Analysis

  • max time kernel
    110s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    01-12-2024 18:59

General

  • Target

    8d366c89609ca05337827e7c1800f1c45383e3674be6c1740822f0b2d6c93181N.exe

  • Size

    854KB

  • MD5

    92f8c876530ddb8a21a4bd1f655fc0f0

  • SHA1

    d8740211d01836f76aad705102a99d80dffdcb09

  • SHA256

    8d366c89609ca05337827e7c1800f1c45383e3674be6c1740822f0b2d6c93181

  • SHA512

    6464f41e51bcdbed4e1cc7565a326cf318ab675405f83a2dd4800cbb0a711b9bf0933c95d43ed38d71d2599b914c74e19245264c87034f63c40f8dd3500b7682

  • SSDEEP

    12288:JMZ7nce3PUtUsF+pmMbWyYG464IN34DNRvjsnvjoC++DGN0kgm5+Rz6F:2RXcfF+pSeNeLvjsvjY+DGN0kgm5lF

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 3 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\8d366c89609ca05337827e7c1800f1c45383e3674be6c1740822f0b2d6c93181N.exe
    "C:\Users\Admin\AppData\Local\Temp\8d366c89609ca05337827e7c1800f1c45383e3674be6c1740822f0b2d6c93181N.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:2944
    • C:\Users\Admin\AppData\Local\Temp\3582-490\8d366c89609ca05337827e7c1800f1c45383e3674be6c1740822f0b2d6c93181N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\8d366c89609ca05337827e7c1800f1c45383e3674be6c1740822f0b2d6c93181N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2700

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\8d366c89609ca05337827e7c1800f1c45383e3674be6c1740822f0b2d6c93181N.exe

    Filesize

    813KB

    MD5

    f30e2d8dd558c99dea8d0c505d2d7508

    SHA1

    40ab9bc05a8bff8b7178373af67438771b5e8bd3

    SHA256

    192bfbe4ddf26f0556c033c20eba46323fccc2566d6ec19d93f8f69df67a7c76

    SHA512

    19d17f4b019b76a1c5051a1acb213113fa7353c194f3fd656cffd47ed62f685aed4a2b44e4d01838b0d1b9334e9d1bbe87a2ad5fc6f7e94cc8da229deed03a6c

  • memory/2700-11-0x00000000001B0000-0x00000000001B1000-memory.dmp

    Filesize

    4KB

  • memory/2700-89-0x00000000001B0000-0x00000000001B1000-memory.dmp

    Filesize

    4KB

  • memory/2700-88-0x0000000000400000-0x00000000004D2000-memory.dmp

    Filesize

    840KB

  • memory/2700-92-0x0000000000400000-0x00000000004D2000-memory.dmp

    Filesize

    840KB

  • memory/2944-87-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2944-91-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB