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Analysis

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

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    27/11/2024, 21:51

General

  • Target

    ff5f824097fe30bf84f613b98cda035f6b16a99e81fa362661713fd297271da8N.exe

  • Size

    2.2MB

  • MD5

    80f50dc968b10441a1ae81affd023ac0

  • SHA1

    3bf04ce75f26bb76202e2ebd8a3226c5bdb99fc5

  • SHA256

    ff5f824097fe30bf84f613b98cda035f6b16a99e81fa362661713fd297271da8

  • SHA512

    7b279339c5b71eb34e829e68ea7cd7ed1aa6abffae5879bb9c3a1b92fd83f9d33f51b0c99058fc1b7c3933c31ee1df3209c0e4c9f505b83117702f4b7e21470a

  • SSDEEP

    24576:FcFu/z+MJuqr26tyC1wZxk+V0WBR0d9g1matUiAuVPRPWlYcAicf1otl+:SoiMrExOWBDQuVPRPABjcf1Cl+

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 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).

  • Program crash 1 IoCs
  • 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 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ff5f824097fe30bf84f613b98cda035f6b16a99e81fa362661713fd297271da8N.exe
    "C:\Users\Admin\AppData\Local\Temp\ff5f824097fe30bf84f613b98cda035f6b16a99e81fa362661713fd297271da8N.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:1560
    • C:\Users\Admin\AppData\Local\Temp\3582-490\ff5f824097fe30bf84f613b98cda035f6b16a99e81fa362661713fd297271da8N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\ff5f824097fe30bf84f613b98cda035f6b16a99e81fa362661713fd297271da8N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1228
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1228 -s 528
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:2544

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\ff5f824097fe30bf84f613b98cda035f6b16a99e81fa362661713fd297271da8N.exe

    Filesize

    2.1MB

    MD5

    17968c3b86dc973396824d9ad39b57c1

    SHA1

    c651f57d2d76dc8d23e3aa0ae9a9d0e3d82b3a5e

    SHA256

    ee56cdcfddbbe3c1d1af7966a7da9e49892de78fed6c9756dc53cf9c9238b6d8

    SHA512

    8b3b5b23f5bd9d8f63dd1e1fa6aad3c0040a39f54225dba83c5761eb71ca83c1c27da2528c6101d2f085ff8e4a685116942d96999526e37871bdae7e92f414cd

  • memory/1228-12-0x00000000740CE000-0x00000000740CF000-memory.dmp

    Filesize

    4KB

  • memory/1228-13-0x0000000000220000-0x0000000000444000-memory.dmp

    Filesize

    2.1MB

  • memory/1560-91-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1560-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB