Analysis

  • max time kernel
    140s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    22-04-2024 16:53

General

  • Target

    fc20b03299b8ae91e72e104ee4f18e40125b2b061f1509d1c5b3f9fac3104934.exe

  • Size

    329KB

  • MD5

    5fc6f24d43bc7ca45a81d159291955d1

  • SHA1

    72fc3ce96bd9406215cec015d70bbb67318f1e23

  • SHA256

    fc20b03299b8ae91e72e104ee4f18e40125b2b061f1509d1c5b3f9fac3104934

  • SHA512

    b39488cfaec3bbe93fc4b22f92edfc3b2b729e6f75a472d722418b259fc9c74faae60f5126384dc242ba1b42300e60428c7c530982550625cd59e1684f7c9380

  • SSDEEP

    6144:8OZsdXcUIAoUKjiXeZtna8UtDpiyeMTHSN+5qm:8OZQXcDkLuTa8UtteCHP

Malware Config

Extracted

Family

smokeloader

Botnet

1106

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\fc20b03299b8ae91e72e104ee4f18e40125b2b061f1509d1c5b3f9fac3104934.exe
    "C:\Users\Admin\AppData\Local\Temp\fc20b03299b8ae91e72e104ee4f18e40125b2b061f1509d1c5b3f9fac3104934.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Users\Admin\AppData\Local\Temp\fc20b03299b8ae91e72e104ee4f18e40125b2b061f1509d1c5b3f9fac3104934.exe
      "C:\Users\Admin\AppData\Local\Temp\fc20b03299b8ae91e72e104ee4f18e40125b2b061f1509d1c5b3f9fac3104934.exe"
      2⤵
      • Loads dropped DLL
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2656
  • C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe"
    1⤵
      PID:2492

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Users\Admin\AppData\Local\Temp\4DD3.tmp

      Filesize

      1.2MB

      MD5

      d124f55b9393c976963407dff51ffa79

      SHA1

      2c7bbedd79791bfb866898c85b504186db610b5d

      SHA256

      ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

      SHA512

      278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

    • memory/1204-10-0x0000000002D70000-0x0000000002D71000-memory.dmp

      Filesize

      4KB

    • memory/1204-11-0x0000000002D50000-0x0000000002D67000-memory.dmp

      Filesize

      92KB

    • memory/1204-14-0x0000000002D70000-0x0000000002D71000-memory.dmp

      Filesize

      4KB

    • memory/1204-15-0x0000000002D50000-0x0000000002D67000-memory.dmp

      Filesize

      92KB

    • memory/2024-1-0x0000000000500000-0x0000000000600000-memory.dmp

      Filesize

      1024KB

    • memory/2656-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2656-4-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/2656-5-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/2656-7-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/2656-12-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB