Analysis

  • max time kernel
    119s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    08-02-2025 02:55

General

  • Target

    8e7aa085da4df3bf4db4a55941419014ddd4bc1b00db407fc87c0ad67021f3fc.exe

  • Size

    412KB

  • MD5

    829f5b22896ed524b9b3ec4cb002c529

  • SHA1

    02af85910666a332f78b2501d3fab385fe29ecba

  • SHA256

    8e7aa085da4df3bf4db4a55941419014ddd4bc1b00db407fc87c0ad67021f3fc

  • SHA512

    c4a92bdd28b65935b8b7bfee2216f53e8d75a43d92e89d1a4249fc2ba07204f70f73461225861c2b8f61f2326ded5e95a0311ec1ae89444d6a4d821d86067ff4

  • SSDEEP

    6144:k9U/jux+wla33MnY/Aub5BHF33qx1cFvJSPZx8ub5BHF335R2mYCm7i:Br6+wQ3cZM33qx1Fx8M33DeX7i

Malware Config

Signatures

  • Detect Neshta payload 6 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 7 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 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8e7aa085da4df3bf4db4a55941419014ddd4bc1b00db407fc87c0ad67021f3fc.exe
    "C:\Users\Admin\AppData\Local\Temp\8e7aa085da4df3bf4db4a55941419014ddd4bc1b00db407fc87c0ad67021f3fc.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:2548
    • C:\Users\Admin\AppData\Local\Temp\3582-490\8e7aa085da4df3bf4db4a55941419014ddd4bc1b00db407fc87c0ad67021f3fc.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\8e7aa085da4df3bf4db4a55941419014ddd4bc1b00db407fc87c0ad67021f3fc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1976
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 1976 -s 504
        3⤵
        • Loads dropped DLL
        PID:2772

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

  • C:\Users\Admin\AppData\Local\Temp\3582-490\8e7aa085da4df3bf4db4a55941419014ddd4bc1b00db407fc87c0ad67021f3fc.exe

    Filesize

    372KB

    MD5

    0d8ac7d96eb84ef8de7dec1044b893b3

    SHA1

    c705e7183d06c73f0758e3fd7a21dcf52407f279

    SHA256

    f3e5f4eb0ddf11fc3035f9d2fe2ecda7303e7bec0ebc196cb6ca7440580e2c38

    SHA512

    a8d77765bcbc0e53682632b55c924d2caf353e8338c80da77e2d12ec4b9c636cc1d886f404b9e312de984dbd1dbcac9b98950bf52d5e81953aa431ff6f3f818b

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

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • memory/1976-11-0x000007FEF60D3000-0x000007FEF60D4000-memory.dmp

    Filesize

    4KB

  • memory/1976-12-0x000000013FA00000-0x000000013FA5E000-memory.dmp

    Filesize

    376KB

  • memory/2548-90-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2548-91-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2548-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2548-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2548-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB