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Analysis

  • max time kernel
    300s
  • max time network
    183s
  • platform
    windows10-1703_x64
  • resource
    win10-20231020-en
  • resource tags

    arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system
  • submitted
    22/10/2023, 22:25

General

  • Target

    c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe

  • Size

    180KB

  • MD5

    f4e75c531a041e9c7de6fd603b6b20cf

  • SHA1

    3c133d66d030c1714e9dda13ccaf115e0f3b11a0

  • SHA256

    c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234

  • SHA512

    984bb16cdf21f639da65266415d38d1640c0a60445842c58e06a23fff67dc7e12a6c146d717802a221123c0745887e414331317696ef0771ae7775134dd4ada1

  • SSDEEP

    3072:vyBN6fxr6AgsSrXxq2phoPEFpbZYXdsLIKFyQX:+A+Ag/rX82pCPIadDK

Malware Config

Extracted

Family

smokeloader

Botnet

up3

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
  • Suspicious use of SetThreadContext 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 44 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe
    "C:\Users\Admin\AppData\Local\Temp\c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:5032
    • C:\Users\Admin\AppData\Local\Temp\c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe
      "C:\Users\Admin\AppData\Local\Temp\c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:4824
  • C:\Users\Admin\AppData\Roaming\beuhwaa
    C:\Users\Admin\AppData\Roaming\beuhwaa
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2924
    • C:\Users\Admin\AppData\Roaming\beuhwaa
      C:\Users\Admin\AppData\Roaming\beuhwaa
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:3108

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    180KB

    MD5

    f4e75c531a041e9c7de6fd603b6b20cf

    SHA1

    3c133d66d030c1714e9dda13ccaf115e0f3b11a0

    SHA256

    c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234

    SHA512

    984bb16cdf21f639da65266415d38d1640c0a60445842c58e06a23fff67dc7e12a6c146d717802a221123c0745887e414331317696ef0771ae7775134dd4ada1

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

    Filesize

    180KB

    MD5

    f4e75c531a041e9c7de6fd603b6b20cf

    SHA1

    3c133d66d030c1714e9dda13ccaf115e0f3b11a0

    SHA256

    c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234

    SHA512

    984bb16cdf21f639da65266415d38d1640c0a60445842c58e06a23fff67dc7e12a6c146d717802a221123c0745887e414331317696ef0771ae7775134dd4ada1

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

    Filesize

    180KB

    MD5

    f4e75c531a041e9c7de6fd603b6b20cf

    SHA1

    3c133d66d030c1714e9dda13ccaf115e0f3b11a0

    SHA256

    c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234

    SHA512

    984bb16cdf21f639da65266415d38d1640c0a60445842c58e06a23fff67dc7e12a6c146d717802a221123c0745887e414331317696ef0771ae7775134dd4ada1

  • memory/3232-93-0x00000000015C0000-0x00000000015D0000-memory.dmp

    Filesize

    64KB

  • memory/3232-153-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-21-0x0000000001600000-0x0000000001610000-memory.dmp

    Filesize

    64KB

  • memory/3232-24-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-23-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-26-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-27-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-28-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-30-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-32-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-33-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-35-0x0000000001620000-0x0000000001630000-memory.dmp

    Filesize

    64KB

  • memory/3232-37-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-38-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-41-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-39-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-43-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-45-0x0000000001600000-0x0000000001610000-memory.dmp

    Filesize

    64KB

  • memory/3232-44-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-47-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-48-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-50-0x0000000001620000-0x0000000001630000-memory.dmp

    Filesize

    64KB

  • memory/3232-54-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-53-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-52-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-56-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-58-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-59-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-60-0x0000000001550000-0x0000000001560000-memory.dmp

    Filesize

    64KB

  • memory/3232-62-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-61-0x0000000001550000-0x0000000001560000-memory.dmp

    Filesize

    64KB

  • memory/3232-63-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-64-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-67-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-66-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-65-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-68-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-70-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-73-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-72-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-75-0x00000000015C0000-0x00000000015D0000-memory.dmp

    Filesize

    64KB

  • memory/3232-97-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-79-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-80-0x00000000015C0000-0x00000000015D0000-memory.dmp

    Filesize

    64KB

  • memory/3232-82-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-84-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-83-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-88-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-86-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-91-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-90-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-5-0x0000000001530000-0x0000000001546000-memory.dmp

    Filesize

    88KB

  • memory/3232-20-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-95-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-77-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-99-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-100-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-101-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-102-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-103-0x0000000001550000-0x0000000001560000-memory.dmp

    Filesize

    64KB

  • memory/3232-104-0x0000000001550000-0x0000000001560000-memory.dmp

    Filesize

    64KB

  • memory/3232-105-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-107-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-108-0x00000000013A0000-0x00000000013B0000-memory.dmp

    Filesize

    64KB

  • memory/3232-111-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-110-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-112-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-113-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-114-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-116-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-118-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-119-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-121-0x00000000013A0000-0x00000000013B0000-memory.dmp

    Filesize

    64KB

  • memory/3232-123-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-125-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-126-0x00000000013A0000-0x00000000013B0000-memory.dmp

    Filesize

    64KB

  • memory/3232-128-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-130-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-132-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-134-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-136-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-137-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-139-0x00000000013A0000-0x00000000013B0000-memory.dmp

    Filesize

    64KB

  • memory/3232-141-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-142-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-143-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-144-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-145-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-147-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-146-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-148-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-149-0x0000000001550000-0x0000000001560000-memory.dmp

    Filesize

    64KB

  • memory/3232-151-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-98-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-155-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-157-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-158-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-18-0x00000000015F0000-0x0000000001600000-memory.dmp

    Filesize

    64KB

  • memory/3232-16-0x0000000001550000-0x0000000001560000-memory.dmp

    Filesize

    64KB

  • memory/3232-15-0x0000000001550000-0x0000000001560000-memory.dmp

    Filesize

    64KB

  • memory/4824-3-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/4824-4-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/4824-6-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/5032-1-0x00000000009D0000-0x0000000000AD0000-memory.dmp

    Filesize

    1024KB

  • memory/5032-2-0x00000000008B0000-0x00000000008B9000-memory.dmp

    Filesize

    36KB