Analysis

  • max time kernel
    317s
  • max time network
    384s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    20-11-2020 14:34

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"
    Suspicious use of SetThreadContext
    Suspicious use of WriteProcessMemory
    PID:3108
    • 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"
      Loads dropped DLL
      Checks SCSI registry key(s)
      Suspicious behavior: MapViewOfSection
      PID:1188

Network

MITRE ATT&CK Matrix

Collection

    Command and Control

      Credential Access

        Defense Evasion

          Execution

            Exfiltration

              Impact

                Initial Access

                  Lateral Movement

                    Persistence

                      Privilege Escalation

                        Replay Monitor

                        00:00 00:00

                        Downloads

                        • \Users\Admin\AppData\Local\Temp\D47F.tmp
                        • memory/1188-2-0x0000000000400000-0x000000000040A000-memory.dmp
                        • memory/1188-3-0x0000000000402CED-mapping.dmp
                        • memory/1188-5-0x00000000004C0000-0x00000000004D6000-memory.dmp
                        • memory/2756-6-0x0000000000D10000-0x0000000000D11000-memory.dmp
                        • memory/3108-0-0x0000000000C75000-0x0000000000C87000-memory.dmp
                        • memory/3108-1-0x0000000000F40000-0x0000000000F41000-memory.dmp