Analysis

  • max time kernel
    166s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    26-01-2022 09:41

General

  • Target

    2e91c1e098c8f5d4d9709d07885a8369.exe

  • Size

    333KB

  • MD5

    2e91c1e098c8f5d4d9709d07885a8369

  • SHA1

    be20caa1dc570e071dacb67396c7ddb5eb288a4d

  • SHA256

    d2575826949eabb6051a8ad22c804494f0351688b444ae9e0c95905942a3c0e3

  • SHA512

    5e24550d5fc80aa0f4188f04823fc08ec68a441beec09f4c194872b5fb6f9e0001a3365504bf6d32705847ad5f6f8f15cda72490742810dcb8c89b53e49c848f

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.

  • Deletes itself 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: 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\2e91c1e098c8f5d4d9709d07885a8369.exe
    "C:\Users\Admin\AppData\Local\Temp\2e91c1e098c8f5d4d9709d07885a8369.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3724
    • C:\Users\Admin\AppData\Local\Temp\2e91c1e098c8f5d4d9709d07885a8369.exe
      "C:\Users\Admin\AppData\Local\Temp\2e91c1e098c8f5d4d9709d07885a8369.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:4204

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1876-122-0x00000000013F0000-0x0000000001406000-memory.dmp

    Filesize

    88KB

  • memory/3724-120-0x00000000005D0000-0x00000000005D9000-memory.dmp

    Filesize

    36KB

  • memory/4204-119-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/4204-121-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB