Analysis

  • max time kernel
    118s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    02/11/2024, 19:47

General

  • Target

    10eab88a548196edc9a66157e801b2f0cf4ccadfa73859b4906642aacf696b49.exe

  • Size

    295KB

  • MD5

    cf3277c00d9724cf3f6b58ed5e53a8f1

  • SHA1

    cfc57b4745a39e20a4f0bee172e574ef8ed30379

  • SHA256

    10eab88a548196edc9a66157e801b2f0cf4ccadfa73859b4906642aacf696b49

  • SHA512

    7a7363b9ca351ab482413617b741a5bf51b305713aa44237c130169f4465e69b8106175661cf4f51432a949f8e9c850608af8fc6107274708a7f57a5c7687780

  • SSDEEP

    6144:k9//LL7OYk6EunLUDyJXOrY4VXRhDhl/Eu7mxKq9/:2/rDjLUDyJXOrnVXDDE8mxKo

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.

  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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\10eab88a548196edc9a66157e801b2f0cf4ccadfa73859b4906642aacf696b49.exe
    "C:\Users\Admin\AppData\Local\Temp\10eab88a548196edc9a66157e801b2f0cf4ccadfa73859b4906642aacf696b49.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:2248
    • C:\Users\Admin\AppData\Local\Temp\3582-490\10eab88a548196edc9a66157e801b2f0cf4ccadfa73859b4906642aacf696b49.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\10eab88a548196edc9a66157e801b2f0cf4ccadfa73859b4906642aacf696b49.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2184
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2184 -s 148
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:2744

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\10eab88a548196edc9a66157e801b2f0cf4ccadfa73859b4906642aacf696b49.exe

    Filesize

    254KB

    MD5

    e8bf72dd834a1159e359b0263e671e1f

    SHA1

    939852e495ff331990d1ad87ef5a255ecf6bca53

    SHA256

    2288cfa44b117adc76aca0c3722b122a056dd922d512486a8b7047cfb5d87bcc

    SHA512

    55235fa100686e1bae5f62078122bee66a08646d89978259a25b1333346dddf4d1989f5edecef66634bf6167bcf3b4e3a157d0cb750d9f1254ae8f26cff29383

  • memory/2184-9-0x0000000000400000-0x0000000000494000-memory.dmp

    Filesize

    592KB

  • memory/2184-93-0x0000000000400000-0x0000000000494000-memory.dmp

    Filesize

    592KB

  • memory/2248-4-0x0000000002D50000-0x0000000002DE4000-memory.dmp

    Filesize

    592KB

  • memory/2248-94-0x0000000002D50000-0x0000000002DE4000-memory.dmp

    Filesize

    592KB

  • memory/2248-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2248-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB