General

  • Target

    70af1a1c350554270883747e70ff85910cb2cc2c02d3ec133b4457100a05694d

  • Size

    15.7MB

  • Sample

    231009-fgt6xscf47

  • MD5

    3141032e3b1e4f3ee0d0a1fe68ccc6e8

  • SHA1

    37adc7f63e2c38b2ad803c49d2782be701da9b56

  • SHA256

    70af1a1c350554270883747e70ff85910cb2cc2c02d3ec133b4457100a05694d

  • SHA512

    d063301b2c07d8722594dd2eec9fbcb100385bcaac9843c5f329537845888803c3a6ae68ac33983b9ea429bb15d74b43a189ef4bc359c80dbb19e46ae938f0e5

  • SSDEEP

    393216:g8EDE090yXtcYODN8EDE090yXtcYODCef/GyF3ibKL4BCXtU/PS:gjg09jtcYyjg09jtcYyxFSbi4StU6

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

Targets

    • Target

      70af1a1c350554270883747e70ff85910cb2cc2c02d3ec133b4457100a05694d

    • Size

      15.7MB

    • MD5

      3141032e3b1e4f3ee0d0a1fe68ccc6e8

    • SHA1

      37adc7f63e2c38b2ad803c49d2782be701da9b56

    • SHA256

      70af1a1c350554270883747e70ff85910cb2cc2c02d3ec133b4457100a05694d

    • SHA512

      d063301b2c07d8722594dd2eec9fbcb100385bcaac9843c5f329537845888803c3a6ae68ac33983b9ea429bb15d74b43a189ef4bc359c80dbb19e46ae938f0e5

    • SSDEEP

      393216:g8EDE090yXtcYODN8EDE090yXtcYODCef/GyF3ibKL4BCXtU/PS:gjg09jtcYyjg09jtcYyxFSbi4StU6

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Windows security bypass

    • Modifies boot configuration data using bcdedit

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Possible attempt to disable PatchGuard

      Rootkits can use kernel patching to embed themselves in an operating system.

    • Stops running service(s)

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

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

    • Unexpected DNS network traffic destination

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

    • Windows security modification

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Legitimate hosting services abused for malware hosting/C2

    • Manipulates WinMon driver.

      Roottkits write to WinMon to hide PIDs from being detected.

    • Manipulates WinMonFS driver.

      Roottkits write to WinMonFS to hide directories/files from being detected.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

Scheduled Task/Job

1
T1053

Persistence

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Impair Defenses

4
T1562

Disable or Modify Tools

2
T1562.001

Modify Registry

4
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Command and Control

Web Service

1
T1102

Impact

Service Stop

1
T1489

Tasks