Analysis

  • max time kernel
    120s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

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

General

  • Target

    a5c068511e7487b6744f53abf21f09a23345a287a7858850e564143c56b5198d.exe

  • Size

    659KB

  • MD5

    e00956f5cb4af999fd7b334fa4e82543

  • SHA1

    d53769bf9dd345a7fb8b5c8c15e840cf7ee0b1e9

  • SHA256

    a5c068511e7487b6744f53abf21f09a23345a287a7858850e564143c56b5198d

  • SHA512

    4ba8d9b6c3b7c5aa53132e38c0bde4fb1877656ef49a0c24676a363ea4a5aac8514cd91ea23049acb2b48a63c7fd4dba2b2efce8ee196e46015bea6d909a8771

  • SSDEEP

    12288:DA03baVb7aXESXQL32ikCaUS4csRBse6sfWEAA:DA03baVbOnXy3k94cunZeEB

Score
10/10

Malware Config

Signatures

  • Detects Echelon Stealer payload 1 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\a5c068511e7487b6744f53abf21f09a23345a287a7858850e564143c56b5198d.exe
    "C:\Users\Admin\AppData\Local\Temp\a5c068511e7487b6744f53abf21f09a23345a287a7858850e564143c56b5198d.exe"
    1⤵
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2512
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2512 -s 1644
      2⤵
        PID:1504

    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

      a7c2a8a0648db3c9c9e19fa8d8310d4c

      SHA1

      82ff8c16c6e4e659584b07942a371bb08ea345e7

      SHA256

      183363509e047ce09f7be66db2f3908e3b6eed80ed8445eac8892d691a9209be

      SHA512

      26c9d80d4b0bdf8ceba34899d2234c32726e86e6e89bd4ab8e27b0344f6a4559426d4f2860d295be3a3e13dd01c1164e9ae4ee23eca6cf7ba2e86ae9487e9225

    • C:\Users\Admin\AppData\Local\Temp\Cab7ADD.tmp
      Filesize

      65KB

      MD5

      ac05d27423a85adc1622c714f2cb6184

      SHA1

      b0fe2b1abddb97837ea0195be70ab2ff14d43198

      SHA256

      c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

      SHA512

      6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

    • C:\Users\Admin\AppData\Local\Temp\Tar7B5C.tmp
      Filesize

      171KB

      MD5

      9c0c641c06238516f27941aa1166d427

      SHA1

      64cd549fb8cf014fcd9312aa7a5b023847b6c977

      SHA256

      4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

      SHA512

      936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

    • memory/2512-0-0x0000000001390000-0x000000000143C000-memory.dmp
      Filesize

      688KB

    • memory/2512-1-0x000007FEF5C20000-0x000007FEF660C000-memory.dmp
      Filesize

      9.9MB

    • memory/2512-2-0x000000001B040000-0x000000001B0C0000-memory.dmp
      Filesize

      512KB

    • memory/2512-74-0x000007FEF5C20000-0x000007FEF660C000-memory.dmp
      Filesize

      9.9MB

    • memory/2512-75-0x000000001B040000-0x000000001B0C0000-memory.dmp
      Filesize

      512KB