Overview

overview

10

Static

static

f2b9b5678d...12.exe

windows7_x64

10

f2b9b5678d...12.exe

windows10_x64

10

Sharing

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General

  • Target

    f2b9b5678dc253d7890a047fb2e7fd12.exe

  • Size

    184KB

  • Sample

    211028-nqy58sgcbn

  • MD5

    f2b9b5678dc253d7890a047fb2e7fd12

  • SHA1

    a10920805fc14fc6146ca5739eccdc2a17411249

  • SHA256

    146bcad83739e0468694d0db449087942ae8e26dac0044f52fe3f481587d1f7d

  • SHA512

    5352eaaad96254472c3a205793ce9200d44227b538b57f32aa7edaea055b755bf54a2233cec85c586a2cafdba2a9e164b1ecf71aa4174c9d5a4c4e9bc53af0b8

Score
10/10
smokeloaderbackdoorpersistencesuricatatrojanupx

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://brandyjaggers.com/upload/

http://andbal.com/upload/

http://alotofquotes.com/upload/

http://szpnc.cn/upload/

http://uggeboots.com/upload/

http://100klv.com/upload/

http://rapmusic.at/upload/
rc4.i32
rc4.i32

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://raw.githubusercontent.com/sqlitey/sqlite/master/speed.ps1

Targets

    • Target

      f2b9b5678dc253d7890a047fb2e7fd12.exe

    • Size

      184KB

    • MD5

      f2b9b5678dc253d7890a047fb2e7fd12

    • SHA1

      a10920805fc14fc6146ca5739eccdc2a17411249

    • SHA256

      146bcad83739e0468694d0db449087942ae8e26dac0044f52fe3f481587d1f7d

    • SHA512

      5352eaaad96254472c3a205793ce9200d44227b538b57f32aa7edaea055b755bf54a2233cec85c586a2cafdba2a9e164b1ecf71aa4174c9d5a4c4e9bc53af0b8

    Score
    10/10
    smokeloaderbackdoorsuricatatrojanpersistenceupx

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

      trojanbackdoorsmokeloader

    • suricata: ET MALWARE ServHelper CnC Inital Checkin

      suricata: ET MALWARE ServHelper CnC Inital Checkin

      suricata

    • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

      suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

      suricata

    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies RDP port number used by Windows

    • Sets DLL path for service in the registry

      persistence

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Deletes itself

    • Loads dropped DLL

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Account Manipulation

1
T1098

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Lateral Movement

Remote Desktop Protocol

1
T1076

Collection

Exfiltration

Command and Control

Impact

Tasks