Analysis

  • max time kernel
    93s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/10/2024, 00:03

General

  • Target

    b96e0ca6b965840989b733b4f0b402e6eec82170fa91bee7b5b12dc069b9391eN.exe

  • Size

    82KB

  • MD5

    d192a7fbb9c1e4a0de647a10aad33d60

  • SHA1

    6b9adfd6146085f12483924a74e634aff26c97c0

  • SHA256

    b96e0ca6b965840989b733b4f0b402e6eec82170fa91bee7b5b12dc069b9391e

  • SHA512

    7706d31e9fc4d0a333e851b2a9279df665979eb14d69ee63d1bf3c54481207291be9b172ecbaf3b3aec38a83fa9bf707724d6e12544f45ebc4f44230dd8c526c

  • SSDEEP

    1536:JxqjQ+P04wsmJC1bovY2QGZmoTsH9etywymCS:sr85CSkufTswtywymF

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.

  • 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 3 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b96e0ca6b965840989b733b4f0b402e6eec82170fa91bee7b5b12dc069b9391eN.exe
    "C:\Users\Admin\AppData\Local\Temp\b96e0ca6b965840989b733b4f0b402e6eec82170fa91bee7b5b12dc069b9391eN.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:2156
    • C:\Users\Admin\AppData\Local\Temp\3582-490\b96e0ca6b965840989b733b4f0b402e6eec82170fa91bee7b5b12dc069b9391eN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\b96e0ca6b965840989b733b4f0b402e6eec82170fa91bee7b5b12dc069b9391eN.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:2484
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 1752
        3⤵
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:2340

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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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\b96e0ca6b965840989b733b4f0b402e6eec82170fa91bee7b5b12dc069b9391eN.exe

    Filesize

    42KB

    MD5

    937bd92ce2115eb5e97e8da742639f19

    SHA1

    96af8b43c17684b0e99ec3ecd330ca3175992042

    SHA256

    84534b393d15a4971104bef84746be3288847a5932d8e6db26f5cefc522d632e

    SHA512

    d5f5cd34b4a4bc0398ed36a5a790608ec441aefb3b947abda11b24a9d45d19650c37f77e7145058375a14474a61265e30ad8f326aad50e421b3efc939fe5b769

  • memory/2156-123-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2156-124-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2156-126-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2484-12-0x0000000073AC2000-0x0000000073AC3000-memory.dmp

    Filesize

    4KB

  • memory/2484-13-0x0000000073AC0000-0x0000000074071000-memory.dmp

    Filesize

    5.7MB

  • memory/2484-14-0x0000000073AC0000-0x0000000074071000-memory.dmp

    Filesize

    5.7MB

  • memory/2484-53-0x0000000073AC0000-0x0000000074071000-memory.dmp

    Filesize

    5.7MB