Analysis

  • max time kernel
    258s
  • max time network
    256s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    18-11-2020 15:58

General

  • Target

    2019-09-02_22-41-10.exe

Malware Config

Extracted

Family

smokeloader

Version

2019

C2

http://advertserv25.world/logstatx77/

http://mailstatm74.club/logstatx77/

http://kxservx7zx.club/logstatx77/

http://dsmail977sx.xyz/logstatx77/

http://fdmail709.club/logstatx77/

http://servicestar751.club/logstatx77/

http://staradvert9075.club/logstatx77/

http://staradvert1883.club/logstatx77/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Loads dropped DLL 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: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2019-09-02_22-41-10.exe
    "C:\Users\Admin\AppData\Local\Temp\2019-09-02_22-41-10.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:744
    • C:\Users\Admin\AppData\Local\Temp\2019-09-02_22-41-10.exe
      "C:\Users\Admin\AppData\Local\Temp\2019-09-02_22-41-10.exe"
      2⤵
      • Loads dropped DLL
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:1960

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\D47F.tmp

  • memory/744-0-0x0000000000AF6000-0x0000000000B08000-memory.dmp

    Filesize

    72KB

  • memory/744-1-0x0000000000EB0000-0x0000000000EB1000-memory.dmp

    Filesize

    4KB

  • memory/1960-2-0x0000000000400000-0x000000000040A000-memory.dmp

    Filesize

    40KB

  • memory/1960-3-0x0000000000402CED-mapping.dmp

  • memory/1960-5-0x00000000004D0000-0x00000000004E6000-memory.dmp

    Filesize

    88KB

  • memory/2092-6-0x0000000000F40000-0x0000000000F41000-memory.dmp

    Filesize

    4KB