Analysis

  • max time kernel
    23s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-01-2024 10:51

General

  • Target

    fbec4956a178bb65221cf87ab537b828.exe

  • Size

    207KB

  • MD5

    fbec4956a178bb65221cf87ab537b828

  • SHA1

    5e587f1f30a712e45b35e451af167a5ba54f508d

  • SHA256

    f22e8c6027000f421c70d5733ff537d1e2e49deb5cc1d6ad3287175dffc2668e

  • SHA512

    805d8ac96078aa598e2cd562e60748aeb9f36710490015d3203f309d26f341795fd1a3c82e28cb828947ff99777985fd00a540d3e1f42edd0b471a0739f8a490

  • SSDEEP

    3072:Bo/htLJYeiJiiKVYgTemVAJny/8WyrtD7wmxRivBL2A:uTLJYefYgT/AByyug

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Signatures

  • BetaBot

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

  • Modifies firewall policy service 2 TTPs 4 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Sets file execution options in registry 2 TTPs 2 IoCs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Program crash 2 IoCs
  • NSIS installer 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • 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
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 30 IoCs
  • Suspicious use of WriteProcessMemory 6 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\fbec4956a178bb65221cf87ab537b828.exe
    "C:\Users\Admin\AppData\Local\Temp\fbec4956a178bb65221cf87ab537b828.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:3716
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 384
      2⤵
      • Program crash
      PID:1724
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3716 -ip 3716
    1⤵
      PID:3764
    • C:\Users\Admin\AppData\Local\Temp\AA3A.exe
      C:\Users\Admin\AppData\Local\Temp\AA3A.exe
      1⤵
      • Sets file execution options in registry
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Checks processor information in registry
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4544
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        2⤵
        • Modifies firewall policy service
        • Checks BIOS information in registry
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:868
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 868 -s 1116
          3⤵
          • Program crash
          PID:2172
    • C:\Users\Admin\AppData\Local\Temp\B14F.exe
      C:\Users\Admin\AppData\Local\Temp\B14F.exe
      1⤵
        PID:3064
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 868 -ip 868
        1⤵
          PID:1040

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\AA3A.exe

          Filesize

          360KB

          MD5

          80c413180b6bd0dd664adc4e0665b494

          SHA1

          e791e4a3391fc6b7bcb58399cd4fa3c52a06b940

          SHA256

          6d99cec56614b6b8a23dfa84a50c6bbfde535411c6366ac2bcc20c9f5af62880

          SHA512

          347f4ae6f308b37d055a6177478e45ab3838d7020abed70c7aa138d2c3771e709de204da8550aebdcaa6139d869dc7328cc7e645c4dd48d1066f9ad70225644a

        • C:\Users\Admin\AppData\Local\Temp\B14F.exe

          Filesize

          91KB

          MD5

          8c499be53a731d3e51a43f614ecf4925

          SHA1

          e8a2040e68b04584b40c28cd0449c48c9df744b0

          SHA256

          ffe89930246e969127c6dd170a5cb8ea96d90b02fe1257b7240c8fd06cfd85f4

          SHA512

          4bd930782a55fbf685c07c20662ef66520a936dfb675f99aa3389b8d951e28d8a1449f39358327ec342009eaca52674b011421fe827ad845887ed8450e1bb96f

        • memory/868-30-0x00000000001B0000-0x0000000000274000-memory.dmp

          Filesize

          784KB

        • memory/868-27-0x00000000003A0000-0x00000000007D4000-memory.dmp

          Filesize

          4.2MB

        • memory/868-43-0x00000000003A0000-0x00000000007D3000-memory.dmp

          Filesize

          4.2MB

        • memory/868-44-0x00000000001B0000-0x0000000000274000-memory.dmp

          Filesize

          784KB

        • memory/868-25-0x00000000003A0000-0x00000000007D4000-memory.dmp

          Filesize

          4.2MB

        • memory/868-41-0x0000000004100000-0x0000000004102000-memory.dmp

          Filesize

          8KB

        • memory/868-28-0x00000000001B0000-0x0000000000274000-memory.dmp

          Filesize

          784KB

        • memory/3064-40-0x0000000000970000-0x0000000000F06000-memory.dmp

          Filesize

          5.6MB

        • memory/3064-38-0x0000000000970000-0x0000000000F06000-memory.dmp

          Filesize

          5.6MB

        • memory/3488-4-0x00000000032D0000-0x00000000032E6000-memory.dmp

          Filesize

          88KB

        • memory/3716-8-0x00000000004C0000-0x00000000004C9000-memory.dmp

          Filesize

          36KB

        • memory/3716-1-0x0000000000580000-0x0000000000680000-memory.dmp

          Filesize

          1024KB

        • memory/3716-7-0x0000000000400000-0x0000000000439000-memory.dmp

          Filesize

          228KB

        • memory/3716-3-0x0000000000400000-0x0000000000439000-memory.dmp

          Filesize

          228KB

        • memory/3716-2-0x00000000004C0000-0x00000000004C9000-memory.dmp

          Filesize

          36KB

        • memory/4544-32-0x0000000000710000-0x0000000000776000-memory.dmp

          Filesize

          408KB

        • memory/4544-17-0x0000000000710000-0x0000000000776000-memory.dmp

          Filesize

          408KB

        • memory/4544-21-0x0000000077374000-0x0000000077375000-memory.dmp

          Filesize

          4KB

        • memory/4544-33-0x0000000002820000-0x0000000002821000-memory.dmp

          Filesize

          4KB

        • memory/4544-24-0x0000000000710000-0x0000000000776000-memory.dmp

          Filesize

          408KB

        • memory/4544-22-0x0000000002800000-0x0000000002801000-memory.dmp

          Filesize

          4KB

        • memory/4544-18-0x0000000000790000-0x000000000079D000-memory.dmp

          Filesize

          52KB

        • memory/4544-15-0x0000000000010000-0x000000000006D000-memory.dmp

          Filesize

          372KB

        • memory/4544-23-0x0000000002830000-0x000000000283C000-memory.dmp

          Filesize

          48KB

        • memory/4544-19-0x0000000000710000-0x0000000000776000-memory.dmp

          Filesize

          408KB