Analysis

  • max time kernel
    166s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    29-12-2023 19:53

General

  • Target

    0257ddd147e983c710726ab6fa0f8e32.exe

  • Size

    239KB

  • MD5

    0257ddd147e983c710726ab6fa0f8e32

  • SHA1

    85fdda8fe46fb37b098953fda8b4ed22337954c4

  • SHA256

    9d5b467c6b68ab75c8153df07b72abd63fda9bd3dfcc045cb6fb65c17b1db482

  • SHA512

    d11646f9c95327dd5ab498339097bd67681e4ad0ae97639190b95b29ab07f188c9f9adda0a8bedccef87d0bbd9c86b45b1ffe76a4210714df072d1802c59bb6d

  • SSDEEP

    6144:60+pf8o5HaqCTPL5oT5jzOZiDmUZE5jZR5s:63pldatOn9mUZ2vu

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 12 IoCs
  • A310logger Executable 15 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 4 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 53 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0257ddd147e983c710726ab6fa0f8e32.exe
    "C:\Users\Admin\AppData\Local\Temp\0257ddd147e983c710726ab6fa0f8e32.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2904
    • C:\Users\Admin\AppData\Local\Temp\0257ddd147e983c710726ab6fa0f8e32.exe
      "C:\Users\Admin\AppData\Local\Temp\0257ddd147e983c710726ab6fa0f8e32.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2268
      • 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:2728
        • 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:268
      • 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:2308
        • 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:820
      • 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:2124
        • 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:2784

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    344B

    MD5

    a58a1539496acdb1d3745bdcbaddb0b6

    SHA1

    e2e5d9cee6242cc8115d410ad145c11179f223d8

    SHA256

    e4bebd9b8fd0f0804bca383897fd6a6b466dd92a5befdd80ee5cbb04d5678cba

    SHA512

    45a2da8192fe4c5d9049f96ee72347b8e95212a0920c5c55bc6d98c5325153b7ddcb8f7a3f438013cd26d3a11cb8a20829af64dc5a7afc00e036b1b4608ff336

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

    Filesize

    344B

    MD5

    ef6df9c5294251d659a547e68694972e

    SHA1

    095a9a3ab37455d18765eb1ddafe7bd3a9d7b6d9

    SHA256

    fe8edc1f54dee92df2ee2727acba577cbbb0d7bbdba399539ee89b4d54ee171b

    SHA512

    4373dbf67e7243c07e821c99cdca44695b4cfc9428562ad6dc0ef871f15809183742377b2737815a60603e5d58bbcf77656053469869b06e7fcd83360aa67885

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

    Filesize

    344B

    MD5

    343341241e30a1b70bfff96f05126807

    SHA1

    7d843706d5fa4869dc5b85f3c37ca92038a69118

    SHA256

    7a8eb20759d6e4ab18c18be47c6f291fda83ba052525ffe29c0697d0fb8c5a0e

    SHA512

    bf0b68431418c00afe598be83f311de7bcfda49120e4e36a87e9bb8769cbb0cad3019faf47170e156c62b357570ea0297f5acbe9a0665c75296c4ce00a7776b6

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

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\TarFC7D.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

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

    Filesize

    20KB

    MD5

    1bad0cbd09b05a21157d8255dc801778

    SHA1

    ff284bba12f011b72e20d4c9537d6c455cdbf228

    SHA256

    218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9

    SHA512

    4fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533

  • memory/268-95-0x000007FEF5110000-0x000007FEF5AAD000-memory.dmp

    Filesize

    9.6MB

  • memory/268-96-0x000007FEF5110000-0x000007FEF5AAD000-memory.dmp

    Filesize

    9.6MB

  • memory/268-100-0x000007FEF5110000-0x000007FEF5AAD000-memory.dmp

    Filesize

    9.6MB

  • memory/820-144-0x000007FEF4770000-0x000007FEF510D000-memory.dmp

    Filesize

    9.6MB

  • memory/820-145-0x000007FEF4770000-0x000007FEF510D000-memory.dmp

    Filesize

    9.6MB

  • memory/820-143-0x0000000000C30000-0x0000000000CB0000-memory.dmp

    Filesize

    512KB

  • memory/820-142-0x000007FEF4770000-0x000007FEF510D000-memory.dmp

    Filesize

    9.6MB

  • memory/2124-156-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2124-160-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2124-162-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2124-163-0x0000000073CF0000-0x000000007429B000-memory.dmp

    Filesize

    5.7MB

  • memory/2124-164-0x0000000000370000-0x00000000003B0000-memory.dmp

    Filesize

    256KB

  • memory/2124-165-0x0000000073CF0000-0x000000007429B000-memory.dmp

    Filesize

    5.7MB

  • memory/2124-192-0x0000000073CF0000-0x000000007429B000-memory.dmp

    Filesize

    5.7MB

  • memory/2268-98-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2268-3-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2268-5-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2308-146-0x0000000073D40000-0x00000000742EB000-memory.dmp

    Filesize

    5.7MB

  • memory/2308-109-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2308-113-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2308-115-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2308-116-0x0000000073D40000-0x00000000742EB000-memory.dmp

    Filesize

    5.7MB

  • memory/2308-117-0x0000000002310000-0x0000000002350000-memory.dmp

    Filesize

    256KB

  • memory/2308-118-0x0000000073D40000-0x00000000742EB000-memory.dmp

    Filesize

    5.7MB

  • memory/2728-20-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2728-12-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2728-22-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2728-97-0x0000000073E20000-0x00000000743CB000-memory.dmp

    Filesize

    5.7MB

  • memory/2728-8-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2728-24-0x0000000073E20000-0x00000000743CB000-memory.dmp

    Filesize

    5.7MB

  • memory/2728-18-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2728-10-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2728-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2728-23-0x0000000073E20000-0x00000000743CB000-memory.dmp

    Filesize

    5.7MB

  • memory/2728-14-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2728-25-0x0000000000300000-0x0000000000340000-memory.dmp

    Filesize

    256KB

  • memory/2784-189-0x000007FEF5110000-0x000007FEF5AAD000-memory.dmp

    Filesize

    9.6MB

  • memory/2784-191-0x000007FEF5110000-0x000007FEF5AAD000-memory.dmp

    Filesize

    9.6MB

  • memory/2784-190-0x0000000000950000-0x00000000009D0000-memory.dmp

    Filesize

    512KB

  • memory/2904-1-0x0000000000320000-0x0000000000420000-memory.dmp

    Filesize

    1024KB

  • memory/2904-2-0x0000000000130000-0x0000000000132000-memory.dmp

    Filesize

    8KB