Analysis

  • max time kernel
    92s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-12-2024 19:55

General

  • Target

    d6d6f0e865aa4d08871752567f95645ddd966b1a044f048f9f6940a3560c7fd6N.exe

  • Size

    5.6MB

  • MD5

    c258627dc4713143f84e08683d0b75d0

  • SHA1

    ce737c10059a33305ea08be0189c949d5f282c88

  • SHA256

    d6d6f0e865aa4d08871752567f95645ddd966b1a044f048f9f6940a3560c7fd6

  • SHA512

    c3b51312fdc60579a524f6c398b1aff8c0a0dadb0ed893bb6bb6030756e7b00aa6cf7db0848fa93953ff8b1f2d1c18c5494aeaad11ce5bb5367fe7cd458a88b3

  • SSDEEP

    98304:3WpYFiMWrWb3axxkSNGFt01gP3nNqiJ+Jhki7:GpsV3axxzN806vNLQ7

Malware Config

Signatures

  • Detect Neshta payload 4 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Neshta family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 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 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d6d6f0e865aa4d08871752567f95645ddd966b1a044f048f9f6940a3560c7fd6N.exe
    "C:\Users\Admin\AppData\Local\Temp\d6d6f0e865aa4d08871752567f95645ddd966b1a044f048f9f6940a3560c7fd6N.exe"
    1⤵
    • Checks computer location settings
    • 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:4508
    • C:\Users\Admin\AppData\Local\Temp\3582-490\d6d6f0e865aa4d08871752567f95645ddd966b1a044f048f9f6940a3560c7fd6N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\d6d6f0e865aa4d08871752567f95645ddd966b1a044f048f9f6940a3560c7fd6N.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3528
      • C:\Users\Admin\AppData\Local\Temp\3582-490\d6d6f0e865aa4d08871752567f95645ddd966b1a044f048f9f6940a3560c7fd6N.exe
        C:\Users\Admin\AppData\Local\Temp\3582-490\d6d6f0e865aa4d08871752567f95645ddd966b1a044f048f9f6940a3560c7fd6N.exe --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\crash_count.txt" --url=https://crashstats-collector.opera.com/collector/submit --annotation=channel=Stable --annotation=plat=Win64 --annotation=prod=OperaDesktopGX --annotation=ver=95.0.4635.88 --initial-client-data=0x264,0x268,0x26c,0x240,0x270,0x7ff685b8dbf8,0x7ff685b8dc08,0x7ff685b8dc18
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:4452

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

    Filesize

    86KB

    MD5

    3b73078a714bf61d1c19ebc3afc0e454

    SHA1

    9abeabd74613a2f533e2244c9ee6f967188e4e7e

    SHA256

    ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

    SHA512

    75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

  • C:\Users\Admin\AppData\Local\Temp\3582-490\d6d6f0e865aa4d08871752567f95645ddd966b1a044f048f9f6940a3560c7fd6N.exe

    Filesize

    5.6MB

    MD5

    386238555736770273cc52c7b62992d1

    SHA1

    eabd86814cf03cf3a1323c58cdfba914e3505ccc

    SHA256

    16ba4e3b2788a938e2ce81b2d6aedeaf35926b1d03573bf6574423cd4d39ab85

    SHA512

    ddad84d886a803a9c978665fa126c32671719edf8504e42b8ace0b161d14d982501f8fc45490b409af548a24a54a71ed19a9b8c1394cda7c9be018c7d34afa9e

  • C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\Crash Reports\reports\35317f16-b707-4086-b261-e2ed13cc3c2a.dmp

    Filesize

    259KB

    MD5

    e1ee043d0cf149ec9ec85e5cf548be07

    SHA1

    6d0db9f9b9fd74ebde97c4fd6aadf494e388d806

    SHA256

    6ec8e21843c930aae80582bcd586e0f794102db11b84e034ea4cb913ece35d93

    SHA512

    fc663111a28833adc3209fe49a0abc35d22ac49254d52e3dc9c50782fc1265e484d5a578b063a1248a7f56d958f92c1f4c8b4b79a00a8ad3583e046bce196e14

  • C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\Crash Reports\settings.dat

    Filesize

    40B

    MD5

    e75c8d5a62b3d00d3428b52a84751476

    SHA1

    fde504892b26fc4f0f5809a3ab1bc7bf58003b8a

    SHA256

    4382babfa69fe95b678f27e6ce37e783e93a88c9f19fbfb7c0073f97b89a62ab

    SHA512

    59e217bc60addb9ec689c9ac9ac2996a5895d5a1b51d68a31ca06daab37301296f34e0271bbecc3d13b80940470bf1024bc36b57b8eea07e89af6285e9032cf7

  • memory/4508-117-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4508-118-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4508-120-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB