Analysis

  • max time kernel
    28s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19-12-2024 07:44

General

  • Target

    4cad11dc18686af00fa50de99de8c047e4ea63f7fdba5e7391301d16eaabcdd7N.exe

  • Size

    1.1MB

  • MD5

    a3ab9d86610fa8851c37967f74b0d2f0

  • SHA1

    f3108d272de498276a5a676b3bc20cd073f47702

  • SHA256

    4cad11dc18686af00fa50de99de8c047e4ea63f7fdba5e7391301d16eaabcdd7

  • SHA512

    7a8f9360ce0c4d65f66d8e75326947ea55bef1c37f46c04715b57f1941b41b3f51ddf7da16f32710c3b98760d7be7a0e4f6b6cc4ba25233312498f0d0fcd88d4

  • SSDEEP

    24576:FG6dT7RvSHXWKCdLlwAN9QYhXCMJgN1S91sfNIyXHRXeu7RX40RXCp1Gut2WP1iB:Y6dT7RvSHXWKCdLlwAN9QYhXCMJgN1So

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 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\4cad11dc18686af00fa50de99de8c047e4ea63f7fdba5e7391301d16eaabcdd7N.exe
    "C:\Users\Admin\AppData\Local\Temp\4cad11dc18686af00fa50de99de8c047e4ea63f7fdba5e7391301d16eaabcdd7N.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:2692
    • C:\Users\Admin\AppData\Local\Temp\3582-490\4cad11dc18686af00fa50de99de8c047e4ea63f7fdba5e7391301d16eaabcdd7N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\4cad11dc18686af00fa50de99de8c047e4ea63f7fdba5e7391301d16eaabcdd7N.exe"
      2⤵
      • Executes dropped EXE
      PID:1272

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\4cad11dc18686af00fa50de99de8c047e4ea63f7fdba5e7391301d16eaabcdd7N.exe

    Filesize

    1.1MB

    MD5

    033a728b092cd4c67a63a65f58a2206b

    SHA1

    ae922c425b5f9868020945142894557fa6d98b2e

    SHA256

    ef7facc03e283bb8bb573f59a339601044326e20a9e1e2dadc676105d7a096a0

    SHA512

    74562d4102d9fd506a1d514c79ddc6e8e25a6bf964ec75f5e1ef219f26d4ad7c89f969763754e9b57a5ed6340d909cf3eceb7d9b473d409a243aa2ae598196d7

  • memory/2692-85-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2692-87-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB