Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    08-11-2024 02:19

General

  • Target

    a09b28251c22db508a56447f5808a4ae17859cd240ee5fdc2b8fdf39b1c6fb6e.exe

  • Size

    1.6MB

  • MD5

    ac09de5f8ff3057ba3bc002fa0c7ac24

  • SHA1

    4d09a5987078dba86b27d59c2ce6294688c887e3

  • SHA256

    a09b28251c22db508a56447f5808a4ae17859cd240ee5fdc2b8fdf39b1c6fb6e

  • SHA512

    fead2fb25c16e4cab2501c9fce42872ddb5e321f0b4e20361ad97f614726fe22cf8b5f494385d9fe30aef209b21f552bf5c9b275c7df49d5d50b2701c21bcc43

  • SSDEEP

    24576:R7eokafnkAwgcU+29fR4PQviXq1pj3EDT5m+m8/a:R6efnkdlUF92PGBOT3m8y

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 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 behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a09b28251c22db508a56447f5808a4ae17859cd240ee5fdc2b8fdf39b1c6fb6e.exe
    "C:\Users\Admin\AppData\Local\Temp\a09b28251c22db508a56447f5808a4ae17859cd240ee5fdc2b8fdf39b1c6fb6e.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:2696
    • C:\Users\Admin\AppData\Local\Temp\3582-490\a09b28251c22db508a56447f5808a4ae17859cd240ee5fdc2b8fdf39b1c6fb6e.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\a09b28251c22db508a56447f5808a4ae17859cd240ee5fdc2b8fdf39b1c6fb6e.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2816

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\a09b28251c22db508a56447f5808a4ae17859cd240ee5fdc2b8fdf39b1c6fb6e.exe

    Filesize

    1.5MB

    MD5

    cd9a95efa8cc51e7b144936c7165510b

    SHA1

    497f128eef8c3909e2e69ed158bc50ce1ae73db7

    SHA256

    849291120b86821a137e9465dab243a8e67014e81be1604d7998011df03ab256

    SHA512

    22615c4a8af7bc2e21bec363953a442a43bc33a32c2ea4731dbcecb221f464ad7050965a793c887532fa7d28ab390f278b583cde1923566f545e5ee1d0408504

  • memory/2696-87-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2696-89-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2816-11-0x0000000140000000-0x00000001405E8000-memory.dmp

    Filesize

    5.9MB

  • memory/2816-12-0x0000000140000000-0x00000001405E8000-memory.dmp

    Filesize

    5.9MB

  • memory/2816-13-0x0000000140000000-0x00000001405E8000-memory.dmp

    Filesize

    5.9MB

  • memory/2816-86-0x0000000140000000-0x00000001405E8000-memory.dmp

    Filesize

    5.9MB