Analysis

  • max time kernel
    159s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-10-2023 17:45

General

  • Target

    NEAS.NEASNEASa72b3a1db5c5a694be012c7503478eaf8364ec73c8238ed4c432a342ff61ef19exeexeexe_JC.exe

  • Size

    261KB

  • MD5

    ca8b76171510d3e415fb2bc56e2187b1

  • SHA1

    5141363dc1c446f716d71e8429eb64e031d18a04

  • SHA256

    a72b3a1db5c5a694be012c7503478eaf8364ec73c8238ed4c432a342ff61ef19

  • SHA512

    85f7c09394b1f96e815dcd83edba0da8af6e6dd859b0519de5e90db542ace194263e008d8825a241090cc9b2862e16a5ae10371c9ff2c1c7d5093165efb13aa1

  • SSDEEP

    3072:QakB+82flNMbsmcBKIdpFPSa4RkNdAk1sfRuh2xl8IBp5MP3oo6TOa:SWfEYmEKIdpFKTR8dH1ocs8tP4o6TO

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.

  • 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 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.NEASNEASa72b3a1db5c5a694be012c7503478eaf8364ec73c8238ed4c432a342ff61ef19exeexeexe_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.NEASNEASa72b3a1db5c5a694be012c7503478eaf8364ec73c8238ed4c432a342ff61ef19exeexeexe_JC.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1748
    • C:\Users\Admin\AppData\Local\Temp\NEAS.NEASNEASa72b3a1db5c5a694be012c7503478eaf8364ec73c8238ed4c432a342ff61ef19exeexeexe_JC.exe
      "C:\Users\Admin\AppData\Local\Temp\NEAS.NEASNEASa72b3a1db5c5a694be012c7503478eaf8364ec73c8238ed4c432a342ff61ef19exeexeexe_JC.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:3732

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1748-0-0x00000000005F0000-0x0000000000605000-memory.dmp

    Filesize

    84KB

  • memory/1748-1-0x0000000000610000-0x0000000000619000-memory.dmp

    Filesize

    36KB

  • memory/1748-4-0x00000000005F0000-0x0000000000605000-memory.dmp

    Filesize

    84KB

  • memory/3188-5-0x0000000002C00000-0x0000000002C16000-memory.dmp

    Filesize

    88KB

  • memory/3732-2-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/3732-3-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/3732-6-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB