Analysis

  • max time kernel
    150s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    07-12-2023 02:42

General

  • Target

    f81037799acf75dae40624a0b68c7e694f6f8b76eb1629f844dda9ae7d5da96b.exe

  • Size

    278KB

  • MD5

    27e492b391da6e407bef6dc07abd745f

  • SHA1

    6f2e8650a6d1a6369f55fd810b2e173427a4acdf

  • SHA256

    f81037799acf75dae40624a0b68c7e694f6f8b76eb1629f844dda9ae7d5da96b

  • SHA512

    8a4c97ce2015be0767b712ec9e4df3d5dc65e213b0f85028dd6e1c536a96cb5bf5ee80c313b02825228559de0a47381fb68ee9db239e094c11bde396949709a7

  • SSDEEP

    3072:s9uV33v8Km+ghoeuTUZb+yl7xOJKXgmkcmNcD55WLLV7Vdb9r6+:n3v8Km+6WGbhaKpkXNcCJDh

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: MapViewOfSection 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f81037799acf75dae40624a0b68c7e694f6f8b76eb1629f844dda9ae7d5da96b.exe
    "C:\Users\Admin\AppData\Local\Temp\f81037799acf75dae40624a0b68c7e694f6f8b76eb1629f844dda9ae7d5da96b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2440
    • C:\Users\Admin\AppData\Local\Temp\f81037799acf75dae40624a0b68c7e694f6f8b76eb1629f844dda9ae7d5da96b.exe
      "C:\Users\Admin\AppData\Local\Temp\f81037799acf75dae40624a0b68c7e694f6f8b76eb1629f844dda9ae7d5da96b.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2104

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1184-7-0x0000000002AF0000-0x0000000002B06000-memory.dmp

    Filesize

    88KB

  • memory/2104-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2104-5-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2104-6-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2104-8-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2440-1-0x0000000000970000-0x0000000000A70000-memory.dmp

    Filesize

    1024KB

  • memory/2440-3-0x0000000000230000-0x0000000000239000-memory.dmp

    Filesize

    36KB