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Overview

overview

10

Static

static

3

b7e27567f2...34.exe

windows7-x64

10

b7e27567f2...34.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/03/2024, 16:43

Sharing

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General

  • Target

    b7e27567f201a840d0f9c12cf0a2d734.exe

  • Size

    264KB

  • MD5

    b7e27567f201a840d0f9c12cf0a2d734

  • SHA1

    1bc2fd9116bffab627b0ea37ff0bb7c49726b9a5

  • SHA256

    eedbfa19e0dea5bf1cb8ddd108ecc4ddc8a67481fafa759e588da3125228992e

  • SHA512

    30b0f5c7297e83c0ebeef938eea9edc18cc7149d1aef6a1eaa16c83d0f03167bd9fe8bb3a1f21a614af81c589e82a505a3f9d4e98934c7d452bec95eab205aac

  • SSDEEP

    6144:MuT4E4r0VSSzM/pGewA8JSc1G3PKArAdld/6Vl/J5FA:H4rESSzMvwAiSWmPYP16Vl/x

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\b7e27567f201a840d0f9c12cf0a2d734.exe
    "C:\Users\Admin\AppData\Local\Temp\b7e27567f201a840d0f9c12cf0a2d734.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3532
    • C:\Users\Admin\AppData\Local\Temp\b7e27567f201a840d0f9c12cf0a2d734.exe
      "C:\Users\Admin\AppData\Local\Temp\b7e27567f201a840d0f9c12cf0a2d734.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2488
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 328
        3⤵
        • Program crash
        PID:3604
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2488 -ip 2488
    1⤵
      PID:3792

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2488-3-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

      Download

    • memory/2488-4-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

      Download

    • memory/2488-8-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

      Download

    • memory/3368-5-0x0000000002EA0000-0x0000000002EB6000-memory.dmp

      Filesize

      88KB

      Download

    • memory/3532-2-0x00000000001C0000-0x00000000001CA000-memory.dmp

      Filesize

      40KB

      Download

    • memory/3532-1-0x00000000025B0000-0x00000000026B0000-memory.dmp

      Filesize

      1024KB

      Download