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Overview

overview

10

Static

static

3

2b18e84891...5c.exe

windows7-x64

10

2b18e84891...5c.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    113s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/12/2023, 06:04

Sharing

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General

  • Target

    2b18e848913549f52ef1b3c99411ef5c.exe

  • Size

    177KB

  • MD5

    2b18e848913549f52ef1b3c99411ef5c

  • SHA1

    deeae31755acdf4dac3c9badd383d0602eb7449f

  • SHA256

    faf49f9b1d785e077bd17c37eddec80c57d3ffc843a745e6854c9b7a6812b7e0

  • SHA512

    ec5550bedc4ce1daa1ea1c9bdd9c2d9a762db86a27ed79db0e82abd60fed4a8b8390d94ef683e6b4380e9967b91b867c863bd18bdeec355c6f059fcda6957592

  • SSDEEP

    3072:D6abkbeQNnL8RkJ+W5wSRFHHwhZoWC9sI5/DuT61m:D6TblNnLmLUHwhZU9sI5/

Score
10/10
smokeloaderbackdoortrojan

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://readinglistforaugust1.xyz/

http://readinglistforaugust2.xyz/

http://readinglistforaugust3.xyz/

http://readinglistforaugust4.xyz/

http://readinglistforaugust5.xyz/

http://readinglistforaugust6.xyz/

http://readinglistforaugust7.xyz/

http://readinglistforaugust8.xyz/

http://readinglistforaugust9.xyz/

http://readinglistforaugust10.xyz/

http://readinglistforaugust1.site/

http://readinglistforaugust2.site/

http://readinglistforaugust3.site/

http://readinglistforaugust4.site/

http://readinglistforaugust5.site/

http://readinglistforaugust6.site/

http://readinglistforaugust7.site/

http://readinglistforaugust8.site/

http://readinglistforaugust9.site/

http://readinglistforaugust10.site/
rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

    trojanbackdoorsmokeloader
  • Deletes itself 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 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: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of UnmapMainImage 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.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\2b18e848913549f52ef1b3c99411ef5c.exe
    "C:\Users\Admin\AppData\Local\Temp\2b18e848913549f52ef1b3c99411ef5c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1772
    • C:\Users\Admin\AppData\Local\Temp\2b18e848913549f52ef1b3c99411ef5c.exe
      "C:\Users\Admin\AppData\Local\Temp\2b18e848913549f52ef1b3c99411ef5c.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2276
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2276 -s 328
        3⤵
        • Program crash
        PID:388
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2276 -ip 2276
    1⤵
      PID:660

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1772-2-0x0000000004A00000-0x0000000004A0A000-memory.dmp

      Filesize

      40KB

      Download

    • memory/1772-1-0x0000000002FF0000-0x00000000030F0000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/2276-4-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

      Download

    • memory/2276-3-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

      Download

    • memory/2276-8-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

      Download

    • memory/3452-5-0x0000000002580000-0x0000000002596000-memory.dmp

      Filesize

      88KB

      Download