Analysis

  • max time kernel
    150s
  • max time network
    51s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-12-2023 01:29

General

  • Target

    c94dc9c2bcff3a56a2bff590eea3cc4b8dca265bf9a62c3a586c20601b6ed8f0.exe

  • Size

    206KB

  • MD5

    8c1ab7b76a63c7e42a5c71117cf5279c

  • SHA1

    6798daea8e0c7e914e470fbbde5446656dd179f9

  • SHA256

    c94dc9c2bcff3a56a2bff590eea3cc4b8dca265bf9a62c3a586c20601b6ed8f0

  • SHA512

    e90bfde6b955b28b478c2757606d39932417c47194fac7a8ec3e73e6a592b1a7d7e4dc6c40c92f939350e7626e4a20ecfa7283b63db59e9fdb6bf08b7f6d1dee

  • SSDEEP

    3072:EEbx6L3uNUQJa9guOUepD7fxRhRoHf0iFnRX4nTo5f5hTY:Px6LeN1EMN3oHfJfYiT

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

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Program crash 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 12 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\c94dc9c2bcff3a56a2bff590eea3cc4b8dca265bf9a62c3a586c20601b6ed8f0.exe
    "C:\Users\Admin\AppData\Local\Temp\c94dc9c2bcff3a56a2bff590eea3cc4b8dca265bf9a62c3a586c20601b6ed8f0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2300
    • C:\Users\Admin\AppData\Local\Temp\c94dc9c2bcff3a56a2bff590eea3cc4b8dca265bf9a62c3a586c20601b6ed8f0.exe
      "C:\Users\Admin\AppData\Local\Temp\c94dc9c2bcff3a56a2bff590eea3cc4b8dca265bf9a62c3a586c20601b6ed8f0.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:4468
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4468 -s 332
        3⤵
        • Program crash
        PID:384
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4468 -ip 4468
    1⤵
      PID:5104
    • C:\Users\Admin\AppData\Roaming\hgevwgw
      C:\Users\Admin\AppData\Roaming\hgevwgw
      1⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:60
      • C:\Users\Admin\AppData\Roaming\hgevwgw
        C:\Users\Admin\AppData\Roaming\hgevwgw
        2⤵
        • Executes dropped EXE
        • Checks SCSI registry key(s)
        • Suspicious behavior: MapViewOfSection
        PID:1400
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1400 -s 328
          3⤵
          • Program crash
          PID:836
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1400 -ip 1400
      1⤵
        PID:4056

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Roaming\hgevwgw

        Filesize

        206KB

        MD5

        8c1ab7b76a63c7e42a5c71117cf5279c

        SHA1

        6798daea8e0c7e914e470fbbde5446656dd179f9

        SHA256

        c94dc9c2bcff3a56a2bff590eea3cc4b8dca265bf9a62c3a586c20601b6ed8f0

        SHA512

        e90bfde6b955b28b478c2757606d39932417c47194fac7a8ec3e73e6a592b1a7d7e4dc6c40c92f939350e7626e4a20ecfa7283b63db59e9fdb6bf08b7f6d1dee

      • memory/60-19-0x0000000000870000-0x0000000000970000-memory.dmp

        Filesize

        1024KB

      • memory/1400-20-0x0000000000400000-0x0000000000409000-memory.dmp

        Filesize

        36KB

      • memory/1400-24-0x0000000000400000-0x0000000000409000-memory.dmp

        Filesize

        36KB

      • memory/2300-3-0x00000000008D0000-0x00000000008D9000-memory.dmp

        Filesize

        36KB

      • memory/2300-2-0x0000000000AA0000-0x0000000000BA0000-memory.dmp

        Filesize

        1024KB

      • memory/3300-6-0x0000000002F20000-0x0000000002F36000-memory.dmp

        Filesize

        88KB

      • memory/3300-21-0x0000000002FF0000-0x0000000003006000-memory.dmp

        Filesize

        88KB

      • memory/4468-4-0x0000000000400000-0x0000000000409000-memory.dmp

        Filesize

        36KB

      • memory/4468-1-0x0000000000400000-0x0000000000409000-memory.dmp

        Filesize

        36KB

      • memory/4468-5-0x0000000000400000-0x0000000000409000-memory.dmp

        Filesize

        36KB

      • memory/4468-9-0x0000000000400000-0x0000000000409000-memory.dmp

        Filesize

        36KB