Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    11-01-2025 19:50

General

  • Target

    87343b8d6563b76e668d6c4818e10f862bc59694530e1f64dc30484304a46101N.exe

  • Size

    257KB

  • MD5

    be131dd17a9e42856acde25471794af0

  • SHA1

    495fc28656f0bbf383c143846ace8077e7486ce0

  • SHA256

    87343b8d6563b76e668d6c4818e10f862bc59694530e1f64dc30484304a46101

  • SHA512

    88d0d4389e70cce76410b76206f6db096f5b6b71bc981d114da4f56406015ae0aa45a107d6b5fd235c4cb0e966a5bc6ca4c64023065ce148057610217f5462a1

  • SSDEEP

    3072:sr85ClZqd4xQZHWZfXPYz0rjypE5q7NnVRnaNx2qOoB3O4Xq2PkbafAwetSnWEes:k99i2hgOjyvNHlqbB3W7bu6ns

Malware Config

Signatures

  • Detect Neshta payload 3 IoCs
  • Neshta

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

  • Neshta family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 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 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\87343b8d6563b76e668d6c4818e10f862bc59694530e1f64dc30484304a46101N.exe
    "C:\Users\Admin\AppData\Local\Temp\87343b8d6563b76e668d6c4818e10f862bc59694530e1f64dc30484304a46101N.exe"
    1⤵
    • 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
    • Suspicious use of WriteProcessMemory
    PID:2180
    • C:\Users\Admin\AppData\Local\Temp\3582-490\87343b8d6563b76e668d6c4818e10f862bc59694530e1f64dc30484304a46101N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\87343b8d6563b76e668d6c4818e10f862bc59694530e1f64dc30484304a46101N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2748

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    547KB

    MD5

    cf6c595d3e5e9667667af096762fd9c4

    SHA1

    9bb44da8d7f6457099cb56e4f7d1026963dce7ce

    SHA256

    593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

    SHA512

    ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

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

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\3582-490\87343b8d6563b76e668d6c4818e10f862bc59694530e1f64dc30484304a46101N.exe

    Filesize

    216KB

    MD5

    c0bc32a6e99d3c6c4557887979e9bbae

    SHA1

    067b44b1136a2abd1f54a1f28371e55b4037534d

    SHA256

    e975d5e570b68ff0bec4692718835c0f1d0aced93990a332b914c70ac62f10f4

    SHA512

    a231bc5dd2ec7868753c904656055eb40316891cff2392b92becb9c15a52d82d592af38bd87069060e1b29c881d596d529b3295007c812e66697a754f6fb7292

  • memory/2180-91-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2180-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2748-12-0x000000007408E000-0x000000007408F000-memory.dmp

    Filesize

    4KB

  • memory/2748-13-0x0000000000D20000-0x0000000000D5C000-memory.dmp

    Filesize

    240KB

  • memory/2748-15-0x0000000000530000-0x0000000000552000-memory.dmp

    Filesize

    136KB

  • memory/2748-14-0x0000000074080000-0x000000007476E000-memory.dmp

    Filesize

    6.9MB

  • memory/2748-18-0x0000000074080000-0x000000007476E000-memory.dmp

    Filesize

    6.9MB