Analysis

  • max time kernel
    52s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    15-04-2022 05:28

General

  • Target

    02151539f5f9f89a9021ea2914bb520772ae1c8deb938b0646c4a319367e4744.exe

  • Size

    96KB

  • MD5

    b85e836c181e4b209d56c0d2df72d53e

  • SHA1

    e3bf80c50892d44db8391f00b3329863a9d19993

  • SHA256

    02151539f5f9f89a9021ea2914bb520772ae1c8deb938b0646c4a319367e4744

  • SHA512

    0b767f55b1033e1340c0a98c0a880bdac102f6de79520cc868c357c1d0e54de70f76798398d16167dfed8594a83ff012050cfc57aa9c63f1343f9d12160220bb

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Windows security modification 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in System32 directory 7 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\02151539f5f9f89a9021ea2914bb520772ae1c8deb938b0646c4a319367e4744.exe
    "C:\Users\Admin\AppData\Local\Temp\02151539f5f9f89a9021ea2914bb520772ae1c8deb938b0646c4a319367e4744.exe"
    1⤵
    • Windows security modification
    • Drops file in System32 directory
    • Suspicious use of WriteProcessMemory
    PID:1668
    • C:\Windows\system32\cmd.exe
      "cmd.exe" /c w3wpdiag.exe -install
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:772
      • C:\Windows\system32\w3wpdiag.exe
        w3wpdiag.exe -install
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        PID:640
    • C:\Windows\system32\cmd.exe
      "cmd.exe" /c del *.InstallLog *.InstallState
      2⤵
        PID:1548
    • C:\Windows\system32\w3wpdiag.exe
      "C:\Windows\system32\w3wpdiag.exe"
      1⤵
      • Executes dropped EXE
      • Checks whether UAC is enabled
      PID:1008

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\System32\w3wpdiag.exe

      Filesize

      58KB

      MD5

      371b4380080e3d94ffcae1a7e9a0d5e2

      SHA1

      f7088075d1c798f27b0d269c97dc877ff16f1401

      SHA256

      2986bae15cfa78b919d21dc070be944e949a027e8047a812026e35c66ab17353

      SHA512

      990c3b43a9cdaa45432d2934aac005042f72ee4d1f441c474c07fa28e950c926e2474263bbc4bbd35aa74e4f6819f7194066f1f94dd300f2b04eee82bb7f5fb7

    • C:\Windows\System32\w3wpdiag.exe

      Filesize

      58KB

      MD5

      371b4380080e3d94ffcae1a7e9a0d5e2

      SHA1

      f7088075d1c798f27b0d269c97dc877ff16f1401

      SHA256

      2986bae15cfa78b919d21dc070be944e949a027e8047a812026e35c66ab17353

      SHA512

      990c3b43a9cdaa45432d2934aac005042f72ee4d1f441c474c07fa28e950c926e2474263bbc4bbd35aa74e4f6819f7194066f1f94dd300f2b04eee82bb7f5fb7

    • C:\Windows\system32\InstallUtil.InstallLog

      Filesize

      580B

      MD5

      3fe3db751374c86fcc44d7e14b9c11f9

      SHA1

      4ec4a7d01540a403a52f1bb48d9fc85f9066617e

      SHA256

      4ffb0294f29222071c7b0f3c321d625f211024370d3b11ac71e80ad9936032a5

      SHA512

      e5761e7f51291215aee6cb4bef734b2bdcc98e74d50761350ad033b4109a75b1dfc4ec9e76ff0d10adeeee349a54a266485f7c38e3e2f89b3fc8c31e8bf9f1e3

    • C:\Windows\system32\System.Web.Helpers.dll

      Filesize

      135KB

      MD5

      4f13bec852002ea7208deaf82b53f90d

      SHA1

      fffd7f988637d3f79bad6e6fb725f00aa8558044

      SHA256

      6bdd4e1a2887176b20bdc2d710c5d81b68b18e7006a8281f4973e9e31e25f40f

      SHA512

      2216dc754a787bc159e9bc363f8a57ee02caadce16dae41e73ce27cc37d7eef956983bf0dca7c78ef988030d69c4977a067b32667111ca10926a7d684771bf40

    • C:\Windows\system32\w3wpdiag.InstallLog

      Filesize

      561B

      MD5

      99b0f0d65146dadcd19adad9541f3d42

      SHA1

      1e5eb63e99ee18b4f91c66b350c2628f64e7870d

      SHA256

      6dcc3fe3efb8f9aab0615b676d986cb75e765fc95cd04539964206050b80b7b1

      SHA512

      3ca51387278296c7a541ee1ba9cccce00b7b667b75bd6a131defc60edfaf2b1c06096806881a3b9e9a9e4eba99e8e5b5f537e642463cd403e47190c894355488

    • C:\Windows\system32\w3wpdiag.InstallState

      Filesize

      7KB

      MD5

      362ce475f5d1e84641bad999c16727a0

      SHA1

      6b613c73acb58d259c6379bd820cca6f785cc812

      SHA256

      1f78f1056761c6ebd8965ed2c06295bafa704b253aff56c492b93151ab642899

      SHA512

      7630e1629cf4abecd9d3ddea58227b232d5c775cb480967762a6a6466be872e1d57123b08a6179fe1cfbc09403117d0f81bc13724f259a1d25c1325f1eac645b

    • C:\Windows\system32\w3wpdiag.exe

      Filesize

      58KB

      MD5

      371b4380080e3d94ffcae1a7e9a0d5e2

      SHA1

      f7088075d1c798f27b0d269c97dc877ff16f1401

      SHA256

      2986bae15cfa78b919d21dc070be944e949a027e8047a812026e35c66ab17353

      SHA512

      990c3b43a9cdaa45432d2934aac005042f72ee4d1f441c474c07fa28e950c926e2474263bbc4bbd35aa74e4f6819f7194066f1f94dd300f2b04eee82bb7f5fb7

    • memory/640-61-0x0000000000A60000-0x0000000000A74000-memory.dmp

      Filesize

      80KB

    • memory/640-65-0x0000000000370000-0x0000000000372000-memory.dmp

      Filesize

      8KB

    • memory/1008-64-0x0000000000B90000-0x0000000000BB6000-memory.dmp

      Filesize

      152KB

    • memory/1008-66-0x0000000019B00000-0x0000000019B02000-memory.dmp

      Filesize

      8KB

    • memory/1668-54-0x0000000001260000-0x000000000127E000-memory.dmp

      Filesize

      120KB

    • memory/1668-56-0x0000000000190000-0x00000000001B6000-memory.dmp

      Filesize

      152KB

    • memory/1668-55-0x000000001AEC0000-0x000000001AEC2000-memory.dmp

      Filesize

      8KB