Resubmissions

18-11-2020 14:18

201118-dj27sn3f52 10

18-11-2020 13:42

201118-1arz86e7w6 10

18-11-2020 13:38

201118-n8jh228ctn 10

Analysis

  • max time kernel
    317s
  • max time network
    389s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    18-11-2020 13:42

General

  • Target

    2019-09-02_22-41-10.bin.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.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\2019-09-02_22-41-10.bin.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3888
    • C:\Users\Admin\AppData\Local\Temp\2019-09-02_22-41-10.bin.exe
      "C:\Users\Admin\AppData\Local\Temp\2019-09-02_22-41-10.bin.exe"
      2⤵
      • Loads dropped DLL
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:1556

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/1556-2-0x0000000000400000-0x000000000040A000-memory.dmp
    Filesize

    40KB

  • memory/1556-3-0x0000000000402CED-mapping.dmp
  • memory/1556-5-0x0000000000540000-0x0000000000556000-memory.dmp
    Filesize

    88KB

  • memory/2092-7-0x0000000000F20000-0x0000000000F21000-memory.dmp
    Filesize

    4KB

  • memory/3888-0-0x0000000000B86000-0x0000000000B98000-memory.dmp
    Filesize

    72KB

  • memory/3888-1-0x0000000001030000-0x0000000001031000-memory.dmp
    Filesize

    4KB