Analysis

  • max time kernel
    120s
  • max time network
    121s
  • 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

    a8a139078f73f1204b84496bcb6bfdda9dafbdd26d35e40ddf131f3efb279c77.exe

  • Size

    656KB

  • MD5

    0709a253bbcfbdc08f20e0868df75dbb

  • SHA1

    9827c4481d812e94753a5c597956bb36c4fc40f7

  • SHA256

    a8a139078f73f1204b84496bcb6bfdda9dafbdd26d35e40ddf131f3efb279c77

  • SHA512

    366afbb1e3bd3ce50bbab09e170b99fd963defc614336a55e88860e6487e1d6789e193cb453e0fdd011747ec3a7d111e1f33681d6237c6177b74ccce2ccaab00

  • SSDEEP

    12288:csZr3np2QL32ikCaUS4csRBse6sfWbAA:5ZbQy3k94cunZebB

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\a8a139078f73f1204b84496bcb6bfdda9dafbdd26d35e40ddf131f3efb279c77.exe
    "C:\Users\Admin\AppData\Local\Temp\a8a139078f73f1204b84496bcb6bfdda9dafbdd26d35e40ddf131f3efb279c77.exe"
    1⤵
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2652
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2652 -s 1736
      2⤵
        PID:2164

    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

      ea4f5373bf4b3f100623198f139b4242

      SHA1

      0b80e8f85dba60a7fb6e4a9a4d97fa8f4d506400

      SHA256

      1edb92f09b93bc38f1fdb287d4d428db099190aa362d97f2fc569a1c8eade919

      SHA512

      1c88bdae83a23e67442d5dcf8387392fb54a949b19a331c83759508dc00dcab50950491e8f83670a6c152950543e1363b46a907ac940432748462884b004d33f

    • C:\Users\Admin\AppData\Local\Temp\Cab3258.tmp
      Filesize

      65KB

      MD5

      ac05d27423a85adc1622c714f2cb6184

      SHA1

      b0fe2b1abddb97837ea0195be70ab2ff14d43198

      SHA256

      c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

      SHA512

      6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

    • C:\Users\Admin\AppData\Local\Temp\Tar3EBA.tmp
      Filesize

      171KB

      MD5

      9c0c641c06238516f27941aa1166d427

      SHA1

      64cd549fb8cf014fcd9312aa7a5b023847b6c977

      SHA256

      4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

      SHA512

      936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

    • memory/2652-0-0x0000000000D90000-0x0000000000E3A000-memory.dmp
      Filesize

      680KB

    • memory/2652-1-0x000007FEF5B40000-0x000007FEF652C000-memory.dmp
      Filesize

      9.9MB

    • memory/2652-2-0x0000000000570000-0x00000000005F0000-memory.dmp
      Filesize

      512KB

    • memory/2652-74-0x000007FEF5B40000-0x000007FEF652C000-memory.dmp
      Filesize

      9.9MB