Analysis

  • max time kernel
    117s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    22-01-2024 01:13

General

  • Target

    b9bd8fe0b33b5937c740db9992833a7262d073d8cf3ec4c32901a57ed918b12b.exe

  • Size

    653KB

  • MD5

    2f24dee681ff1eb62a5d7b2698aaf5ca

  • SHA1

    e3d687669640208a6c1d3c2c1f5c80debdf392c6

  • SHA256

    b9bd8fe0b33b5937c740db9992833a7262d073d8cf3ec4c32901a57ed918b12b

  • SHA512

    20c3b334ee470613b3c5c53682720314ebc74bae74a1c5e2776ce39c23a0c81a7b71c296eccdd7663e1bae0d1a54c32b4e87bd6ee6a47b08f5d653d6641ebc84

  • SSDEEP

    12288:JT4on1TyxGQL32ikCaUS4csRBse6sfWiAA:JT42T7y3k94cunZeiB

Score
10/10

Malware Config

Signatures

  • Detects Echelon Stealer payload 2 IoCs
  • Echelon

    Echelon is a .NET stealer that targets passwords from browsers, email and cryptocurrency clients.

  • Looks up external IP address via web service 2 IoCs

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

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b9bd8fe0b33b5937c740db9992833a7262d073d8cf3ec4c32901a57ed918b12b.exe
    "C:\Users\Admin\AppData\Local\Temp\b9bd8fe0b33b5937c740db9992833a7262d073d8cf3ec4c32901a57ed918b12b.exe"
    1⤵
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2756
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2756 -s 1728
      2⤵
        PID:572

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
      Filesize

      344B

      MD5

      fd9411e63ebdf44d3a79dfa311ce0283

      SHA1

      7c005f917d5b2ccfb0614776ff1d2b8dcb55698f

      SHA256

      7ad0f8fa2ee21ad61c2cab48c402e21247c039612b870874a009a30d49e9b0c8

      SHA512

      ec24b56dfaba76c6a4754423c6e400ae6fe66ecfb75f880780f5f692348d6df810d4f5cbba7cf9cd24b3c4ac146ef3ff3ffef9ddbd6b7048859bba41bf5157d8

    • C:\Users\Admin\AppData\Local\Temp\Cab66EF.tmp
      Filesize

      65KB

      MD5

      ac05d27423a85adc1622c714f2cb6184

      SHA1

      b0fe2b1abddb97837ea0195be70ab2ff14d43198

      SHA256

      c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

      SHA512

      6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

    • C:\Users\Admin\AppData\Local\Temp\Tar6760.tmp
      Filesize

      171KB

      MD5

      9c0c641c06238516f27941aa1166d427

      SHA1

      64cd549fb8cf014fcd9312aa7a5b023847b6c977

      SHA256

      4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

      SHA512

      936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

    • memory/2756-0-0x0000000000C00000-0x0000000000CAA000-memory.dmp
      Filesize

      680KB

    • memory/2756-1-0x000007FEF5D90000-0x000007FEF677C000-memory.dmp
      Filesize

      9.9MB

    • memory/2756-2-0x000000001AE10000-0x000000001AE90000-memory.dmp
      Filesize

      512KB

    • memory/2756-64-0x000007FEF5D90000-0x000007FEF677C000-memory.dmp
      Filesize

      9.9MB

    • memory/2756-65-0x000000001AE10000-0x000000001AE90000-memory.dmp
      Filesize

      512KB