Analysis

  • max time kernel
    173s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    13-10-2023 21:33

General

  • Target

    2f4140d42063d60f416435b8cc1493588293c7516e25aad65fc6929125b4c7dd.exe

  • Size

    268KB

  • MD5

    d20f88b50c4b3b1083499e32d674fb58

  • SHA1

    d41276d90a406273cc748c0dcf648fb2bb965296

  • SHA256

    2f4140d42063d60f416435b8cc1493588293c7516e25aad65fc6929125b4c7dd

  • SHA512

    9275c9dc0336a808cde2f776254ac35f9bdab52ace7486dbe7d8427fefcfa6117cfa030c2d2f302bb6ff60f92b9eacfca11deaa2203083857674bcca2a3f4028

  • SSDEEP

    3072:OnEwxB2mXQ+YJq4I7MqGnohhiEaYpMA7Et4Y+rpuJTY4VBUqsZTwNA:JwxVXQ+Yo4EM6hIY2AE4Y+luZTnjOt

Malware Config

Extracted

Family

smokeloader

Botnet

up3

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 7 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\2f4140d42063d60f416435b8cc1493588293c7516e25aad65fc6929125b4c7dd.exe
    "C:\Users\Admin\AppData\Local\Temp\2f4140d42063d60f416435b8cc1493588293c7516e25aad65fc6929125b4c7dd.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2692
    • C:\Users\Admin\AppData\Local\Temp\2f4140d42063d60f416435b8cc1493588293c7516e25aad65fc6929125b4c7dd.exe
      "C:\Users\Admin\AppData\Local\Temp\2f4140d42063d60f416435b8cc1493588293c7516e25aad65fc6929125b4c7dd.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2100

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1308-8-0x00000000029B0000-0x00000000029C6000-memory.dmp

    Filesize

    88KB

  • memory/2100-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2100-5-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2100-6-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2100-7-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2100-9-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2692-1-0x0000000000B80000-0x0000000000C80000-memory.dmp

    Filesize

    1024KB

  • memory/2692-2-0x0000000000220000-0x0000000000229000-memory.dmp

    Filesize

    36KB