Analysis

  • max time kernel
    161s
  • max time network
    124s
  • platform
    windows10-1703_x64
  • resource
    win10-20230915-en
  • resource tags

    arch:x64arch:x86image:win10-20230915-enlocale:en-usos:windows10-1703-x64system
  • submitted
    23/09/2023, 11:43

General

  • Target

    a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe

  • Size

    321KB

  • MD5

    04f280d5c2f1c38c9b72cf9a6a337b76

  • SHA1

    06cefc593ae49fba94ce9de886c62a280f3a6c45

  • SHA256

    a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98

  • SHA512

    c995622991b4d9e1ef749af971df7ce7b342b060a4f313c63621c608c0a3580a520af3528a6039e06ba93e794e0a11b73d2e101be97e892fc08b30117a9389a7

  • SSDEEP

    3072:reHCeqhrSeku6tC0ttnfvndO/bzshi7lPWga4v7Tlwr8XpLcrt0pB:6HCrh2eku6tC0tt37QPWNWTlwor

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
  • Suspicious use of SetThreadContext 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 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\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe
    "C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4088
    • C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe
      "C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:5084

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/3368-5-0x0000000000DD0000-0x0000000000DE6000-memory.dmp

          Filesize

          88KB

        • memory/4088-1-0x0000000002670000-0x0000000002770000-memory.dmp

          Filesize

          1024KB

        • memory/4088-2-0x0000000002610000-0x0000000002619000-memory.dmp

          Filesize

          36KB

        • memory/5084-3-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/5084-4-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/5084-6-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB