General

  • Target

    f053a903e0bbf05e985dea741187cfeb.exe

  • Size

    255KB

  • Sample

    240115-n2vxysgbh3

  • MD5

    f053a903e0bbf05e985dea741187cfeb

  • SHA1

    e3a46ce6cbadd862373747054221322dff05d7f5

  • SHA256

    d0cb3e1d35598d959dd03c288f0f55bc0e2368ca1172948a2bc4b7b1b848d11c

  • SHA512

    9be6ffb348f60f40c290bd54136c5affdfaf57ea201547a5875fd12da01c097c4b610b530b181e5d77e445e827731a61e254a80f5dd1c07911ab3d74bb1a3568

  • SSDEEP

    6144:dwLrDSWMZF53kVdVIZBrsv2WRTQs76BVs:mzI3ksBrs76

Malware Config

Extracted

Family

smokeloader

Botnet

t200

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Targets

    • Target

      f053a903e0bbf05e985dea741187cfeb.exe

    • Size

      255KB

    • MD5

      f053a903e0bbf05e985dea741187cfeb

    • SHA1

      e3a46ce6cbadd862373747054221322dff05d7f5

    • SHA256

      d0cb3e1d35598d959dd03c288f0f55bc0e2368ca1172948a2bc4b7b1b848d11c

    • SHA512

      9be6ffb348f60f40c290bd54136c5affdfaf57ea201547a5875fd12da01c097c4b610b530b181e5d77e445e827731a61e254a80f5dd1c07911ab3d74bb1a3568

    • SSDEEP

      6144:dwLrDSWMZF53kVdVIZBrsv2WRTQs76BVs:mzI3ksBrs76

    • BetaBot

      Beta Bot is a Trojan that infects computers and disables Antivirus.

    • Modifies firewall policy service

    • Modifies security service

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Disables taskbar notifications via registry modification

    • Disables use of System Restore points

    • Sets file execution options in registry

    • Sets service image path in registry

    • Checks BIOS information in registry

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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • Checks whether UAC is enabled

    • Drops desktop.ini file(s)

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

3
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

3
T1547

Registry Run Keys / Startup Folder

3
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

8
T1112

Discovery

Query Registry

6
T1012

System Information Discovery

7
T1082

Software Discovery

1
T1518

Security Software Discovery

1
T1518.001

Peripheral Device Discovery

1
T1120

Impact

Inhibit System Recovery

1
T1490

Tasks