Analysis

  • max time kernel
    148s
  • max time network
    131s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    14-12-2020 15:55

General

  • Target

    Factura__pdf__10281.exe

  • Size

    753KB

  • MD5

    b645095ae08ac1c280312d614831bf9d

  • SHA1

    daa6995076e713b6b608f3d2d3bf83cf63564884

  • SHA256

    a4a71dffc22c8c69f530b70613fc5d2d4edad6d8c61acc66aa3f5735ea7e3dee

  • SHA512

    9efb040c9da66d375416ab7862f7ad046e17fe529cc13997f04f5aac3cbb45a568978e31f65df7f8cc7b90548e6b44c73323edb2c11b3616882e8da282017032

Malware Config

Signatures

  • BetaBot

    Beta Bot is a Trojan that infects computers and disables Antivirus.

  • Modifies firewall policy service 2 TTPs 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Sets file execution options in registry 2 TTPs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 6 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops desktop.ini file(s) 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 10 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Checks processor information in registry 2 TTPs 4 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies Internet Explorer Protected Mode 1 TTPs 4 IoCs
  • Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
  • NTFS ADS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 34 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 28 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Factura__pdf__10281.exe
    "C:\Users\Admin\AppData\Local\Temp\Factura__pdf__10281.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1192
    • C:\Users\Admin\AppData\Local\Temp\Factura__pdf__10281.exe
      "C:\Users\Admin\AppData\Local\Temp\Factura__pdf__10281.exe"
      2⤵
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Checks processor information in registry
      • Suspicious behavior: MapViewOfSection
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3860
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Modifies firewall policy service
        • Checks BIOS information in registry
        • Adds Run key to start application
        • Drops desktop.ini file(s)
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Checks processor information in registry
        • Enumerates system info in registry
        • Modifies Internet Explorer Protected Mode
        • Modifies Internet Explorer Protected Mode Banner
        • Modifies Internet Explorer settings
        • NTFS ADS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:368
        • C:\Users\Admin\AppData\Local\Temp\y19e5m95555o79_1.exe
          /suac
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          PID:980

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

2
T1060

Defense Evasion

Modify Registry

6
T1112

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\y19e5m95555o79_1.exe
    MD5

    b645095ae08ac1c280312d614831bf9d

    SHA1

    daa6995076e713b6b608f3d2d3bf83cf63564884

    SHA256

    a4a71dffc22c8c69f530b70613fc5d2d4edad6d8c61acc66aa3f5735ea7e3dee

    SHA512

    9efb040c9da66d375416ab7862f7ad046e17fe529cc13997f04f5aac3cbb45a568978e31f65df7f8cc7b90548e6b44c73323edb2c11b3616882e8da282017032

  • C:\Users\Admin\AppData\Local\Temp\y19e5m95555o79_1.exe
    MD5

    b645095ae08ac1c280312d614831bf9d

    SHA1

    daa6995076e713b6b608f3d2d3bf83cf63564884

    SHA256

    a4a71dffc22c8c69f530b70613fc5d2d4edad6d8c61acc66aa3f5735ea7e3dee

    SHA512

    9efb040c9da66d375416ab7862f7ad046e17fe529cc13997f04f5aac3cbb45a568978e31f65df7f8cc7b90548e6b44c73323edb2c11b3616882e8da282017032

  • memory/368-7-0x0000000000000000-mapping.dmp
  • memory/368-8-0x00000000011B0000-0x00000000015F0000-memory.dmp
    Filesize

    4.2MB

  • memory/368-9-0x00000000011B0000-0x00000000015F0000-memory.dmp
    Filesize

    4.2MB

  • memory/980-10-0x0000000000000000-mapping.dmp
  • memory/3860-2-0x0000000000400000-0x0000000000435000-memory.dmp
    Filesize

    212KB

  • memory/3860-3-0x00000000004015C6-mapping.dmp
  • memory/3860-4-0x0000000000400000-0x0000000000435000-memory.dmp
    Filesize

    212KB

  • memory/3860-5-0x00000000027D0000-0x00000000028F6000-memory.dmp
    Filesize

    1.1MB

  • memory/3860-6-0x0000000002C20000-0x0000000003060000-memory.dmp
    Filesize

    4.2MB