Resubmissions

30/03/2025, 00:33

250330-awg71swvcx 10

04/03/2025, 10:00

250304-l1rsssykv7 10

Analysis

  • max time kernel
    42s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    04/03/2025, 10:00

General

  • Target

    43a4ccbc49a375bf9ee5bd085412f9e81bd4e9aba05db7e357dd95e04613a70b.exe

  • Size

    973KB

  • MD5

    5e6fd71b7a515479b2e5e77bc7ea22f8

  • SHA1

    394c41cee4b594ea8ba8d0fd6b686721a52e61ad

  • SHA256

    43a4ccbc49a375bf9ee5bd085412f9e81bd4e9aba05db7e357dd95e04613a70b

  • SHA512

    ba6d95ce84501b252b517f363be0d13f2d09e6816bb54160786c281a980bad69cb31d5e1da35d270e970121ca32dc11bcf69c310e222ac95f46ff85926025be2

  • SSDEEP

    24576:Aukx3gKIoADALW7SyoyfWeU/OPFVNm1bOnVVnrQSBjfEpb4vkU:agKBAcmoyeUdkOnVFNERj

Malware Config

Signatures

  • Detect Neshta payload 6 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Neshta family
  • CoreCCC Packer 4 IoCs

    Detects CoreCCC packer used to load .NET malware.

  • Loads dropped DLL 1 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\43a4ccbc49a375bf9ee5bd085412f9e81bd4e9aba05db7e357dd95e04613a70b.exe
    "C:\Users\Admin\AppData\Local\Temp\43a4ccbc49a375bf9ee5bd085412f9e81bd4e9aba05db7e357dd95e04613a70b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1956
    • C:\Users\Admin\AppData\Local\Temp\43a4ccbc49a375bf9ee5bd085412f9e81bd4e9aba05db7e357dd95e04613a70b.exe
      "{path}"
      2⤵
        PID:2532
      • C:\Users\Admin\AppData\Local\Temp\43a4ccbc49a375bf9ee5bd085412f9e81bd4e9aba05db7e357dd95e04613a70b.exe
        "{path}"
        2⤵
        • Loads dropped DLL
        • Modifies system executable filetype association
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:2536

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

      Filesize

      547KB

      MD5

      e8640ff399876e00c6b21ced3e24ba43

      SHA1

      ae9e6df4c2488078a6f92d86d3f42ffdfc8a9dd7

      SHA256

      2cfadccdd1f4a2ea7a659b6e85a505bb19cb38b610c26c5a8b11681078f40e28

      SHA512

      7d94e2c05312f6ea4987de20f3c2b26c9a76a5926120b0155e58ee623629b73db713a6861cb47bfcd1a1c040e6f3c8c45698a8ee537ae5852f736fe1d1d6496c

    • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

      Filesize

      252KB

      MD5

      9e2b9928c89a9d0da1d3e8f4bd96afa7

      SHA1

      ec66cda99f44b62470c6930e5afda061579cde35

      SHA256

      8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

      SHA512

      2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

    • memory/1956-20-0x0000000000A60000-0x0000000000AA0000-memory.dmp

      Filesize

      256KB

    • memory/1956-1-0x00000000741C0000-0x000000007476B000-memory.dmp

      Filesize

      5.7MB

    • memory/1956-2-0x00000000741C0000-0x000000007476B000-memory.dmp

      Filesize

      5.7MB

    • memory/1956-0-0x00000000741C1000-0x00000000741C2000-memory.dmp

      Filesize

      4KB

    • memory/1956-27-0x00000000741C0000-0x000000007476B000-memory.dmp

      Filesize

      5.7MB

    • memory/2536-14-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2536-5-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2536-19-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2536-11-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2536-9-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2536-8-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2536-7-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2536-10-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2536-4-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2536-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2536-16-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2536-15-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2536-100-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2536-102-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB