Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-02-2024 17:11

General

  • Target

    Quotation Drawing Specification.exe

  • Size

    62KB

  • MD5

    423c9605819245613a03f421d29bc24d

  • SHA1

    a913786f724a2d69a676a8b821b9f8cdb5bc9cbc

  • SHA256

    c64d2c1dcf51a5c9b9a52eed01e210f0e7c18a4afa42c26e59d852932d603834

  • SHA512

    c98cbd222069562f8c79cddb11424c413a97cce8b8d7d80666ee4e2a8ae2cfa48b4ddb7fb81e59e056b2e11f65a7d20674afd37fb365eaf0ed947cfa4028e534

  • SSDEEP

    768:7kgKgaBMfz0PuHcBkgQap6QdzpEm/xrbWUp5P8MF17TxfHIIIWyEFiRc:KuHcBkgnpdd6mp/pak7TxfHIIIWyei2

Malware Config

Signatures

  • Contacts a large (4693) amount of remote hosts 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Detects executables packed with or use KoiVM 1 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • 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.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\Quotation Drawing Specification.exe
    "C:\Users\Admin\AppData\Local\Temp\Quotation Drawing Specification.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks computer location settings
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3312
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5984
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
        3⤵
        • Creates scheduled task(s)
        PID:5432
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9DB2.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:928
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:6084
      • C:\Users\Admin\AppData\Roaming\svchost.exe
        "C:\Users\Admin\AppData\Roaming\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:5644

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp9DB2.tmp.bat

    Filesize

    151B

    MD5

    853a6a03f8420f5d5d67a5e9a4fa4010

    SHA1

    31734cba46a9c7778a85268faad1cfecfb423d1e

    SHA256

    ca284f18a92e5e93ed57cdb26010404f2a6cdc6a503c440e452eb86b67f3f0c6

    SHA512

    e6821a2772a05bb844abde93da2b2218c244cc19e8d4abda102188305561867d73a88ed34f4ff4bdf89c94ee09281af21fd6e4dee3a60b706285d4dcdaaca944

  • C:\Users\Admin\AppData\Roaming\svchost.exe

    Filesize

    62KB

    MD5

    423c9605819245613a03f421d29bc24d

    SHA1

    a913786f724a2d69a676a8b821b9f8cdb5bc9cbc

    SHA256

    c64d2c1dcf51a5c9b9a52eed01e210f0e7c18a4afa42c26e59d852932d603834

    SHA512

    c98cbd222069562f8c79cddb11424c413a97cce8b8d7d80666ee4e2a8ae2cfa48b4ddb7fb81e59e056b2e11f65a7d20674afd37fb365eaf0ed947cfa4028e534

  • memory/3312-0-0x00000277AD3E0000-0x00000277AD3F2000-memory.dmp

    Filesize

    72KB

  • memory/3312-1-0x00000277AD7B0000-0x00000277AD7CA000-memory.dmp

    Filesize

    104KB

  • memory/3312-2-0x00007FFB65610000-0x00007FFB660D1000-memory.dmp

    Filesize

    10.8MB

  • memory/3312-3-0x00000277AD7D0000-0x00000277AD7E0000-memory.dmp

    Filesize

    64KB

  • memory/3312-4-0x00007FFB65610000-0x00007FFB660D1000-memory.dmp

    Filesize

    10.8MB

  • memory/3312-5-0x00000277CA860000-0x00000277CA93C000-memory.dmp

    Filesize

    880KB

  • memory/3312-10-0x00007FFB65610000-0x00007FFB660D1000-memory.dmp

    Filesize

    10.8MB

  • memory/5644-15-0x00007FFB65610000-0x00007FFB660D1000-memory.dmp

    Filesize

    10.8MB

  • memory/5644-16-0x00007FFB65610000-0x00007FFB660D1000-memory.dmp

    Filesize

    10.8MB