Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2024 05:08

General

  • Target

    e1a6b3797c4e28b4c10f6732072a7acfc0be8215e63b716e6d4b4a3f11931946.exe

  • Size

    1.2MB

  • MD5

    a54470860fd882b2dda8e374291e5987

  • SHA1

    3bb985702d5f2a595bcb9010de541dff62071fe3

  • SHA256

    e1a6b3797c4e28b4c10f6732072a7acfc0be8215e63b716e6d4b4a3f11931946

  • SHA512

    21c7cbc0be36787a0be45afe3803b48b35723882edca77ce2f07959b3e116e90004d63660861ef35f71cff8a805b9bb4e14178be575dc2fbdbb00d5aaf2e5231

  • SSDEEP

    24576:cRfateqJ1luNUUVon9mFyTKBhyv7MMMMMM332XmeCs:ctQuNUUVoIFyGBh6MMMMMM2Wi

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 9 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\e1a6b3797c4e28b4c10f6732072a7acfc0be8215e63b716e6d4b4a3f11931946.exe
    "C:\Users\Admin\AppData\Local\Temp\e1a6b3797c4e28b4c10f6732072a7acfc0be8215e63b716e6d4b4a3f11931946.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\e1a6b3797c4e28b4c10f6732072a7acfc0be8215e63b716e6d4b4a3f11931946.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\e1a6b3797c4e28b4c10f6732072a7acfc0be8215e63b716e6d4b4a3f11931946.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2804
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2804 -s 188
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:2364

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\e1a6b3797c4e28b4c10f6732072a7acfc0be8215e63b716e6d4b4a3f11931946.exe

    Filesize

    1.2MB

    MD5

    485a42300ca91dd6e92b51c2b9968b84

    SHA1

    86d43c5cb713d856c3ac261f1f9a5b17e27fafc0

    SHA256

    c219a1c0f9f84b6fe140b03713636d5e0a67b578fe750a2e8363ddd3bbd1a51a

    SHA512

    043bfb02dd187180841d8890b03596ae4d72a25c450d3c1ec15790682f4ce05b8a81ada837ca22a9ddcb684cca571c007e98848fafdc1fe75087b3868b460ed3

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

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • memory/2692-9-0x0000000002CD0000-0x0000000002E7B000-memory.dmp

    Filesize

    1.7MB

  • memory/2692-92-0x0000000002CD0000-0x0000000002E7B000-memory.dmp

    Filesize

    1.7MB

  • memory/2692-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2692-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2804-12-0x0000000000C20000-0x0000000000DCB000-memory.dmp

    Filesize

    1.7MB