Analysis

  • max time kernel
    162s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    05-02-2022 03:48

General

  • Target

    d61d30af558b7db5ed1aaf5716a5756a14b63a2d42d941add259199d99f72b11.exe

  • Size

    1.8MB

  • MD5

    1c7859cfe4b4787eb93bc72f0504251c

  • SHA1

    751c2f05ac454fbee88bd8a735768875890e7c14

  • SHA256

    d61d30af558b7db5ed1aaf5716a5756a14b63a2d42d941add259199d99f72b11

  • SHA512

    d7772bc31abbf4f7c5c055a0ac64c4374b5ddaee81c78657e323dd2a24a7c541da226adb91458bc7241f534a31cf0bfe77950ad562fbd45a192f0751bc5bea7c

Malware Config

Signatures

  • Detect Neshta Payload 1 IoCs
  • 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.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Sets service image path in registry 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d61d30af558b7db5ed1aaf5716a5756a14b63a2d42d941add259199d99f72b11.exe
    "C:\Users\Admin\AppData\Local\Temp\d61d30af558b7db5ed1aaf5716a5756a14b63a2d42d941add259199d99f72b11.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks BIOS information in registry
    • Checks computer location settings
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    PID:240
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3244
  • C:\Windows\System32\WaaSMedicAgent.exe
    C:\Windows\System32\WaaSMedicAgent.exe f3fdac29b00c199d4ae065282942e92c lb+nWg2G9E+DX8Cex7Iv0g.0.1.0.0.0
    1⤵
    • Modifies data under HKEY_USERS
    PID:384
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:2488

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/240-130-0x0000000000400000-0x0000000000779000-memory.dmp
    Filesize

    3.5MB

  • memory/240-131-0x0000000002A20000-0x0000000002A21000-memory.dmp
    Filesize

    4KB

  • memory/240-132-0x0000000002A10000-0x0000000002A12000-memory.dmp
    Filesize

    8KB

  • memory/240-133-0x0000000002A00000-0x0000000002A01000-memory.dmp
    Filesize

    4KB

  • memory/240-134-0x0000000002A40000-0x0000000002A41000-memory.dmp
    Filesize

    4KB

  • memory/240-135-0x0000000002A50000-0x0000000002A51000-memory.dmp
    Filesize

    4KB

  • memory/240-136-0x0000000002A30000-0x0000000002A31000-memory.dmp
    Filesize

    4KB

  • memory/240-137-0x0000000002A70000-0x0000000002A71000-memory.dmp
    Filesize

    4KB

  • memory/240-138-0x0000000002A60000-0x0000000002A61000-memory.dmp
    Filesize

    4KB