Overview

overview

10

Static

static

3

cd87ab1ec4...a3.exe

windows7-x64

10

cd87ab1ec4...a3.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/03/2024, 08:00

Sharing

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General

  • Target

    cd87ab1ec4c93f1ef50d624c1944e2a3.exe

  • Size

    140KB

  • MD5

    cd87ab1ec4c93f1ef50d624c1944e2a3

  • SHA1

    ab3ecbd441af8aa95320300ce4bfdcf07d8da7b5

  • SHA256

    a41da84a70aac4a8274ad4276cc9cb8ac79604103fd3a53455653a9439887162

  • SHA512

    327ed4f155d591c5c9adbc5d25b30f729f15fa89d91693bfa1a4b4266288b97ae7d6b549e10f02dd636c3db9947fecba5de9f09b279f8a7fde3ce9532a4da734

  • SSDEEP

    3072:T6ElP1oRL7QwDIJgSKrDudh5h+GHVxsI5/DuT61m:hAPQwDiMmsI5/

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 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\cd87ab1ec4c93f1ef50d624c1944e2a3.exe
    "C:\Users\Admin\AppData\Local\Temp\cd87ab1ec4c93f1ef50d624c1944e2a3.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1180
    • C:\Users\Admin\AppData\Local\Temp\cd87ab1ec4c93f1ef50d624c1944e2a3.exe
      "C:\Users\Admin\AppData\Local\Temp\cd87ab1ec4c93f1ef50d624c1944e2a3.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:3212
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3212 -s 328
        3⤵
        • Program crash
        PID:212
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 3212 -ip 3212
    1⤵
      PID:208

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • memory/1180-1-0x0000000002080000-0x0000000002180000-memory.dmp

            Filesize

            1024KB

            Download

          • memory/1180-2-0x0000000002010000-0x000000000201A000-memory.dmp

            Filesize

            40KB

            Download

          • memory/3212-3-0x0000000000400000-0x0000000000409000-memory.dmp

            Filesize

            36KB

            Download

          • memory/3212-4-0x0000000000400000-0x0000000000409000-memory.dmp

            Filesize

            36KB

            Download

          • memory/3212-8-0x0000000000400000-0x0000000000409000-memory.dmp

            Filesize

            36KB

            Download

          • memory/3528-5-0x0000000001130000-0x0000000001146000-memory.dmp

            Filesize

            88KB

            Download