Resubmissions

19/11/2024, 12:20

241119-phyeeawgnr10

07/11/2024, 14:12

241107-rhtsbswmbk10

Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/11/2024, 14:12

General

  • Target
    kb2.ps1
  • Size 726B
  • Sample241107-rhtsbswmbk
  • SHA256 6905b4b4bc10a37ef57a613505702236938049bd3e05832cc916b35b1f5abdf3
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • Drops startup file 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 46 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Looks up external IP address via web service 2 IoCs

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

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Detects Pyinstaller 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 58 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\kb2.ps1
    1⤵
    • Drops startup file
    • Command and Scripting Interpreter: PowerShell
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3680
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe" /c C:\Users\Admin\AppData\Roaming\UWRyTewt\Set-up.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3020
      • C:\Users\Admin\AppData\Roaming\UWRyTewt\Set-up.exe
        C:\Users\Admin\AppData\Roaming\UWRyTewt\Set-up.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:652
        • C:\Users\Admin\AppData\Roaming\UWRyTewt\Set-up.exe
          C:\Users\Admin\AppData\Roaming\UWRyTewt\Set-up.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2688
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c "C:\Windows\System32\wbem\WMIC.exe csproduct get uuid"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:4456
            • C:\Windows\System32\wbem\WMIC.exe
              C:\Windows\System32\wbem\WMIC.exe csproduct get uuid
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:4056

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        _raw_cbc.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\Crypto\Cipher\_raw_cbc.pyd
        • Size 12KB
        • SHA256 9d0a5c9813ad6ba129cafef815741636336eb9426ac4204de7bc0471f7b006e1
        • MD5 SHA1 SHA512 SSDEEP

        _raw_cfb.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\Crypto\Cipher\_raw_cfb.pyd
        • Size 13KB
        • SHA256 5ea310e0f85316c8981ed6293086a952fa91a6d12ca3f8af9581521ee2b15586
        • MD5 SHA1 SHA512 SSDEEP

        _raw_ecb.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\Crypto\Cipher\_raw_ecb.pyd
        • Size 10KB
        • SHA256 6248fdf98f949d87d52232ddf61fada5ef02cd3e404bb222d7541a84a3b07b8a
        • MD5 SHA1 SHA512 SSDEEP

        VCRUNTIME140.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\VCRUNTIME140.dll
        • Size 116KB
        • SHA256 4d292623516f65c80482081e62d5dadb759dc16e851de5db24c3cbb57b87db83
        • MD5 SHA1 SHA512 SSDEEP

        VCRUNTIME140_1.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\VCRUNTIME140_1.dll
        • Size 48KB
        • SHA256 a113f192195f245f17389e6ecbed8005990bcb2476ddad33f7c4c6c86327afe5
        • MD5 SHA1 SHA512 SSDEEP

        _bz2.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\_bz2.pyd
        • Size 82KB
        • SHA256 00b8ca9a338d2b47285c9e56d6d893db2a999b47216756f18439997fb80a56e3
        • MD5 SHA1 SHA512 SSDEEP

        _ctypes.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\_ctypes.pyd
        • Size 121KB
        • SHA256 c148292328f0aab7863af82f54f613961e7cb95b7215f7a81cafaf45bd4c42b7
        • MD5 SHA1 SHA512 SSDEEP

        _decimal.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\_decimal.pyd
        • Size 249KB
        • SHA256 980a63f2b39cf16910f44384398e25f24482346a482addb00de42555b17d4278
        • MD5 SHA1 SHA512 SSDEEP

        _hashlib.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\_hashlib.pyd
        • Size 63KB
        • SHA256 87dd0c858620287454fd6d31d52b6a48eddbb2a08e09e8b2d9fdb0b92200d766
        • MD5 SHA1 SHA512 SSDEEP

        _lzma.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\_lzma.pyd
        • Size 155KB
        • SHA256 f5e01b516c2c23035f7703e23569dec26c5616c05a929b2580ae474a5c6722c5
        • MD5 SHA1 SHA512 SSDEEP

        _queue.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\_queue.pyd
        • Size 31KB
        • SHA256 3f8e7e6aa13b417acc78b63434fb1144e6319a010a9fc376c54d6e69b638fe4c
        • MD5 SHA1 SHA512 SSDEEP

        _socket.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\_socket.pyd
        • Size 77KB
        • SHA256 a19e3c7c03ef1b5625790b1c9c42594909311ab6df540fbf43c6aa93300ab166
        • MD5 SHA1 SHA512 SSDEEP

        _sqlite3.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\_sqlite3.pyd
        • Size 117KB
        • SHA256 ff6a2a2f38b21b7784f97d604c99961d8c07ef455f7908110a4e893835d42b76
        • MD5 SHA1 SHA512 SSDEEP

        _ssl.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\_ssl.pyd
        • Size 174KB
        • SHA256 ba5388d6a6557d431e086734a3323621dc447f63ba299b0a815e5837cf869678
        • MD5 SHA1 SHA512 SSDEEP

        _uuid.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\_uuid.pyd
        • Size 24KB
        • SHA256 e6aa7f1637e211251c9d6f467203b2b6d85e5bc2d901699f2a55af637fa89250
        • MD5 SHA1 SHA512 SSDEEP

        base_library.zip

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\base_library.zip
        • Size 1.4MB
        • SHA256 3a3bd0b5253c851449630386852ad32b9732ac1f1c1de5058b4675bd2c357228
        • MD5 SHA1 SHA512 SSDEEP

        md.cp311-win_amd64.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\charset_normalizer\md.cp311-win_amd64.pyd
        • Size 10KB
        • SHA256 62639a735008dd068142c0efca7f3d0f96f4959a52278fcf70012946e8552974
        • MD5 SHA1 SHA512 SSDEEP

        md__mypyc.cp311-win_amd64.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\charset_normalizer\md__mypyc.cp311-win_amd64.pyd
        • Size 110KB
        • SHA256 0be6ce456259ec228b1e42b8406d6eecf4c9fc4c96b9c3dc6255695f539bfdca
        • MD5 SHA1 SHA512 SSDEEP

        libcrypto-3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\libcrypto-3.dll
        • Size 5.0MB
        • SHA256 05fe080eab7fc535c51e10c1bd76a2f3e6217f9c91a25034774588881c3f99de
        • MD5 SHA1 SHA512 SSDEEP

        libffi-8.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\libffi-8.dll
        • Size 38KB
        • SHA256 eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
        • MD5 SHA1 SHA512 SSDEEP

        libssl-3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\libssl-3.dll
        • Size 768KB
        • SHA256 2e9fbcd8f7fdc13a5179533239811456554f2b3aa2fb10e1b17be0df81c79006
        • MD5 SHA1 SHA512 SSDEEP

        _psutil_windows.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\psutil\_psutil_windows.pyd
        • Size 65KB
        • SHA256 43e09408673687a787415912336ac13fcca9a7d7945b73d0c84ac4bb071e9106
        • MD5 SHA1 SHA512 SSDEEP

        python3.DLL

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\python3.DLL
        • Size 65KB
        • SHA256 db84bc052cfb121fe4db36242ba5f1d2c031b600ef5d8d752cf25b7c02b6bac6
        • MD5 SHA1 SHA512 SSDEEP

        python311.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\python311.dll
        • Size 5.5MB
        • SHA256 0817a2a657a24c0d5fbb60df56960f42fc66b3039d522ec952dab83e2d869364
        • MD5 SHA1 SHA512 SSDEEP

        pythoncom311.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\pywin32_system32\pythoncom311.dll
        • Size 654KB
        • SHA256 0fe49ec1143a0efe168809c9d48fe3e857e2ac39b19db3fd8718c56a4056696b
        • MD5 SHA1 SHA512 SSDEEP

        pywintypes311.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\pywin32_system32\pywintypes311.dll
        • Size 131KB
        • SHA256 89f2a5c6be1e70b3d895318fdd618506b8c0e9a63b6a1a4055dff4abdc89f18a
        • MD5 SHA1 SHA512 SSDEEP

        select.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\select.pyd
        • Size 29KB
        • SHA256 bae0974390945520eb99ab32486c6a964691f8f4a028ac408d98fa8fb0db7d90
        • MD5 SHA1 SHA512 SSDEEP

        sqlite3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\sqlite3.dll
        • Size 1.5MB
        • SHA256 314bba62f4a1628b986afc94c09dc29cdaf08210eae469440fbf46bcdb86d3fd
        • MD5 SHA1 SHA512 SSDEEP

        unicodedata.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\unicodedata.pyd
        • Size 1.1MB
        • SHA256 37c68617fa02a2cadced17ef724e2d450ef12a8a37215da789a4679fde1c5c02
        • MD5 SHA1 SHA512 SSDEEP

        win32api.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI6522\win32\win32api.pyd
        • Size 130KB
        • SHA256 fae5323e2119a8f678055f4244177b5806c7b6b171b1945168f685631b913664
        • MD5 SHA1 SHA512 SSDEEP

        __PSScriptPolicyTest_aqpzi3ni.m0v.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_aqpzi3ni.m0v.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        downloads_db

        • Path C:\Users\Admin\AppData\Local\Temp\downloads_db
        • Size 124KB
        • SHA256 a4cd72e529e60b5f74c50e4e5b159efaf80625f23534dd15a28203760b8b28ab
        • MD5 SHA1 SHA512 SSDEEP

        downloads_db

        • Path C:\Users\Admin\AppData\Local\Temp\downloads_db
        • Size 160KB
        • SHA256 e187946249cd390a3c1cf5d4e3b0d8f554f9acdc416bf4e7111fff217bb08855
        • MD5 SHA1 SHA512 SSDEEP

        cookies.txt

        • Path C:\Users\Admin\AppData\Local\Temp\result\cookies.txt
        • Size 258B
        • SHA256 d9eda6c334c703a546bc6ea90d44bb41bbe5f26ee2d72e684c08272eff64d9f5
        • MD5 SHA1 SHA512

        INSTALLER

        • Path C:\Users\Admin\AppData\Roaming\UWRyTewt\Lib\site-packages\DateTime-5.1.dist-info\INSTALLER
        • Size 4B
        • SHA256 ceebae7b8927a3227e5303cf5e0f1f7b34bb542ad7250ac03fbcde36ec2f1508
        • MD5 SHA1 SHA512

        __init__.py

        • Path C:\Users\Admin\AppData\Roaming\UWRyTewt\Lib\site-packages\pyasn1\codec\der\__init__.py
        • Size 59B
        • SHA256 1040e52584b5ef6107dfd19489d37ff056e435c598f4e555f1edf4015e7ca67d
        • MD5 SHA1 SHA512

        Set-up.exe

        • Path C:\Users\Admin\AppData\Roaming\UWRyTewt\Set-up.exe
        • Size 13.7MB
        • SHA256 394924104bb1ecf788a29038a02a6f970903c2accb06145ea74a57c4b012a37b
        • MD5 SHA1 SHA512 SSDEEP

        vcruntime140_1.dll

        • Path C:\Users\Admin\AppData\Roaming\UWRyTewt\vcruntime140_1.dll
        • Size 48KB
        • SHA256 e4b533a94e02c574780e4b333fcf0889f65ed00d39e32c0fbbda2116f185873f
        • MD5 SHA1 SHA512 SSDEEP

        memory/3680-14-0x00000163B1B70000-0x00000163B1B84000-memory.dmp

        memory/3680-13-0x00000163B18F0000-0x00000163B1916000-memory.dmp

        memory/3680-12-0x00007FF9F5A70000-0x00007FF9F6531000-memory.dmp

        memory/3680-18-0x00007FF9F5A70000-0x00007FF9F6531000-memory.dmp

        memory/3680-0-0x00007FF9F5A73000-0x00007FF9F5A75000-memory.dmp

        memory/3680-15-0x00007FF9F5A70000-0x00007FF9F6531000-memory.dmp

        memory/3680-16-0x00007FF9F5A73000-0x00007FF9F5A75000-memory.dmp

        memory/3680-17-0x00007FF9F5A70000-0x00007FF9F6531000-memory.dmp

        memory/3680-11-0x00007FF9F5A70000-0x00007FF9F6531000-memory.dmp

        memory/3680-6-0x00000163B1680000-0x00000163B16A2000-memory.dmp

        memory/3680-4235-0x00007FF9F5A70000-0x00007FF9F6531000-memory.dmp

        memory/3680-913-0x00007FF9F5A70000-0x00007FF9F6531000-memory.dmp

        memory/3680-22-0x00000163B1950000-0x00000163B195A000-memory.dmp

        memory/3680-21-0x00000163B1BD0000-0x00000163B1BE2000-memory.dmp

        memory/3680-20-0x00007FF9F5A70000-0x00007FF9F6531000-memory.dmp

        memory/3680-19-0x00007FF9F5A70000-0x00007FF9F6531000-memory.dmp