Analysis

  • max time kernel
    156s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/01/2024, 23:36

General

  • Target

    75cde21e312b2027780644fff8bd18f0.exe

  • Size

    164KB

  • MD5

    75cde21e312b2027780644fff8bd18f0

  • SHA1

    fe17a4a5728041af5bd9c0cb6dc634ea443ebc8d

  • SHA256

    e36ea88c9197fd42bd890b24de532afca1debe4d7a9867afcc83b04f09db6860

  • SHA512

    235d571d73a5171bad022afd2f5af3d65c03d6f7db873703a34f3373a21e7f6f3719e7f94ea804242a892fdeaddfd4a78279b4c9c198a4fee7adf3e2b6f8ef5f

  • SSDEEP

    3072:mbCmsbFfEXfrFELTMYgUENwRdixdtpVsPH:cqRC2LjKwrixYf

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2020

C2

http://x-100new.com/upload/

http://goo0g2.xyz/upload/

http://j-20.best/upload/

http://japan-semui.xyz/upload/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Loads dropped DLL 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 UnmapMainImage 1 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\75cde21e312b2027780644fff8bd18f0.exe
    "C:\Users\Admin\AppData\Local\Temp\75cde21e312b2027780644fff8bd18f0.exe"
    1⤵
    • Loads dropped DLL
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:1976

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\CC4F.tmp

          Filesize

          1.6MB

          MD5

          4f3387277ccbd6d1f21ac5c07fe4ca68

          SHA1

          e16506f662dc92023bf82def1d621497c8ab5890

          SHA256

          767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

          SHA512

          9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

        • memory/1976-1-0x0000000000DF0000-0x0000000000EF0000-memory.dmp

          Filesize

          1024KB

        • memory/1976-2-0x00000000001C0000-0x00000000001CA000-memory.dmp

          Filesize

          40KB

        • memory/1976-3-0x0000000000400000-0x0000000000C48000-memory.dmp

          Filesize

          8.3MB

        • memory/1976-10-0x0000000000400000-0x0000000000C48000-memory.dmp

          Filesize

          8.3MB

        • memory/1976-13-0x00000000001C0000-0x00000000001CA000-memory.dmp

          Filesize

          40KB

        • memory/3524-9-0x0000000003440000-0x0000000003456000-memory.dmp

          Filesize

          88KB