Analysis

  • max time kernel
    19s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    02-01-2025 07:10

General

  • Target

    13c74c2bc7f2e760250e34d7551a855f08d9382f5591cfda73c36a7045b009c8N.exe

  • Size

    227KB

  • MD5

    b8bb7885553b459baad43e5350e34c80

  • SHA1

    e863c7f20e7264fb076f3995c25a9bb9a6e46ae6

  • SHA256

    13c74c2bc7f2e760250e34d7551a855f08d9382f5591cfda73c36a7045b009c8

  • SHA512

    228f6ed63c02408b7447332354c4c26931b4f39bef5c5a4746360eb1a0889b0b6a9bb63c66655f7a94bb3b30a31ecd398850d343cf2be2d64d4b26cb7768fbcb

  • SSDEEP

    3072:sr85CD7Xk4tSvpPWa6DqhRhfPq6r7RjpZPbo0OigGuTGRyEEOb9:k9D7kKSvpphfV3RjpZa8vZ

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 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\13c74c2bc7f2e760250e34d7551a855f08d9382f5591cfda73c36a7045b009c8N.exe
    "C:\Users\Admin\AppData\Local\Temp\13c74c2bc7f2e760250e34d7551a855f08d9382f5591cfda73c36a7045b009c8N.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:1820
    • C:\Users\Admin\AppData\Local\Temp\3582-490\13c74c2bc7f2e760250e34d7551a855f08d9382f5591cfda73c36a7045b009c8N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\13c74c2bc7f2e760250e34d7551a855f08d9382f5591cfda73c36a7045b009c8N.exe"
      2⤵
      • Executes dropped EXE
      PID:2028

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\13c74c2bc7f2e760250e34d7551a855f08d9382f5591cfda73c36a7045b009c8N.exe

    Filesize

    186KB

    MD5

    3cfafbf380fc2aa63b8b9e9d03618139

    SHA1

    240dd14bf198a41edb04b80f616e414408d49efa

    SHA256

    26cd571a4f088c9e3f68140a8c6b8d9cd04a3464419bbb1097afe1d0e490a0eb

    SHA512

    9e04e9ebddca95a2c0d027a6cbb393db423ffa13f4268b43a2619425e9b6e469dce9be378294ca97ebde3b8ef432409e2d610e262300090e908b35f2aa586037

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

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • memory/1820-82-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1820-84-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB