Resubmissions

11-01-2023 13:54

230111-q71fqsdb89 10

27-08-2020 15:49

200827-v6tcrvw9es 10

Analysis

  • max time kernel
    3s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    27-08-2020 15:49

General

  • Target

    smoke.exe

  • Size

    329KB

  • MD5

    5fc6f24d43bc7ca45a81d159291955d1

  • SHA1

    72fc3ce96bd9406215cec015d70bbb67318f1e23

  • SHA256

    fc20b03299b8ae91e72e104ee4f18e40125b2b061f1509d1c5b3f9fac3104934

  • SHA512

    b39488cfaec3bbe93fc4b22f92edfc3b2b729e6f75a472d722418b259fc9c74faae60f5126384dc242ba1b42300e60428c7c530982550625cd59e1684f7c9380

Malware Config

Extracted

Family

smokeloader

Version

2019

C2

http://protest-01242505.tk/

http://test-service012505.ru.com/

http://test-service012505.pw/

http://test-service012505.com/

http://test-service012505.site/

http://test-service012505.store/

http://test-service01242505.ru/

http://mytest-service012505.ru/

http://test-service012505.su/

http://test-service012505.info/

http://test-service012505.net/

http://test-service012505.tech/

http://test-service012505.online/

http://rutest-service012505.ru/

http://test-service01dom2505.ru/

http://test-service012505.website/

http://test-service012505.xyz/

http://test-service01pro2505.ru/

http://test-service01rus2505.ru/

http://test-service012505.eu/

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\smoke.exe
    "C:\Users\Admin\AppData\Local\Temp\smoke.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1324
    • C:\Users\Admin\AppData\Local\Temp\smoke.exe
      "C:\Users\Admin\AppData\Local\Temp\smoke.exe"
      2⤵
      • Loads dropped DLL
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:1096

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1096-1-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1096-4-0x0000000000410000-0x0000000000427000-memory.dmp

    Filesize

    92KB

  • memory/1096-5-0x0000000000360000-0x0000000000361000-memory.dmp

    Filesize

    4KB

  • memory/1324-0-0x00000000002AC000-0x00000000002C1000-memory.dmp

    Filesize

    84KB