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 01:09

General

  • Target

    a9cc9231db913f25361ff54855ec7221e72879d2e428befb87a5a6bdffe08de1.exe

  • Size

    657KB

  • MD5

    0d466a0fb178aca473b2888b5734287a

  • SHA1

    d1cb2e9a2125ff2b90adc09cc17a2c36d2a5d1d7

  • SHA256

    a9cc9231db913f25361ff54855ec7221e72879d2e428befb87a5a6bdffe08de1

  • SHA512

    653d7a88cff389697bdb363737524a0c0a9eae6742e873d0d1c7a21fb85f46c9e533f2b97fc15bc7c30480e32472d8fbadd7893cc4d2627f0fa762223a90b515

  • SSDEEP

    6144:rGjsXpRN4nQ48gSQ/uuCInHLhJI4FY/ixjci6ychf8xalGQGtSV41kJDsTDDpBnO:is5EnpgQL32ikCaUS4csRBse6sfWfAA

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\a9cc9231db913f25361ff54855ec7221e72879d2e428befb87a5a6bdffe08de1.exe
    "C:\Users\Admin\AppData\Local\Temp\a9cc9231db913f25361ff54855ec7221e72879d2e428befb87a5a6bdffe08de1.exe"
    1⤵
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1432
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1432 -s 1724
      2⤵
        PID:2636

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Defense Evasion

    Subvert Trust Controls

    1
    T1553

    Install Root Certificate

    1
    T1553.004

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      344B

      MD5

      4b3254e7f9948b6028748bfc72924c66

      SHA1

      1fcf46978e9bb119010fb493c573d3807352d55b

      SHA256

      55c1b01512ccf6694ffcd22937adc54952c0ff8662b8604a76145dc11408ce10

      SHA512

      11330c553c269be5cc687a65f8aa4e3b042027961901bb82b3db2bfeba2b0f2508d6b8f2f6174f6258704df3ffb9782225238947b6ed5c2c6c5545e2516094f3

    • C:\Users\Admin\AppData\Local\Temp\Cab4730.tmp
      Filesize

      65KB

      MD5

      ac05d27423a85adc1622c714f2cb6184

      SHA1

      b0fe2b1abddb97837ea0195be70ab2ff14d43198

      SHA256

      c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

      SHA512

      6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

    • C:\Users\Admin\AppData\Local\Temp\Tar484B.tmp
      Filesize

      171KB

      MD5

      9c0c641c06238516f27941aa1166d427

      SHA1

      64cd549fb8cf014fcd9312aa7a5b023847b6c977

      SHA256

      4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

      SHA512

      936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

    • memory/1432-0-0x00000000002E0000-0x000000000038A000-memory.dmp
      Filesize

      680KB

    • memory/1432-1-0x000007FEF54B0000-0x000007FEF5E9C000-memory.dmp
      Filesize

      9.9MB

    • memory/1432-2-0x000000001AF90000-0x000000001B010000-memory.dmp
      Filesize

      512KB

    • memory/1432-64-0x000007FEF54B0000-0x000007FEF5E9C000-memory.dmp
      Filesize

      9.9MB

    • memory/1432-65-0x000000001AF90000-0x000000001B010000-memory.dmp
      Filesize

      512KB