Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    26-12-2023 23:33

General

  • Target

    96739a4d394217c2cbd895cf16acc0c8.exe

  • Size

    455KB

  • MD5

    96739a4d394217c2cbd895cf16acc0c8

  • SHA1

    90af83fed1eb2652e133aad4f47f9354287f75a8

  • SHA256

    28fe91c48fa8583da9692cbdee3c2c32038d5dc3f8ca7dcd195f74511c1d6a78

  • SHA512

    846383b8cd6ff5208c96bf2063faff5c2fa1c1d5d714c11cb30d9aa84ad56f2435f70b2446cfc7006920a4b71dfc568bb36e03d5e8d077db757e673307729955

  • SSDEEP

    6144:FpJ+LBFdhgY3AgXUU6EEsgg/nzzYjzZnMUzpVltygvxTUpVP/KW+q9UT95GX:vArdGPqSENgg/KRpT/vxUpMLR5k

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 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\96739a4d394217c2cbd895cf16acc0c8.exe
    "C:\Users\Admin\AppData\Local\Temp\96739a4d394217c2cbd895cf16acc0c8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1728
    • C:\Users\Admin\AppData\Local\Temp\96739a4d394217c2cbd895cf16acc0c8.exe
      "C:\Users\Admin\AppData\Local\Temp\96739a4d394217c2cbd895cf16acc0c8.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2992
      • 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:2668
        • 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:2284
      • 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:548
        • 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: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
        • outlook_office_path
        • outlook_win_path
        PID:3024
        • 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:2780

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    344B

    MD5

    6741115a553327b8aa6757ebbd10ad47

    SHA1

    dc60ef4c5e439deb3c385ebf64535b2a3da3122d

    SHA256

    d82a74c8637f7ef88e1d21cd6c7084a3458eeeeae6f2579944c0b4b74696f929

    SHA512

    ad42dde7898f9e25dd1d97ce53017b37dc462c0b954b9d77376d91df47f55c86d32a7e5e2304b24e42060ac02d6b9776f8078a18cdb3e69e97f6f126e800e6b8

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

    Filesize

    344B

    MD5

    95f482dd865cd3226bbd736f84f630ef

    SHA1

    7aa4c728a9b0cac5ba9e61712bbaa4ac02845c6e

    SHA256

    11375dcd0a97de715cdcdd5dbad8d7ba89a10b3ac4800e0292152e7218a63ade

    SHA512

    a56c6cabe5d5b75fda12b4d6eecb21b8c64a337d98b3ed51b81747b151193e64813b231b5e7973b63308548850638f3108c7a8e03476bf794ee92db175fcbc9d

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

    Filesize

    344B

    MD5

    f520172ad4d3346605f8781d6638d881

    SHA1

    f70be3a1775273845c9fada37b07b4876891fbdd

    SHA256

    a448d898c6c00808d74e1cb63412738f160f08fa1163cc353c5ff160830f9dd1

    SHA512

    dbcf1b0f8bebc80214f21c11ad215ad31a5eb36f6a401bf3810c1141a0ca81e3fa3a54540cec27f3273c5b7f87a60d65ab98f5a9cd14d64a4f1eb5629bc402b9

  • C:\Users\Admin\AppData\Local\Temp\Cab9974.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar9BC8.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/548-112-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/548-115-0x0000000074530000-0x0000000074ADB000-memory.dmp

    Filesize

    5.7MB

  • memory/548-145-0x0000000074530000-0x0000000074ADB000-memory.dmp

    Filesize

    5.7MB

  • memory/548-118-0x0000000074530000-0x0000000074ADB000-memory.dmp

    Filesize

    5.7MB

  • memory/548-117-0x0000000074530000-0x0000000074ADB000-memory.dmp

    Filesize

    5.7MB

  • memory/548-114-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/548-116-0x0000000000450000-0x0000000000490000-memory.dmp

    Filesize

    256KB

  • memory/1728-1-0x0000000000130000-0x0000000000132000-memory.dmp

    Filesize

    8KB

  • memory/1728-4-0x0000000000EB0000-0x0000000000EF0000-memory.dmp

    Filesize

    256KB

  • memory/1728-0-0x0000000000EB0000-0x0000000000EF0000-memory.dmp

    Filesize

    256KB

  • memory/2268-142-0x000007FEF4BF0000-0x000007FEF558D000-memory.dmp

    Filesize

    9.6MB

  • memory/2268-143-0x0000000000B90000-0x0000000000C10000-memory.dmp

    Filesize

    512KB

  • memory/2268-144-0x000007FEF4BF0000-0x000007FEF558D000-memory.dmp

    Filesize

    9.6MB

  • memory/2284-96-0x000007FEF5590000-0x000007FEF5F2D000-memory.dmp

    Filesize

    9.6MB

  • memory/2284-95-0x000007FEF5590000-0x000007FEF5F2D000-memory.dmp

    Filesize

    9.6MB

  • memory/2668-20-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2668-12-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2668-14-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2668-25-0x0000000000720000-0x0000000000760000-memory.dmp

    Filesize

    256KB

  • memory/2668-24-0x0000000074610000-0x0000000074BBB000-memory.dmp

    Filesize

    5.7MB

  • memory/2668-23-0x0000000074610000-0x0000000074BBB000-memory.dmp

    Filesize

    5.7MB

  • memory/2668-22-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2668-8-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2668-18-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2668-10-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/2668-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2668-97-0x0000000074610000-0x0000000074BBB000-memory.dmp

    Filesize

    5.7MB

  • memory/2780-188-0x000007FEF5590000-0x000007FEF5F2D000-memory.dmp

    Filesize

    9.6MB

  • memory/2780-189-0x000007FEF5590000-0x000007FEF5F2D000-memory.dmp

    Filesize

    9.6MB

  • memory/2992-98-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2992-5-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2992-2-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/3024-159-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/3024-161-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/3024-162-0x00000000744E0000-0x0000000074A8B000-memory.dmp

    Filesize

    5.7MB

  • memory/3024-163-0x00000000744E0000-0x0000000074A8B000-memory.dmp

    Filesize

    5.7MB

  • memory/3024-164-0x0000000000DF0000-0x0000000000E30000-memory.dmp

    Filesize

    256KB

  • memory/3024-190-0x00000000744E0000-0x0000000074A8B000-memory.dmp

    Filesize

    5.7MB