Analysis

  • max time kernel
    289s
  • max time network
    267s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/06/2023, 08:46

General

  • Target

    portmaster-installer.exe

  • Size

    6.2MB

  • MD5

    0f3707bc9fcf18c583a10a72cc811a06

  • SHA1

    d9f373016a74cc0572287936b00b03ac84607696

  • SHA256

    61cb59f25c4fcb130df0e925f6a1df21569379280c501dab1754080a24260856

  • SHA512

    003822ab7a65b11dfb6af7e3f0bbfe4b9d30dfb7800a247d0a2c87e13b857e5405704177dc0f3a8b2970b7ace2548b30b52fd9cc035f7c9202567b2364a4658b

  • SSDEEP

    196608:7ivI8neHjTFNgk7oAaI3YoJHj0m6i8ecFlUiJ0LxyGlK:aKjbgtAayhwDi8kiiLxyKK

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 5 IoCs
  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\portmaster-installer.exe
    "C:\Users\Admin\AppData\Local\Temp\portmaster-installer.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:4400
    • C:\ProgramData\Safing\Portmaster\portmaster-start.exe
      C:\ProgramData\Safing\Portmaster\portmaster-start.exe clean-structure --data=C:\ProgramData\Safing\Portmaster
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      PID:616
    • C:\ProgramData\Safing\Portmaster\portmaster-start.exe
      C:\ProgramData\Safing\Portmaster\portmaster-start.exe update --data=C:\ProgramData\Safing\Portmaster
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      PID:4304

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\Safing\Portmaster\portmaster-start.exe

    Filesize

    12.3MB

    MD5

    e98dc4b386e2e886d30210f63e9aa6d4

    SHA1

    16ff70ecc10f8dbb0e8919850b1a478569860f45

    SHA256

    9bce5790c27e773b3f4616057c579ea1625ea68f58fba509a7e91937210ac7fc

    SHA512

    1aa12ff742d2775f1974591da5eac55ee8e81a0448ec1afc3df1ae506a965ed75b6262b8805e61bb14061b13512a57f9e079c5659600bf664794c7c057159f43

  • C:\ProgramData\Safing\Portmaster\portmaster-start.exe

    Filesize

    12.3MB

    MD5

    e98dc4b386e2e886d30210f63e9aa6d4

    SHA1

    16ff70ecc10f8dbb0e8919850b1a478569860f45

    SHA256

    9bce5790c27e773b3f4616057c579ea1625ea68f58fba509a7e91937210ac7fc

    SHA512

    1aa12ff742d2775f1974591da5eac55ee8e81a0448ec1afc3df1ae506a965ed75b6262b8805e61bb14061b13512a57f9e079c5659600bf664794c7c057159f43

  • C:\ProgramData\Safing\Portmaster\portmaster-start.exe

    Filesize

    12.3MB

    MD5

    e98dc4b386e2e886d30210f63e9aa6d4

    SHA1

    16ff70ecc10f8dbb0e8919850b1a478569860f45

    SHA256

    9bce5790c27e773b3f4616057c579ea1625ea68f58fba509a7e91937210ac7fc

    SHA512

    1aa12ff742d2775f1974591da5eac55ee8e81a0448ec1afc3df1ae506a965ed75b6262b8805e61bb14061b13512a57f9e079c5659600bf664794c7c057159f43

  • C:\ProgramData\Safing\Portmaster\portmaster-start.exe

    Filesize

    12.3MB

    MD5

    e98dc4b386e2e886d30210f63e9aa6d4

    SHA1

    16ff70ecc10f8dbb0e8919850b1a478569860f45

    SHA256

    9bce5790c27e773b3f4616057c579ea1625ea68f58fba509a7e91937210ac7fc

    SHA512

    1aa12ff742d2775f1974591da5eac55ee8e81a0448ec1afc3df1ae506a965ed75b6262b8805e61bb14061b13512a57f9e079c5659600bf664794c7c057159f43

  • C:\ProgramData\Safing\Portmaster\updates\all\intel\intel.json

    Filesize

    312B

    MD5

    ac8583f5524a9b80bee38758a73dd1c0

    SHA1

    460b5e270830e541f4fefd5cf743a68d4d20250d

    SHA256

    4547d069576c23260d632af5703a7f1684279cb9cb19f8347ea0ea0916c4664f

    SHA512

    26898616799b3eab201613054833f68c8537ae6b9ba5d9e339f8d275c04b13dc0f965a647198584c036596d2ea1a057acfe127c4bada2f46573544b23da19528

  • C:\ProgramData\Safing\Portmaster\updates\stable.json

    Filesize

    2KB

    MD5

    492d66871a379c1dfee7fd354307d52a

    SHA1

    c545e50a56f1a7c8d21e28cce3cb1eefb8bf4ccd

    SHA256

    595ff7d3a7af80b80b796445510c5604207a9f1416383ca3bcaf8965399955fc

    SHA512

    c7c5fa9ef460a8f8e97bea085f8ad0dad933473fb50249d0aeefc65205ff9d2c86cb7693762a1237dc7991b12ba89b3c2501b0b34ff4d08124ae56a4cf674273

  • C:\ProgramData\Safing\Portmaster\updates\stable.json.sig

    Filesize

    442B

    MD5

    fcfe5491c9121d6143dd10dd6e5f27c4

    SHA1

    1de0d90c4d0d13f2f11455253d9472682e1757b5

    SHA256

    418210f6cd127a5e28e12828666efa874dc3024e61ca33df351760cd9c4eed78

    SHA512

    058291d2b5d9427e8a93a45a65161cb5480e7b059fa2ec63411137eb72bb0394c00be60480d21c6ccf8548bfe741416f026238486fede61bfbb5551dcdacd5c1

  • C:\Users\Admin\AppData\Local\Temp\nsuA000.tmp\System.dll

    Filesize

    12KB

    MD5

    8cf2ac271d7679b1d68eefc1ae0c5618

    SHA1

    7cc1caaa747ee16dc894a600a4256f64fa65a9b8

    SHA256

    6950991102462d84fdc0e3b0ae30c95af8c192f77ce3d78e8d54e6b22f7c09ba

    SHA512

    ce828fb9ecd7655cc4c974f78f209d3326ba71ced60171a45a437fc3fff3bd0d69a0997adaca29265c7b5419bdea2b17f8cc8ceae1b8ce6b22b7ed9120bb5ad3

  • C:\Users\Admin\AppData\Local\Temp\nsuA000.tmp\nsDialogs.dll

    Filesize

    9KB

    MD5

    ec9640b70e07141febbe2cd4cc42510f

    SHA1

    64a5e4b90e5fe62aa40e7ac9e16342ed066f0306

    SHA256

    c5ba017732597a82f695b084d1aa7fe3b356168cc66105b9392a9c5b06be5188

    SHA512

    47605b217313c7fe6ce3e9a65da156a2fba8d91e4ed23731d3c5e432dd048ff5c8f9ae8bb85a6a39e1eac4e1b6a22862aa72d3b1b1c8255858997cdd4db5d1fe

  • C:\Users\Admin\AppData\Local\Temp\nsuA000.tmp\nsExec.dll

    Filesize

    7KB

    MD5

    f27689c513e7d12c7c974d5f8ef710d6

    SHA1

    e305f2a2898d765a64c82c449dfb528665b4a892

    SHA256

    1f18f4126124b0551f3dbcd0fec7f34026f930ca509f04435657cedc32ae8c47

    SHA512

    734e9f3989ee47a86bee16838df7a09353c7fe085a09d77e70d281b21c5477b0b061616e72e8ac8fcb3dda1df0d5152f54dcc4c5a77f90fbf0f857557bf02fbc

  • C:\Users\Admin\AppData\Local\Temp\nsuA000.tmp\nsExec.dll

    Filesize

    7KB

    MD5

    f27689c513e7d12c7c974d5f8ef710d6

    SHA1

    e305f2a2898d765a64c82c449dfb528665b4a892

    SHA256

    1f18f4126124b0551f3dbcd0fec7f34026f930ca509f04435657cedc32ae8c47

    SHA512

    734e9f3989ee47a86bee16838df7a09353c7fe085a09d77e70d281b21c5477b0b061616e72e8ac8fcb3dda1df0d5152f54dcc4c5a77f90fbf0f857557bf02fbc

  • C:\Users\Admin\AppData\Local\Temp\nsuA000.tmp\nsExec.dll

    Filesize

    7KB

    MD5

    f27689c513e7d12c7c974d5f8ef710d6

    SHA1

    e305f2a2898d765a64c82c449dfb528665b4a892

    SHA256

    1f18f4126124b0551f3dbcd0fec7f34026f930ca509f04435657cedc32ae8c47

    SHA512

    734e9f3989ee47a86bee16838df7a09353c7fe085a09d77e70d281b21c5477b0b061616e72e8ac8fcb3dda1df0d5152f54dcc4c5a77f90fbf0f857557bf02fbc