Overview

overview

10

Static

static

41552ff80f...e9.exe

windows7_x64

10

41552ff80f...e9.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    187s
  • max time network
    194s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    08-07-2022 06:05

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General

  • Target

    41552ff80f1fa54ced4bcd15edf0f10c498a5b4ab699451322970c2d230d6ce9.exe

  • Size

    240KB

  • MD5

    491bf48093ce883bc2caf2e7d37f91a5

  • SHA1

    388f82016f77a1809e73162c447d1d3d34288b29

  • SHA256

    41552ff80f1fa54ced4bcd15edf0f10c498a5b4ab699451322970c2d230d6ce9

  • SHA512

    223cb619a9598ffd1f33197bd25c8208a3792a46b7062945ec320e2f499fe86a40f17720b8140cfc936f2b0b1d58620bb31dba1b0fa25935cb65e404ae90c7c0

Score
10/10
smokeloaderbackdoorpersistencesuricatatrojan

Malware Config

Extracted

Family

smokeloader

Version

2017

C2

http://derevo.bit/1/

http://ds12.ng/1/

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

    trojanbackdoorsmokeloader
  • suricata: ET MALWARE Possible Sharik/Smoke Loader Microsoft Connectivity check M3

    suricata: ET MALWARE Possible Sharik/Smoke Loader Microsoft Connectivity check M3

    suricata
  • suricata: ET MALWARE Sharik/Smoke Loader Java Connectivity Check

    suricata: ET MALWARE Sharik/Smoke Loader Java Connectivity Check

    suricata
  • suricata: ET MALWARE Sharik/Smoke Loader Microsoft Connectivity Check

    suricata: ET MALWARE Sharik/Smoke Loader Microsoft Connectivity Check

    suricata
  • Adds policy Run key to start application 2 TTPs 2 IoCs
    persistence
  • Unexpected DNS network traffic destination 3 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • 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: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\41552ff80f1fa54ced4bcd15edf0f10c498a5b4ab699451322970c2d230d6ce9.exe
    "C:\Users\Admin\AppData\Local\Temp\41552ff80f1fa54ced4bcd15edf0f10c498a5b4ab699451322970c2d230d6ce9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2308
    • C:\Users\Admin\AppData\Local\Temp\41552ff80f1fa54ced4bcd15edf0f10c498a5b4ab699451322970c2d230d6ce9.exe
      "C:\Users\Admin\AppData\Local\Temp\41552ff80f1fa54ced4bcd15edf0f10c498a5b4ab699451322970c2d230d6ce9.exe"
      2⤵
      • Maps connected drives based on registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:3628
      • C:\Windows\SysWOW64\explorer.exe
        explorer.exe
        3⤵
        • Adds policy Run key to start application
        PID:3184

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

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/2308-132-0x00000000005AF000-0x00000000005B4000-memory.dmp
    Filesize

    20KB

    Download
  • memory/3184-136-0x0000000000000000-mapping.dmp
    Download
  • memory/3184-137-0x00000000004A0000-0x00000000008D3000-memory.dmp
    Filesize

    4.2MB

    Download
  • memory/3184-138-0x00000000010C0000-0x00000000010CA000-memory.dmp
    Filesize

    40KB

    Download
  • memory/3628-130-0x0000000000000000-mapping.dmp
    Download
  • memory/3628-131-0x0000000000400000-0x0000000000404000-memory.dmp
    Filesize

    16KB

    Download
  • memory/3628-133-0x0000000000400000-0x0000000000404000-memory.dmp
    Filesize

    16KB

    Download
  • memory/3628-134-0x0000000000030000-0x000000000003A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/3628-135-0x0000000000030000-0x000000000003A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/3628-139-0x0000000000030000-0x000000000003A000-memory.dmp
    Filesize

    40KB

    Download