Analysis

  • max time kernel
    150s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    01-01-2024 16:32

General

  • Target

    NNHK09090.exe

  • Size

    266KB

  • MD5

    c361fd420eaaf02d8d00849565dbe772

  • SHA1

    910c910c09e8fd3ecca9c44b0652ba05a295def8

  • SHA256

    4819be19d03a245b83fd593209f3ab072ca7d5491d60fea2d50b848236833088

  • SHA512

    50bf99f6cc71b47e21ac1718712d7aec7de839444e7985584a0fc9556a2ea9ec69e7eefd8ab33a86743dd34167f3401469ac22d698d5db7e418a18bddbe2db78

  • SSDEEP

    6144:GEVDew2jZVWwSAEyS+zc0jnKh7La0FBivyLEgM:G7vkwST+IWCnLqvypM

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 9 IoCs
  • A310logger Executable 10 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 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 9 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 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 61 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NNHK09090.exe
    "C:\Users\Admin\AppData\Local\Temp\NNHK09090.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2936
    • C:\Users\Admin\AppData\Local\Temp\NNHK09090.exe
      "C:\Users\Admin\AppData\Local\Temp\NNHK09090.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3000
      • 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
        PID:3056
        • 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:2812
      • 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
        PID:240
        • 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:308
      • 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:1864
        • 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:2488
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
        3⤵
          PID:860

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      65KB

      MD5

      ac05d27423a85adc1622c714f2cb6184

      SHA1

      b0fe2b1abddb97837ea0195be70ab2ff14d43198

      SHA256

      c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

      SHA512

      6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357

      Filesize

      1KB

      MD5

      a266bb7dcc38a562631361bbf61dd11b

      SHA1

      3b1efd3a66ea28b16697394703a72ca340a05bd5

      SHA256

      df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

      SHA512

      0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

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

      Filesize

      344B

      MD5

      02ca95e94bb72153ae17a126c6ea9d6f

      SHA1

      54ec0056ba47e055d02ec8a30492d9ad7a1184b8

      SHA256

      c351a354f0e806e9e205e6c43c666f775c76d6080a9482969b595bedf1b80f09

      SHA512

      fcf55500f7ce86434c78326f790b776dc216508041ded5aba1eb03e7f5739a4b9f472223dd8c28c100ea17860f9b38c1c0053632458bbc07eb379f2a40d14761

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

      Filesize

      344B

      MD5

      5071e0affe61297026954c13cc55f4eb

      SHA1

      1c18e01f6a62d14863f39642a6cdc781587556e9

      SHA256

      2ba695518c4393badd4a9da48969a725defd4238ec53310ecfc6b5f1cb756076

      SHA512

      36bcbcf944b2d4dd1846dd12302df99dfbb068c290692aa70f1af7a05c1a97b05b7f4be03f254ab4156a239873d5f2b51953131275933a40b5b43b11aa090ae1

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

      Filesize

      344B

      MD5

      79c9155b76c3ba0a7a95a5f3bc2765e6

      SHA1

      112010d1dc2c2e7554a18772e493a3e75d026413

      SHA256

      94f730332cdef25b58317fed6b16b2f1edb3916ae7a0bddb62065713e360cd0e

      SHA512

      6145e2bb5610fa82d4140764015fae5fd7246665c170464711730f5f147e0af937ab2ca81b0898600e607174c48c45fa42520b3af091b8e7f9dcd0bf7d094616

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

      Filesize

      242B

      MD5

      037cd4786576f811335a552adbd26b09

      SHA1

      c8e1e08031bc68abcb266838b7409988c7b64927

      SHA256

      bbc3faa3407a546d35292e0e94968052b24bcda7c893e9a80e1a88c72167c85f

      SHA512

      9f43b430fa196de5e40fe80b635029e7b9a799b0cdfc5e9d128e87070c2bd0f5e42c7708338de6b9dcc6414f47b42778d498de5991cda5931f7e1c916696dcdb

    • C:\Users\Admin\AppData\Local\Temp\Tar2255.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/240-138-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/240-134-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/240-174-0x00000000743D0000-0x000000007497B000-memory.dmp

      Filesize

      5.7MB

    • memory/240-140-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/240-141-0x00000000743D0000-0x000000007497B000-memory.dmp

      Filesize

      5.7MB

    • memory/240-142-0x0000000000CE0000-0x0000000000D20000-memory.dmp

      Filesize

      256KB

    • memory/240-143-0x00000000743D0000-0x000000007497B000-memory.dmp

      Filesize

      5.7MB

    • memory/308-170-0x000007FEF5050000-0x000007FEF59ED000-memory.dmp

      Filesize

      9.6MB

    • memory/308-171-0x00000000020B0000-0x0000000002130000-memory.dmp

      Filesize

      512KB

    • memory/308-172-0x000007FEF5050000-0x000007FEF59ED000-memory.dmp

      Filesize

      9.6MB

    • memory/308-173-0x000007FEF5050000-0x000007FEF59ED000-memory.dmp

      Filesize

      9.6MB

    • memory/1864-190-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/1864-221-0x0000000074380000-0x000000007492B000-memory.dmp

      Filesize

      5.7MB

    • memory/1864-191-0x0000000074380000-0x000000007492B000-memory.dmp

      Filesize

      5.7MB

    • memory/1864-192-0x00000000008A0000-0x00000000008E0000-memory.dmp

      Filesize

      256KB

    • memory/1864-193-0x0000000074380000-0x000000007492B000-memory.dmp

      Filesize

      5.7MB

    • memory/1864-188-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/2488-219-0x000007FEF59F0000-0x000007FEF638D000-memory.dmp

      Filesize

      9.6MB

    • memory/2488-220-0x000007FEF59F0000-0x000007FEF638D000-memory.dmp

      Filesize

      9.6MB

    • memory/2488-217-0x000007FEF59F0000-0x000007FEF638D000-memory.dmp

      Filesize

      9.6MB

    • memory/2488-218-0x00000000022B0000-0x0000000002330000-memory.dmp

      Filesize

      512KB

    • memory/2812-122-0x000007FEF59F0000-0x000007FEF638D000-memory.dmp

      Filesize

      9.6MB

    • memory/2812-121-0x000007FEF59F0000-0x000007FEF638D000-memory.dmp

      Filesize

      9.6MB

    • memory/2936-2-0x0000000000140000-0x0000000000142000-memory.dmp

      Filesize

      8KB

    • memory/2936-1-0x0000000000360000-0x0000000000460000-memory.dmp

      Filesize

      1024KB

    • memory/3000-124-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/3000-3-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/3000-5-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/3000-8-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/3056-21-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/3056-123-0x00000000744B0000-0x0000000074A5B000-memory.dmp

      Filesize

      5.7MB

    • memory/3056-24-0x00000000744B0000-0x0000000074A5B000-memory.dmp

      Filesize

      5.7MB

    • memory/3056-26-0x00000000744B0000-0x0000000074A5B000-memory.dmp

      Filesize

      5.7MB

    • memory/3056-25-0x0000000002130000-0x0000000002170000-memory.dmp

      Filesize

      256KB

    • memory/3056-23-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/3056-19-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/3056-9-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/3056-11-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/3056-13-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/3056-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/3056-15-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB