Analysis

  • max time kernel
    102s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-10-2022 17:57

General

  • Target

    fef0052a4e17be3940c4edc522f334c9dd7b085fa891f465fe23879ae2017dd8.exe

  • Size

    524KB

  • MD5

    07a3f03515b7d2f748613a061db2d430

  • SHA1

    b43500cd1089165b623fab570107fcf75efb42fb

  • SHA256

    fef0052a4e17be3940c4edc522f334c9dd7b085fa891f465fe23879ae2017dd8

  • SHA512

    c40eb10f2612f3075fbd13861a1a5a7e21885a1840e4c2995a99c824ffe84a4158490a64146eab5285e0cf60554ba08be2b1a29741fd3b8ec204e39eacd6d22a

  • SSDEEP

    12288:uMAJxItExFSJxnNXx6Bk2QZPEX9GO/Di/Dr:79sSbyBRQMMT

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

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

  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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). Likely ransomware behaviour.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fef0052a4e17be3940c4edc522f334c9dd7b085fa891f465fe23879ae2017dd8.exe
    "C:\Users\Admin\AppData\Local\Temp\fef0052a4e17be3940c4edc522f334c9dd7b085fa891f465fe23879ae2017dd8.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4288
    • C:\Users\Admin\AppData\Local\Temp\3582-490\fef0052a4e17be3940c4edc522f334c9dd7b085fa891f465fe23879ae2017dd8.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\fef0052a4e17be3940c4edc522f334c9dd7b085fa891f465fe23879ae2017dd8.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2412
      • C:\Users\Admin\AppData\Local\Temp\3582-490\fef0052a4e17be3940c4edc522f334c9dd7b085fa891f465fe23879ae2017dd8.exe
        "C:\Users\Admin\AppData\Local\Temp\3582-490\fef0052a4e17be3940c4edc522f334c9dd7b085fa891f465fe23879ae2017dd8.exe" -burn.unelevated BurnPipe.{6864F923-1791-4873-B7FB-FCDE90C53BD0} {C587A315-E11B-4E9A-8412-38ABC309E60B} 2412
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:4144

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\fef0052a4e17be3940c4edc522f334c9dd7b085fa891f465fe23879ae2017dd8.exe

    Filesize

    483KB

    MD5

    7e5c0805015650c629a282f326cfca7d

    SHA1

    31c947ccf93d789aa7648dc4571dcfc827361412

    SHA256

    e293eeeff61bb0d93371cf0a17556bfc1bd6c9dcd597e9aec2a47c9d7a10cbd3

    SHA512

    46f57b5a184050e5235b990eb811afcdeb55da34c08af7a0097430edb839371ffabae9d17eb89f2c73f3ba9d1346d501d24156a37cb22041bae5f205a1bba28a

  • C:\Users\Admin\AppData\Local\Temp\3582-490\fef0052a4e17be3940c4edc522f334c9dd7b085fa891f465fe23879ae2017dd8.exe

    Filesize

    483KB

    MD5

    7e5c0805015650c629a282f326cfca7d

    SHA1

    31c947ccf93d789aa7648dc4571dcfc827361412

    SHA256

    e293eeeff61bb0d93371cf0a17556bfc1bd6c9dcd597e9aec2a47c9d7a10cbd3

    SHA512

    46f57b5a184050e5235b990eb811afcdeb55da34c08af7a0097430edb839371ffabae9d17eb89f2c73f3ba9d1346d501d24156a37cb22041bae5f205a1bba28a

  • C:\Users\Admin\AppData\Local\Temp\3582-490\fef0052a4e17be3940c4edc522f334c9dd7b085fa891f465fe23879ae2017dd8.exe

    Filesize

    483KB

    MD5

    7e5c0805015650c629a282f326cfca7d

    SHA1

    31c947ccf93d789aa7648dc4571dcfc827361412

    SHA256

    e293eeeff61bb0d93371cf0a17556bfc1bd6c9dcd597e9aec2a47c9d7a10cbd3

    SHA512

    46f57b5a184050e5235b990eb811afcdeb55da34c08af7a0097430edb839371ffabae9d17eb89f2c73f3ba9d1346d501d24156a37cb22041bae5f205a1bba28a

  • C:\Users\Admin\AppData\Local\Temp\{8e70e4e1-06d7-470b-9f74-a51bef21088e}\.ba1\wixstdba.dll

    Filesize

    126KB

    MD5

    d7bf29763354eda154aad637017b5483

    SHA1

    dfa7d296bfeecde738ef4708aaabfebec6bc1e48

    SHA256

    7f5f8fcfd84132579f07e395e65b44e1b031fe01a299bce0e3dd590131c5cb93

    SHA512

    1c76175732fe68b9b12cb46077daa21e086041adbd65401717a9a1b5f3c516e03c35a90897c22c7281647d6af4a1a5ffb3fbd5706ea376d8f6e574d27396019c

  • memory/2412-132-0x0000000000000000-mapping.dmp

  • memory/4144-135-0x0000000000000000-mapping.dmp