Analysis

  • max time kernel
    16s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    01-12-2024 16:34

General

  • Target

    579e16815dc46e11ad7e85695a2056f387a82bcb575bd0185094c73ac07b7a19N.exe

  • Size

    5.3MB

  • MD5

    8e9cd3c642c5ddd98b767eb36098eac0

  • SHA1

    c1a5a8a5579ca5dd9fb39c498003c42743c3988a

  • SHA256

    579e16815dc46e11ad7e85695a2056f387a82bcb575bd0185094c73ac07b7a19

  • SHA512

    60feb800848d539311c7a9eec2cc629762e9db01c97c139f56349ef5db02905d75c768c4c5709c346776b131f48e2f58b05aae558136d503397c0ee63fbde837

  • SSDEEP

    49152:ElKjoqMGbkf8XfH2cvoJ7JdCrM5faRYZs9rri9/F0U2cRP8JF9zdP+T1E6gpPyDN:ElJqM48QunJ7JkA5faRO/06EnRyIxRc

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 use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\579e16815dc46e11ad7e85695a2056f387a82bcb575bd0185094c73ac07b7a19N.exe
    "C:\Users\Admin\AppData\Local\Temp\579e16815dc46e11ad7e85695a2056f387a82bcb575bd0185094c73ac07b7a19N.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:848
    • C:\Users\Admin\AppData\Local\Temp\3582-490\579e16815dc46e11ad7e85695a2056f387a82bcb575bd0185094c73ac07b7a19N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\579e16815dc46e11ad7e85695a2056f387a82bcb575bd0185094c73ac07b7a19N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2432

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\579e16815dc46e11ad7e85695a2056f387a82bcb575bd0185094c73ac07b7a19N.exe

    Filesize

    5.3MB

    MD5

    2150665ea2587d067e5b4f5628116c76

    SHA1

    b2876a99d20bf4539da0041f2c56c0af91ed1dfb

    SHA256

    d803599f9d89ab3299c44dea6ac77ef243db8d9cd48f499233873871586cffb5

    SHA512

    e86bf991c7955203a248ed1578f7a1e730f41e6318d8061f3c5a717a8737016e941fd6eaeb4002a74955069bd9ff7d7b739403ccd7a1d384c6fabb40dcfeae09

  • memory/848-89-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/848-91-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2432-16-0x0000000017400000-0x0000000017401000-memory.dmp

    Filesize

    4KB

  • memory/2432-15-0x0000000007E00000-0x0000000007E01000-memory.dmp

    Filesize

    4KB

  • memory/2432-14-0x000000000F100000-0x000000000F101000-memory.dmp

    Filesize

    4KB

  • memory/2432-13-0x0000000014300000-0x0000000014301000-memory.dmp

    Filesize

    4KB

  • memory/2432-12-0x0000000034600000-0x0000000034601000-memory.dmp

    Filesize

    4KB

  • memory/2432-11-0x0000000027D00000-0x0000000027D01000-memory.dmp

    Filesize

    4KB