Overview

overview

10

Static

static

39f9f09c74...c3.exe

windows7_x64

10

39f9f09c74...c3.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    92s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    25-06-2022 07:12

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General

  • Target

    39f9f09c74d55aa33b5195b379d1b4e36fe7b95c6e59dd3a489cf3df455284c3.exe

  • Size

    356KB

  • MD5

    ef2171a4b6bf77cb37be03a4a29ac32e

  • SHA1

    156afaac3dd2accdc792f3b6d297a1446965dca5

  • SHA256

    39f9f09c74d55aa33b5195b379d1b4e36fe7b95c6e59dd3a489cf3df455284c3

  • SHA512

    1f106f26e97b24bc806ae26ab2f4cf2a0f42dd83cbdec7b4c2932c4906476b697d55ddb61cdb8898d622e73f4cd0f8cd63198bc66ad1546795df9da7c023efec

Score
10/10
smokeloaderbackdoortrojan

Malware Config

Extracted

Family

smokeloader

Version

2018

C2

http://js0c892.se/wp/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

    trojanbackdoorsmokeloader
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\39f9f09c74d55aa33b5195b379d1b4e36fe7b95c6e59dd3a489cf3df455284c3.exe
    "C:\Users\Admin\AppData\Local\Temp\39f9f09c74d55aa33b5195b379d1b4e36fe7b95c6e59dd3a489cf3df455284c3.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4444
    • C:\Users\Admin\AppData\Local\Temp\39f9f09c74d55aa33b5195b379d1b4e36fe7b95c6e59dd3a489cf3df455284c3.exe
      "C:\Users\Admin\AppData\Local\Temp\39f9f09c74d55aa33b5195b379d1b4e36fe7b95c6e59dd3a489cf3df455284c3.exe"
      2⤵
      • Maps connected drives based on registry
      • Suspicious behavior: MapViewOfSection
      PID:2656

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
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

  • memory/2044-132-0x00000000014E0000-0x00000000014F5000-memory.dmp
    Filesize

    84KB

    Download
  • memory/2656-131-0x0000000000000000-mapping.dmp
    Download
  • memory/2656-133-0x0000000000400000-0x0000000000409000-memory.dmp
    Filesize

    36KB

    Download
  • memory/4444-130-0x0000000000400000-0x000000000045D000-memory.dmp
    Filesize

    372KB

    Download