Analysis

  • max time kernel
    300s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    21/08/2023, 03:45

General

  • Target

    931d05ea59f0f22fedce87afe0e53b7c81e72d4375d8273f78199509eb47872a.exe

  • Size

    216KB

  • MD5

    30d35fdeffca7c09516a4dc81b28bd2a

  • SHA1

    f9214fed0e0ff84289418fb1df55f2ccdd7b3373

  • SHA256

    931d05ea59f0f22fedce87afe0e53b7c81e72d4375d8273f78199509eb47872a

  • SHA512

    770fcd37fa937dcadc93808fb4419591941b68e5097e044fb207a8da9822ad3cc534c680998b625d3ce3166b9edb6890d16d966dcf20fb299ab371889a7e0370

  • SSDEEP

    3072:4DaaPugLWW94WKnIzjjpeM8PIiKRydNtjr+Ac:zgLv4tIHjpeM8uEjr+

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\931d05ea59f0f22fedce87afe0e53b7c81e72d4375d8273f78199509eb47872a.exe
    "C:\Users\Admin\AppData\Local\Temp\931d05ea59f0f22fedce87afe0e53b7c81e72d4375d8273f78199509eb47872a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1524
    • C:\Users\Admin\AppData\Local\Temp\931d05ea59f0f22fedce87afe0e53b7c81e72d4375d8273f78199509eb47872a.exe
      "C:\Users\Admin\AppData\Local\Temp\931d05ea59f0f22fedce87afe0e53b7c81e72d4375d8273f78199509eb47872a.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2012
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {0DB16CDD-5149-44F0-8F3E-CCF0A2850D7C} S-1-5-21-2969888527-3102471180-2307688834-1000:YKQDESCX\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2836
    • C:\Users\Admin\AppData\Roaming\sfftjcw
      C:\Users\Admin\AppData\Roaming\sfftjcw
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2344
      • C:\Users\Admin\AppData\Roaming\sfftjcw
        C:\Users\Admin\AppData\Roaming\sfftjcw
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: MapViewOfSection
        PID:2160

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\sfftjcw

    Filesize

    216KB

    MD5

    30d35fdeffca7c09516a4dc81b28bd2a

    SHA1

    f9214fed0e0ff84289418fb1df55f2ccdd7b3373

    SHA256

    931d05ea59f0f22fedce87afe0e53b7c81e72d4375d8273f78199509eb47872a

    SHA512

    770fcd37fa937dcadc93808fb4419591941b68e5097e044fb207a8da9822ad3cc534c680998b625d3ce3166b9edb6890d16d966dcf20fb299ab371889a7e0370

  • C:\Users\Admin\AppData\Roaming\sfftjcw

    Filesize

    216KB

    MD5

    30d35fdeffca7c09516a4dc81b28bd2a

    SHA1

    f9214fed0e0ff84289418fb1df55f2ccdd7b3373

    SHA256

    931d05ea59f0f22fedce87afe0e53b7c81e72d4375d8273f78199509eb47872a

    SHA512

    770fcd37fa937dcadc93808fb4419591941b68e5097e044fb207a8da9822ad3cc534c680998b625d3ce3166b9edb6890d16d966dcf20fb299ab371889a7e0370

  • C:\Users\Admin\AppData\Roaming\sfftjcw

    Filesize

    216KB

    MD5

    30d35fdeffca7c09516a4dc81b28bd2a

    SHA1

    f9214fed0e0ff84289418fb1df55f2ccdd7b3373

    SHA256

    931d05ea59f0f22fedce87afe0e53b7c81e72d4375d8273f78199509eb47872a

    SHA512

    770fcd37fa937dcadc93808fb4419591941b68e5097e044fb207a8da9822ad3cc534c680998b625d3ce3166b9edb6890d16d966dcf20fb299ab371889a7e0370

  • \Users\Admin\AppData\Roaming\sfftjcw

    Filesize

    216KB

    MD5

    30d35fdeffca7c09516a4dc81b28bd2a

    SHA1

    f9214fed0e0ff84289418fb1df55f2ccdd7b3373

    SHA256

    931d05ea59f0f22fedce87afe0e53b7c81e72d4375d8273f78199509eb47872a

    SHA512

    770fcd37fa937dcadc93808fb4419591941b68e5097e044fb207a8da9822ad3cc534c680998b625d3ce3166b9edb6890d16d966dcf20fb299ab371889a7e0370

  • memory/1268-60-0x0000000002B60000-0x0000000002B76000-memory.dmp

    Filesize

    88KB

  • memory/1268-76-0x0000000002C00000-0x0000000002C16000-memory.dmp

    Filesize

    88KB

  • memory/1524-53-0x0000000000230000-0x0000000000245000-memory.dmp

    Filesize

    84KB

  • memory/1524-58-0x0000000000230000-0x0000000000245000-memory.dmp

    Filesize

    84KB

  • memory/1524-55-0x0000000000250000-0x0000000000259000-memory.dmp

    Filesize

    36KB

  • memory/2012-59-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2012-61-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2012-57-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2012-54-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2160-75-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2160-77-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB