Overview

overview

10

Static

static

1

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-03-2023 21:38

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General

  • Target

    file.exe

  • Size

    264KB

  • MD5

    603e1c4b337563620dd3b0873efd2242

  • SHA1

    f334f318213431b357aa7fab4a869f0d300ac079

  • SHA256

    0efe59a8f13a80ac3ee5c71b2282972bd42d9e609afbff88d9bf8b9092743bd7

  • SHA512

    e2791bd7c7476ecdad9d123274abf55bae7b88fb099fc7b6f438f6abfca415ed77719d908b748341034be7f74da789943e6906513ae96493d460301cb4099d4d

  • SSDEEP

    3072:E3zCCRHyE0rYUXLHYLZ3zG9G6xHtPnBvsM+xUDzFQz1LlL5kYYCU3wsUf:EDz5yERUXL4Yzf2VkZ2oY

Score
10/10
smokeloaderlabbackdoortrojan

Malware Config

Extracted

Family

smokeloader

Botnet

lab

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.

    trojanbackdoorsmokeloader
  • 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 2 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.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1188
    • C:\Users\Admin\AppData\Local\Temp\file.exe
      "C:\Users\Admin\AppData\Local\Temp\file.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:4452
  • C:\Users\Admin\AppData\Roaming\bjweeav
    C:\Users\Admin\AppData\Roaming\bjweeav
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3472
    • C:\Users\Admin\AppData\Roaming\bjweeav
      C:\Users\Admin\AppData\Roaming\bjweeav
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:3232

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\bjweeav
    Filesize

    264KB

    MD5

    603e1c4b337563620dd3b0873efd2242

    SHA1

    f334f318213431b357aa7fab4a869f0d300ac079

    SHA256

    0efe59a8f13a80ac3ee5c71b2282972bd42d9e609afbff88d9bf8b9092743bd7

    SHA512

    e2791bd7c7476ecdad9d123274abf55bae7b88fb099fc7b6f438f6abfca415ed77719d908b748341034be7f74da789943e6906513ae96493d460301cb4099d4d

    Download Submit
  • C:\Users\Admin\AppData\Roaming\bjweeav
    Filesize

    264KB

    MD5

    603e1c4b337563620dd3b0873efd2242

    SHA1

    f334f318213431b357aa7fab4a869f0d300ac079

    SHA256

    0efe59a8f13a80ac3ee5c71b2282972bd42d9e609afbff88d9bf8b9092743bd7

    SHA512

    e2791bd7c7476ecdad9d123274abf55bae7b88fb099fc7b6f438f6abfca415ed77719d908b748341034be7f74da789943e6906513ae96493d460301cb4099d4d

    Download Submit
  • C:\Users\Admin\AppData\Roaming\bjweeav
    Filesize

    264KB

    MD5

    603e1c4b337563620dd3b0873efd2242

    SHA1

    f334f318213431b357aa7fab4a869f0d300ac079

    SHA256

    0efe59a8f13a80ac3ee5c71b2282972bd42d9e609afbff88d9bf8b9092743bd7

    SHA512

    e2791bd7c7476ecdad9d123274abf55bae7b88fb099fc7b6f438f6abfca415ed77719d908b748341034be7f74da789943e6906513ae96493d460301cb4099d4d

    Download Submit
  • memory/1188-135-0x0000000000750000-0x0000000000759000-memory.dmp
    Filesize

    36KB

    Download
  • memory/3204-137-0x0000000001180000-0x0000000001196000-memory.dmp
    Filesize

    88KB

    Download
  • memory/3204-151-0x00000000013B0000-0x00000000013C6000-memory.dmp
    Filesize

    88KB

    Download
  • memory/3232-150-0x0000000000400000-0x0000000000409000-memory.dmp
    Filesize

    36KB

    Download
  • memory/3232-154-0x0000000000400000-0x0000000000409000-memory.dmp
    Filesize

    36KB

    Download
  • memory/4452-134-0x0000000000400000-0x0000000000409000-memory.dmp
    Filesize

    36KB

    Download
  • memory/4452-136-0x0000000000400000-0x0000000000409000-memory.dmp
    Filesize

    36KB

    Download
  • memory/4452-138-0x0000000000400000-0x0000000000409000-memory.dmp
    Filesize

    36KB

    Download