Analysis

  • max time kernel
    152s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    14-05-2022 13:50

General

  • Target

    787cd70763bab5a14d9ecc58abe2dc0ed844b5251266cb3ccd8d6e97b3042823.exe

  • Size

    247KB

  • MD5

    f34ad3cb33b7e41126e45906e4ddf6f4

  • SHA1

    a86d709c56ee2f5b42b16a99a6c6ee6b5edfb5f3

  • SHA256

    787cd70763bab5a14d9ecc58abe2dc0ed844b5251266cb3ccd8d6e97b3042823

  • SHA512

    54610c0d429dad91a3a5fdfd1c03b889999785a48e9e096345bbe709520e518d881cfd0071b9325ec4628db542e62046d7a6ae1b2c81d9754cd20f73250ef37b

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://host-data-coin-11.com/

http://file-coin-host-12.com/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • 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: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\787cd70763bab5a14d9ecc58abe2dc0ed844b5251266cb3ccd8d6e97b3042823.exe
    "C:\Users\Admin\AppData\Local\Temp\787cd70763bab5a14d9ecc58abe2dc0ed844b5251266cb3ccd8d6e97b3042823.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1996
    • C:\Users\Admin\AppData\Local\Temp\787cd70763bab5a14d9ecc58abe2dc0ed844b5251266cb3ccd8d6e97b3042823.exe
      "C:\Users\Admin\AppData\Local\Temp\787cd70763bab5a14d9ecc58abe2dc0ed844b5251266cb3ccd8d6e97b3042823.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:4428

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1996-130-0x00000000004F2000-0x0000000000502000-memory.dmp

    Filesize

    64KB

  • memory/1996-133-0x00000000001F0000-0x00000000001F9000-memory.dmp

    Filesize

    36KB

  • memory/3168-135-0x0000000001250000-0x0000000001266000-memory.dmp

    Filesize

    88KB

  • memory/4428-131-0x0000000000000000-mapping.dmp

  • memory/4428-132-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/4428-134-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB