Analysis

  • max time kernel
    95s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-11-2024 03:18

General

  • Target

    c9337c8f48fc7af88debacd0e9ec24bb2c018f073d4d8f70214667ec66184cb1N.exe

  • Size

    125KB

  • MD5

    c62efb3a6a6f420fba02c4c68102ec20

  • SHA1

    b0ced797fe884f230d0694b1525022c8bd6adf5c

  • SHA256

    c9337c8f48fc7af88debacd0e9ec24bb2c018f073d4d8f70214667ec66184cb1

  • SHA512

    b82ad6ea8a0d33c418d8a778689b8dadcb69756f2261aed4b5da840343a534b01905df1d47a7c248b0cc508b72a0da7c68f050fe8e48ea11905c39d5d32dcb77

  • SSDEEP

    1536:JxqjQ+P04wsmJCTWfcsiorZD0IqOU8rqvdHnw8RSijDtSA5xeZ0DbBCc0+:sr85CykxoVRrU8rUHwDijpS4DbYc0+

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 2 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.

  • NSIS installer 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c9337c8f48fc7af88debacd0e9ec24bb2c018f073d4d8f70214667ec66184cb1N.exe
    "C:\Users\Admin\AppData\Local\Temp\c9337c8f48fc7af88debacd0e9ec24bb2c018f073d4d8f70214667ec66184cb1N.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:3228
    • C:\Users\Admin\AppData\Local\Temp\3582-490\c9337c8f48fc7af88debacd0e9ec24bb2c018f073d4d8f70214667ec66184cb1N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\c9337c8f48fc7af88debacd0e9ec24bb2c018f073d4d8f70214667ec66184cb1N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1572
      • C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
        "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\3582-490\
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:532

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\c9337c8f48fc7af88debacd0e9ec24bb2c018f073d4d8f70214667ec66184cb1N.exe

    Filesize

    84KB

    MD5

    8b6b9a4c01de425638107acdb59daa01

    SHA1

    91b441eda1ebe8f2cd996f893a42fe480ba8af60

    SHA256

    9b10c07010d0c4e1ec53627d54b86f77bf87287e87f678cf3c1ffc28e125ba6c

    SHA512

    bca233321196c61c31ba4ab8dea02655f18b737b36adf79ab7b4cdb4668973101be5443b4e53cbafe808e2272de0f9fcef43f86cca7cb8e796098dbf53d9877b

  • memory/3228-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3228-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3228-102-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB