrQo4OnOjkEkGxnXrl8WTG4m:WPJjC4+dSsXOnOj46n9T

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 6 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 9 IoCs
  • Looks up external IP address via web service 1 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 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 15 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 36 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 51 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\見積依頼.exe
    "C:\Users\Admin\AppData\Local\Temp\見積依頼.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3232
    • 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\見積依頼.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4576
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TpQmYD.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:192
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TpQmYD" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBAE4.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4396
    • C:\Users\Admin\AppData\Local\Temp\見積依頼.exe
      "C:\Users\Admin\AppData\Local\Temp\見積依頼.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4876
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3148
    • C:\Windows\System32\IME\SHARED\imebroker.exe
      C:\Windows\System32\IME\SHARED\imebroker.exe -Embedding
      1⤵
        PID:3492
      • C:\Users\Admin\AppData\Local\Temp\見積依頼.exe
        "C:\Users\Admin\AppData\Local\Temp\見積依頼.exe"
        1⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2316
        • 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\見積依頼.exe"
          2⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2580
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TpQmYD.exe"
          2⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3892
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TpQmYD" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC704.tmp"
          2⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:4712
        • C:\Users\Admin\AppData\Local\Temp\見積依頼.exe
          "C:\Users\Admin\AppData\Local\Temp\見積依頼.exe"
          2⤵
          • Accesses Microsoft Outlook profiles
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4804
      • C:\Users\Admin\AppData\Local\Temp\見積依頼.exe
        "C:\Users\Admin\AppData\Local\Temp\見積依頼.exe"
        1⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4248
        • 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\見積依頼.exe"
          2⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:5080
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TpQmYD.exe"
          2⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2244
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TpQmYD" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDD5B.tmp"
          2⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:4148
        • C:\Users\Admin\AppData\Local\Temp\見積依頼.exe
          "C:\Users\Admin\AppData\Local\Temp\見積依頼.exe"
          2⤵
          • Accesses Microsoft Outlook profiles
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:4452
      • 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:1872

      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

        1c19c16e21c97ed42d5beabc93391fc5

        SHA1

        8ad83f8e0b3acf8dfbbf87931e41f0d664c4df68

        SHA256

        1bcd97396c83babfe6c5068ba590d7a3f8b70e72955a9d1e4070648e404cbf05

        SHA512

        7d18776d8f649b3d29c182ff03efc6cea8b527542ee55304980f24577aae8b64e37044407776e220984346c3998ace5f8853afa58c8b38407482a728e9495e0c

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\見積依頼.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

        75820be786f94d56d69c78a65397bec2

        SHA1

        018150e98208af3ac8188c25aa4176fd1661f3a6

        SHA256

        fc5d8c2d3735989f5529735bed061e565da2b7cb3dfd31ec6b1b79f8b7638a71

        SHA512

        0f7c9b473f3a0e84f1e3fb3b271a2e4dc7ee9187697e352cb363fc33a41a05aa42e8b7cd5e262ed5191b43c140571e424ac9f708f3552dcbe0f7839a5dec9f73

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

        Filesize

        18KB

        MD5

        6562f8e861f3d925d2d96d5d728b33bf

        SHA1

        149ed444dd5d84cbef85b89e5cb0eaafcdfa1f7a

        SHA256

        6197f4829f606c96b010be830f21988ca453d7a5bf511d42258ec7b5d85e7540

        SHA512

        961d7c149001de9c0c0c86478b8c90708a2a8e61a298ef828d386d55683a60cc8b728d50efdc09118494a2f176f208aad3775b0581b46d8f8d7d790cea136ab9

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

        Filesize

        18KB

        MD5

        04561b176faa8523aa07fa4bb2969861

        SHA1

        4aecba39382a84d00c036ae622649650740d38e0

        SHA256

        c8acaeb6a1bf5aa29950b92a465f0cdf3ee983b32206255ec5ae4d84e312892f

        SHA512

        e1b90a44ead304e8a1db297444d3f7be580b87e347008ab52fc59f4621903098416e17541e19506685495ac4fdbcd60ede8082d8eacc9e5b73c3573191ab6cc4

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pj1ewxlf.4yd.ps1

        Filesize

        1B

        MD5

        c4ca4238a0b923820dcc509a6f75849b

        SHA1

        356a192b7913b04c54574d18c28d46e6395428ab

        SHA256

        6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

        SHA512

        4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

      • C:\Users\Admin\AppData\Local\Temp\tmpBAE4.tmp

        Filesize

        1KB

        MD5

        70237ab982a2fb4da5fd9315ead93b87

        SHA1

        da28835ac58379123c69ea9bc8f21b51fbf7ee99

        SHA256

        746c051d3826bb4421269fecdd3a946cfbb37e9a67b58df4a6b3cdfb5391d10a

        SHA512

        80471c6c75743c4838111f39294ef51546e3c26dff609b83ac790721348a047a5be1eccabbc0d5e3e68ea86fd174f5f0e461bd3714709b62d1c513ebb39aff91

      • memory/192-72-0x00000000098C0000-0x00000000098DE000-memory.dmp

        Filesize

        120KB

      • memory/192-82-0x00000000099C0000-0x0000000009A65000-memory.dmp

        Filesize

        660KB

      • memory/192-510-0x0000000073970000-0x000000007405E000-memory.dmp

        Filesize

        6.9MB

      • memory/192-468-0x0000000009BA0000-0x0000000009BBA000-memory.dmp

        Filesize

        104KB

      • memory/192-70-0x00000000098E0000-0x0000000009913000-memory.dmp

        Filesize

        204KB

      • memory/192-71-0x00000000708F0000-0x000000007093B000-memory.dmp

        Filesize

        300KB

      • memory/192-36-0x0000000008570000-0x00000000085BB000-memory.dmp

        Filesize

        300KB

      • memory/192-22-0x00000000075D0000-0x0000000007BF8000-memory.dmp

        Filesize

        6.2MB

      • memory/192-35-0x0000000007F60000-0x0000000007F7C000-memory.dmp

        Filesize

        112KB

      • memory/192-24-0x0000000073970000-0x000000007405E000-memory.dmp

        Filesize

        6.9MB

      • memory/192-33-0x0000000008000000-0x0000000008350000-memory.dmp

        Filesize

        3.3MB

      • memory/192-28-0x0000000007CB0000-0x0000000007D16000-memory.dmp

        Filesize

        408KB

      • memory/192-30-0x0000000007380000-0x0000000007390000-memory.dmp

        Filesize

        64KB

      • memory/192-29-0x0000000007EF0000-0x0000000007F56000-memory.dmp

        Filesize

        408KB

      • memory/1872-1512-0x000000001E2B0000-0x000000001E2D2000-memory.dmp

        Filesize

        136KB

      • memory/1872-1507-0x000000001E4B0000-0x000000001E656000-memory.dmp

        Filesize

        1.6MB

      • memory/1872-1493-0x000000001CDB0000-0x000000001CDBE000-memory.dmp

        Filesize

        56KB

      • memory/1872-1478-0x000000001DE70000-0x000000001DF7E000-memory.dmp

        Filesize

        1.1MB

      • memory/2244-1036-0x00000000703A0000-0x00000000703EB000-memory.dmp

        Filesize

        300KB

      • memory/2580-562-0x0000000070060000-0x00000000700AB000-memory.dmp

        Filesize

        300KB

      • memory/3232-2-0x0000000004F10000-0x000000000540E000-memory.dmp

        Filesize

        5.0MB

      • memory/3232-9-0x0000000073970000-0x000000007405E000-memory.dmp

        Filesize

        6.9MB

      • memory/3232-6-0x0000000004BB0000-0x0000000004C4C000-memory.dmp

        Filesize

        624KB

      • memory/3232-1-0x0000000000040000-0x00000000000E0000-memory.dmp

        Filesize

        640KB

      • memory/3232-0-0x000000007397E000-0x000000007397F000-memory.dmp

        Filesize

        4KB

      • memory/3232-34-0x0000000073970000-0x000000007405E000-memory.dmp

        Filesize

        6.9MB

      • memory/3232-11-0x0000000009EC0000-0x0000000009FCE000-memory.dmp

        Filesize

        1.1MB

      • memory/3232-8-0x000000007397E000-0x000000007397F000-memory.dmp

        Filesize

        4KB

      • memory/3232-7-0x00000000060D0000-0x00000000060EA000-memory.dmp

        Filesize

        104KB

      • memory/3232-3-0x0000000004900000-0x0000000004992000-memory.dmp

        Filesize

        584KB

      • memory/3232-10-0x0000000007270000-0x00000000072D8000-memory.dmp

        Filesize

        416KB

      • memory/3232-4-0x00000000049C0000-0x00000000049CA000-memory.dmp

        Filesize

        40KB

      • memory/3232-5-0x0000000073970000-0x000000007405E000-memory.dmp

        Filesize

        6.9MB

      • memory/3892-559-0x0000000009840000-0x00000000098E5000-memory.dmp

        Filesize

        660KB

      • memory/3892-523-0x0000000008840000-0x000000000888B000-memory.dmp

        Filesize

        300KB

      • memory/3892-520-0x0000000007B80000-0x0000000007ED0000-memory.dmp

        Filesize

        3.3MB

      • memory/3892-552-0x0000000070060000-0x00000000700AB000-memory.dmp

        Filesize

        300KB

      • memory/4576-37-0x00000000087B0000-0x0000000008826000-memory.dmp

        Filesize

        472KB

      • memory/4576-84-0x0000000009B90000-0x0000000009C24000-memory.dmp

        Filesize

        592KB

      • memory/4576-509-0x0000000073970000-0x000000007405E000-memory.dmp

        Filesize

        6.9MB

      • memory/4576-27-0x0000000007BD0000-0x0000000007BF2000-memory.dmp

        Filesize

        136KB

      • memory/4576-477-0x0000000009A90000-0x0000000009A98000-memory.dmp

        Filesize

        32KB

      • memory/4576-23-0x0000000073970000-0x000000007405E000-memory.dmp

        Filesize

        6.9MB

      • memory/4576-21-0x0000000073970000-0x000000007405E000-memory.dmp

        Filesize

        6.9MB

      • memory/4576-83-0x0000000009AA0000-0x0000000009AF0000-memory.dmp

        Filesize

        320KB

      • memory/4576-25-0x00000000072F0000-0x0000000007382000-memory.dmp

        Filesize

        584KB

      • memory/4576-18-0x0000000004A60000-0x0000000004A96000-memory.dmp

        Filesize

        216KB

      • memory/4576-73-0x00000000708F0000-0x000000007093B000-memory.dmp

        Filesize

        300KB

      • memory/4876-512-0x00000000065B0000-0x0000000006772000-memory.dmp

        Filesize

        1.8MB

      • memory/4876-511-0x0000000005450000-0x0000000005464000-memory.dmp

        Filesize

        80KB

      • memory/4876-31-0x0000000000400000-0x0000000000426000-memory.dmp

        Filesize

        152KB

      • memory/5080-1033-0x00000000092F0000-0x0000000009395000-memory.dmp

        Filesize

        660KB

      • memory/5080-1026-0x00000000703A0000-0x00000000703EB000-memory.dmp

        Filesize

        300KB

      • memory/5080-997-0x0000000007E10000-0x0000000007E5B000-memory.dmp

        Filesize

        300KB

      • memory/5080-995-0x0000000007830000-0x0000000007B80000-memory.dmp

        Filesize

        3.3MB