Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    04-03-2021 18:19

General

  • Target

    dab5cb3a_extracted.exe

  • Size

    13KB

  • MD5

    d32944081c256e418c96f098cf3ba2a1

  • SHA1

    1b9ca30b52daefe9a289ca2fdf4ec6eeca4c4053

  • SHA256

    1f617db02129529020fcb97ddceab04c9234ba4339f1d27e24679e0ea708aa2d

  • SHA512

    9b37fd264633116e1f9dfd665d58c7fe218c5bcd68ecbd6604ccaaef206ef2b3b0b84b4aee7f66c2b9b8f6c18899aeda627798f244fee2922025c3b72ef1243a

Malware Config

Extracted

Family

smokeloader

Version

2017

C2

http://dogewareservice.ru/

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dab5cb3a_extracted.exe
    "C:\Users\Admin\AppData\Local\Temp\dab5cb3a_extracted.exe"
    1⤵
    • Maps connected drives based on registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:292
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 292 -s 260
      2⤵
      • Program crash
      PID:2024
    • C:\Windows\SysWOW64\explorer.exe
      explorer.exe
      2⤵
      • Deletes itself
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      PID:1436

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/292-2-0x0000000076861000-0x0000000076863000-memory.dmp
    Filesize

    8KB

  • memory/292-4-0x0000000000030000-0x000000000003A000-memory.dmp
    Filesize

    40KB

  • memory/1436-5-0x0000000000000000-mapping.dmp
  • memory/1436-7-0x0000000075461000-0x0000000075463000-memory.dmp
    Filesize

    8KB

  • memory/1436-8-0x0000000000E80000-0x0000000001101000-memory.dmp
    Filesize

    2.5MB

  • memory/1436-9-0x00000000000C0000-0x00000000000CA000-memory.dmp
    Filesize

    40KB

  • memory/2024-3-0x0000000000000000-mapping.dmp