Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    08-12-2024 02:12

General

  • Target

    af659a1a2a185c7f25a784c26fd06b66e796ab0f8687088c891b8a5361cf9c7c.exe

  • Size

    2.3MB

  • MD5

    39edc31ba17b62c290839409291acbca

  • SHA1

    3d5b7271c099ebf8df5d281dedaa1db22cc43673

  • SHA256

    af659a1a2a185c7f25a784c26fd06b66e796ab0f8687088c891b8a5361cf9c7c

  • SHA512

    e81c71932d45a51a774a3d82c85100b8389eaa8f50673785a31b27bc85dd9027e684b80645b46effea86a6641d7cab53df9b59be7a7b095e4a6d7918880802c1

  • SSDEEP

    24576:JSXWhM6NOdZjUYSeV5S1lU/Rl45x3+Pt/Rt+xbK+klQkR3ieRvfVWyWe4e5qm9Vo:1osL5J+Pt/YK5yeRvdWyWe4XXLoQ

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 2 IoCs
  • Loads dropped DLL 8 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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\af659a1a2a185c7f25a784c26fd06b66e796ab0f8687088c891b8a5361cf9c7c.exe
    "C:\Users\Admin\AppData\Local\Temp\af659a1a2a185c7f25a784c26fd06b66e796ab0f8687088c891b8a5361cf9c7c.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:2364
    • C:\Users\Admin\AppData\Local\Temp\3582-490\af659a1a2a185c7f25a784c26fd06b66e796ab0f8687088c891b8a5361cf9c7c.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\af659a1a2a185c7f25a784c26fd06b66e796ab0f8687088c891b8a5361cf9c7c.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2560
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 2560 -s 676
        3⤵
        • Loads dropped DLL
        PID:2684

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\af659a1a2a185c7f25a784c26fd06b66e796ab0f8687088c891b8a5361cf9c7c.exe

    Filesize

    2.3MB

    MD5

    271c704e3e93cbe424ac22300a9438bc

    SHA1

    e0c87f2b57fa14381f592ede4e0282240a68d5ec

    SHA256

    648e42812f2169181c8e158d9b7b52d76fa2347a15b7ee14ff1ba4ba64a7efe1

    SHA512

    9014af986f270ee4dde2f6fed7f9c7f2bee161996522d528934963b67c5693fa1e11047aa4e7671a8387c8f1eaa8839fa72929bf5914df8b733f307406d7b9e5

  • memory/2364-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2364-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2560-11-0x000007FEF52D3000-0x000007FEF52D4000-memory.dmp

    Filesize

    4KB

  • memory/2560-12-0x000000013F5D0000-0x000000013F820000-memory.dmp

    Filesize

    2.3MB

  • memory/2560-36-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

    Filesize

    9.9MB

  • memory/2560-94-0x000007FEF52D3000-0x000007FEF52D4000-memory.dmp

    Filesize

    4KB

  • memory/2560-95-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

    Filesize

    9.9MB

  • memory/2560-98-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

    Filesize

    9.9MB