Analysis

  • max time kernel
    8s
  • max time network
    9s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    18-11-2020 16:58

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 7 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:648
    • 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:2020

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\D47F.tmp
  • memory/648-0-0x00000000009BE000-0x00000000009D0000-memory.dmp
    Filesize

    72KB

  • memory/648-1-0x0000000000AA0000-0x0000000000AB1000-memory.dmp
    Filesize

    68KB

  • memory/1252-7-0x0000000002A20000-0x0000000002A21000-memory.dmp
    Filesize

    4KB

  • memory/2020-2-0x0000000000400000-0x000000000040A000-memory.dmp
    Filesize

    40KB

  • memory/2020-3-0x0000000000402CED-mapping.dmp
  • memory/2020-5-0x0000000000250000-0x0000000000266000-memory.dmp
    Filesize

    88KB