Analysis

  • max time kernel
    92s
  • 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
    02-01-2025 12:03

General

  • Target

    1d5d381af9eb15a1708bd79bfe22f1265f997a87a6668537e94f147ded2c604dN.exe

  • Size

    2.4MB

  • MD5

    a6e7dd0d0350bd2319ace1c8c10a3a30

  • SHA1

    c49db3fcfb1c9b2566039bf90b82d5782f35e160

  • SHA256

    1d5d381af9eb15a1708bd79bfe22f1265f997a87a6668537e94f147ded2c604d

  • SHA512

    85df72cc49013f34233d38eea98a89fa06257451ae1649c4a6716c3a6c06bac7d93d82d051cc0fd9142f2fcaa87b3a8c8db8e40ad191fd652f56f8ebc77062fe

  • SSDEEP

    49152:olgH6mwi1B8K50hGW9e0dC/VEBqH9nuzybDDz6O3o:Gmbdnun1

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 1 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 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1d5d381af9eb15a1708bd79bfe22f1265f997a87a6668537e94f147ded2c604dN.exe
    "C:\Users\Admin\AppData\Local\Temp\1d5d381af9eb15a1708bd79bfe22f1265f997a87a6668537e94f147ded2c604dN.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:5016
    • C:\Users\Admin\AppData\Local\Temp\3582-490\1d5d381af9eb15a1708bd79bfe22f1265f997a87a6668537e94f147ded2c604dN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\1d5d381af9eb15a1708bd79bfe22f1265f997a87a6668537e94f147ded2c604dN.exe"
      2⤵
      • Executes dropped EXE
      PID:2388

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\1d5d381af9eb15a1708bd79bfe22f1265f997a87a6668537e94f147ded2c604dN.exe

    Filesize

    2.3MB

    MD5

    eee195524f8ded8d740301ad63f9657e

    SHA1

    253b476e8467e0df370a600ef472bfbc74eb4b16

    SHA256

    7b829773c5dd4f9aa8e340c16c733cf443eb0567ee1655ba588ac6840ff2a84f

    SHA512

    d997d7017a20e6af1f99c4e3dfb15b7da0bc120792b7363f04c0bc8cf104c6df614a3955abce4a94e639bad08654474ac3046926fce9f9884b15a1a8cf9606b3

  • memory/5016-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5016-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5016-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB