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Analysis

  • max time kernel
    93s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/11/2024, 12:30 UTC

General

  • Target

    b523d7fe08e059e1eb0c801b608eef842169d89d8a5372c3cfce37cbfb1bb6bbN.exe

  • Size

    175KB

  • MD5

    e0d5f51fbd8b18c73a0f3688f948a270

  • SHA1

    3bc683b1ee1b1368995c38f139236842756d4620

  • SHA256

    b523d7fe08e059e1eb0c801b608eef842169d89d8a5372c3cfce37cbfb1bb6bb

  • SHA512

    824f2b3576f1448d7284b2f5da1578a7d3c425eb39fb44ce2513ce3d0017ade639cebe2aa8b567311598cb245d5aa4a042278c69e90d2a116f3642633dbb4140

  • SSDEEP

    1536:JxqjQ+P04wsmJCnHD4c8U6Qa2sWjcdCMVrJCzK4VqOqK0UDFopKZ+otaOxH8ES:sr85CjeBQa5CMVrJCzK4VpFfZ+otdi

Malware Config

Signatures

  • Detect Neshta payload 4 IoCs
  • Neshta

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

  • Neshta family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 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.

  • 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 use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b523d7fe08e059e1eb0c801b608eef842169d89d8a5372c3cfce37cbfb1bb6bbN.exe
    "C:\Users\Admin\AppData\Local\Temp\b523d7fe08e059e1eb0c801b608eef842169d89d8a5372c3cfce37cbfb1bb6bbN.exe"
    1⤵
    • Checks computer location settings
    • 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
    • Suspicious use of WriteProcessMemory
    PID:5068
    • C:\Users\Admin\AppData\Local\Temp\3582-490\b523d7fe08e059e1eb0c801b608eef842169d89d8a5372c3cfce37cbfb1bb6bbN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\b523d7fe08e059e1eb0c801b608eef842169d89d8a5372c3cfce37cbfb1bb6bbN.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3448

Network

  • flag-us
    DNS
    154.239.44.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    154.239.44.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    71.159.190.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    71.159.190.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    95.221.229.192.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    95.221.229.192.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    212.20.149.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    212.20.149.52.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    15.164.165.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    15.164.165.52.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    92.12.20.2.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    92.12.20.2.in-addr.arpa
    IN PTR
    Response
    92.12.20.2.in-addr.arpa
    IN PTR
    a2-20-12-92deploystaticakamaitechnologiescom
  • flag-us
    DNS
    83.210.23.2.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    83.210.23.2.in-addr.arpa
    IN PTR
    Response
    83.210.23.2.in-addr.arpa
    IN PTR
    a2-23-210-83deploystaticakamaitechnologiescom
No results found
  • 8.8.8.8:53
    154.239.44.20.in-addr.arpa
    dns
    72 B
    158 B
    1
    1

    DNS Request

    154.239.44.20.in-addr.arpa

  • 8.8.8.8:53
    71.159.190.20.in-addr.arpa
    dns
    72 B
    158 B
    1
    1

    DNS Request

    71.159.190.20.in-addr.arpa

  • 8.8.8.8:53
    95.221.229.192.in-addr.arpa
    dns
    73 B
    144 B
    1
    1

    DNS Request

    95.221.229.192.in-addr.arpa

  • 8.8.8.8:53
    212.20.149.52.in-addr.arpa
    dns
    72 B
    146 B
    1
    1

    DNS Request

    212.20.149.52.in-addr.arpa

  • 8.8.8.8:53
    15.164.165.52.in-addr.arpa
    dns
    72 B
    146 B
    1
    1

    DNS Request

    15.164.165.52.in-addr.arpa

  • 8.8.8.8:53
    92.12.20.2.in-addr.arpa
    dns
    69 B
    131 B
    1
    1

    DNS Request

    92.12.20.2.in-addr.arpa

  • 8.8.8.8:53
    83.210.23.2.in-addr.arpa
    dns
    70 B
    133 B
    1
    1

    DNS Request

    83.210.23.2.in-addr.arpa

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

    Filesize

    86KB

    MD5

    3b73078a714bf61d1c19ebc3afc0e454

    SHA1

    9abeabd74613a2f533e2244c9ee6f967188e4e7e

    SHA256

    ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

    SHA512

    75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

  • C:\Users\Admin\AppData\Local\Temp\3582-490\b523d7fe08e059e1eb0c801b608eef842169d89d8a5372c3cfce37cbfb1bb6bbN.exe

    Filesize

    135KB

    MD5

    f9feb84c50872f1d17b07c0e1f0e8034

    SHA1

    42a6b8c5c735af6ff4de6e94d7864cb199c9c2ff

    SHA256

    438553166be235b40cb37d5a99aa89693b21ab4ba34cde51f05ea806dac29b99

    SHA512

    00d0de63eca55a50a7def99300648890dc6286c3dd1e517eb410c4c1e2f36d6bc57352ba6d3c3515742df99df89a0424a787fbd043f3c8880129480d2f8e438e

  • memory/5068-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5068-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5068-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

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