Analysis

  • max time kernel
    47s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    25-12-2023 18:20

General

  • Target

    340e9a1bcc5ae00b5251f8c5e4bcae10.exe

  • Size

    414KB

  • MD5

    340e9a1bcc5ae00b5251f8c5e4bcae10

  • SHA1

    a083255dced4da814db8b064b40324e1c755f6a8

  • SHA256

    9e8945e1f0569c2fddfad7e0a580508cc85a7ec431b634ea070cdfc8c80cc6cf

  • SHA512

    521cb325d8d7b61788419694f028e830b423d02b5395dadc16e02e7d08b4ca75feb033edfd055eb158fd0f3e315a07b44dda20a4754ac4f4172a3c5741595405

  • SSDEEP

    3072:Wri/gSS018Jn8Q5CJ2ZezucNTl2B03TirJjMmCtxBu6Z91EqySTG1fwkYopl9/1/:ZgSS0G4IEzuc72B0witOCnGS8t7Fh

Malware Config

Signatures

  • A310logger

    A310 Logger is a .NET stealer/logger targeting passwords from browsers and email clients.

  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 7 IoCs
  • A310logger Executable 8 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Looks up geolocation information via web service

    Uses a legitimate geolocation service to find the infected system's geolocation info.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\340e9a1bcc5ae00b5251f8c5e4bcae10.exe
    "C:\Users\Admin\AppData\Local\Temp\340e9a1bcc5ae00b5251f8c5e4bcae10.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2520
    • C:\Users\Admin\AppData\Local\Temp\340e9a1bcc5ae00b5251f8c5e4bcae10.exe
      "C:\Users\Admin\AppData\Local\Temp\340e9a1bcc5ae00b5251f8c5e4bcae10.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2996
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
        3⤵
        • Loads dropped DLL
        • Accesses Microsoft Outlook profiles
        • Checks processor information in registry
        • Suspicious use of WriteProcessMemory
        • outlook_office_path
        • outlook_win_path
        PID:2804
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1444
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
        3⤵
          PID:2072
          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
            "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"
            4⤵
              PID:2384
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
            "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
            3⤵
              PID:2504

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          344B

          MD5

          6c6a5b5d4938b4ec616916214840e503

          SHA1

          ff30f0ee02bb197b5d7b35c0c8fe203d18abddbd

          SHA256

          08a18201e57738194f3b800aaaa87a2ae674585d0fc317221371a062cb533e10

          SHA512

          c31d0f2f5f1d3e9110447dbacd217b459274a66f5b3b3f88d3c957eb7f6dae983b48454852a92adace922bc841eb4b5b4c7410d1208e7101d5829143ee96dd8c

        • C:\Users\Admin\AppData\Local\Temp\Cab1D52.tmp

          Filesize

          65KB

          MD5

          ac05d27423a85adc1622c714f2cb6184

          SHA1

          b0fe2b1abddb97837ea0195be70ab2ff14d43198

          SHA256

          c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

          SHA512

          6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

        • C:\Users\Admin\AppData\Local\Temp\Tar35E4.tmp

          Filesize

          171KB

          MD5

          9c0c641c06238516f27941aa1166d427

          SHA1

          64cd549fb8cf014fcd9312aa7a5b023847b6c977

          SHA256

          4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

          SHA512

          936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe

          Filesize

          20KB

          MD5

          1bad0cbd09b05a21157d8255dc801778

          SHA1

          ff284bba12f011b72e20d4c9537d6c455cdbf228

          SHA256

          218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9

          SHA512

          4fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533

        • memory/1444-116-0x000007FEF5140000-0x000007FEF5ADD000-memory.dmp

          Filesize

          9.6MB

        • memory/1444-115-0x000007FEF5140000-0x000007FEF5ADD000-memory.dmp

          Filesize

          9.6MB

        • memory/1444-119-0x000007FEF5140000-0x000007FEF5ADD000-memory.dmp

          Filesize

          9.6MB

        • memory/2072-135-0x0000000073D00000-0x00000000742AB000-memory.dmp

          Filesize

          5.7MB

        • memory/2072-164-0x0000000073D00000-0x00000000742AB000-memory.dmp

          Filesize

          5.7MB

        • memory/2072-132-0x0000000000400000-0x0000000000418000-memory.dmp

          Filesize

          96KB

        • memory/2072-128-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2072-136-0x0000000073D00000-0x00000000742AB000-memory.dmp

          Filesize

          5.7MB

        • memory/2072-134-0x0000000000400000-0x0000000000418000-memory.dmp

          Filesize

          96KB

        • memory/2384-162-0x000007FEF47A0000-0x000007FEF513D000-memory.dmp

          Filesize

          9.6MB

        • memory/2384-163-0x000007FEF47A0000-0x000007FEF513D000-memory.dmp

          Filesize

          9.6MB

        • memory/2384-160-0x000007FEF47A0000-0x000007FEF513D000-memory.dmp

          Filesize

          9.6MB

        • memory/2384-161-0x0000000002070000-0x00000000020F0000-memory.dmp

          Filesize

          512KB

        • memory/2384-165-0x000007FEF47A0000-0x000007FEF513D000-memory.dmp

          Filesize

          9.6MB

        • memory/2504-167-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2520-1-0x0000000000320000-0x0000000000420000-memory.dmp

          Filesize

          1024KB

        • memory/2520-2-0x0000000000160000-0x0000000000162000-memory.dmp

          Filesize

          8KB

        • memory/2804-12-0x0000000000400000-0x0000000000418000-memory.dmp

          Filesize

          96KB

        • memory/2804-20-0x0000000000400000-0x0000000000418000-memory.dmp

          Filesize

          96KB

        • memory/2804-79-0x0000000073DE0000-0x000000007438B000-memory.dmp

          Filesize

          5.7MB

        • memory/2804-18-0x0000000000400000-0x0000000000418000-memory.dmp

          Filesize

          96KB

        • memory/2804-117-0x0000000073DE0000-0x000000007438B000-memory.dmp

          Filesize

          5.7MB

        • memory/2804-8-0x0000000000400000-0x0000000000418000-memory.dmp

          Filesize

          96KB

        • memory/2804-10-0x0000000000400000-0x0000000000418000-memory.dmp

          Filesize

          96KB

        • memory/2804-22-0x0000000000400000-0x0000000000418000-memory.dmp

          Filesize

          96KB

        • memory/2804-14-0x0000000000400000-0x0000000000418000-memory.dmp

          Filesize

          96KB

        • memory/2804-24-0x0000000073DE0000-0x000000007438B000-memory.dmp

          Filesize

          5.7MB

        • memory/2804-25-0x0000000001F20000-0x0000000001F60000-memory.dmp

          Filesize

          256KB

        • memory/2804-23-0x0000000073DE0000-0x000000007438B000-memory.dmp

          Filesize

          5.7MB

        • memory/2804-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2996-3-0x0000000000400000-0x0000000000430000-memory.dmp

          Filesize

          192KB

        • memory/2996-5-0x0000000000400000-0x0000000000430000-memory.dmp

          Filesize

          192KB

        • memory/2996-78-0x0000000000400000-0x0000000000430000-memory.dmp

          Filesize

          192KB