General

  • Target

    ea928f16176fa1b028d925b3e7f5a0ea65b49f150a4ce006ffffdf390cf6f147

  • Size

    215KB

  • Sample

    210917-nzy7laaddq

  • MD5

    17849e2b180fffe7f7af25d136a23d7c

  • SHA1

    4e58f58d12f1115c1c2035349f7bcfd33bf7c94c

  • SHA256

    ea928f16176fa1b028d925b3e7f5a0ea65b49f150a4ce006ffffdf390cf6f147

  • SHA512

    0119186850cb62cef8e1e9023047f9bded4723b7fa10152ee1d264036480bd7e4a579cd689db81241a08c9c20f38c2a8825afc2c469d0e34f0d3eed4ba4332f3

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://venerynnet1.top/

http://kevonahira2.top/

http://vegangelist3.top/

http://kingriffaele4.top/

http://arakeishant5.top/

rc4.i32
rc4.i32

Extracted

Family

vidar

Version

40.6

Botnet

1015

C2

https://dimonbk83.tumblr.com/

Attributes
  • profile_id

    1015

Targets

    • Target

      ea928f16176fa1b028d925b3e7f5a0ea65b49f150a4ce006ffffdf390cf6f147

    • Size

      215KB

    • MD5

      17849e2b180fffe7f7af25d136a23d7c

    • SHA1

      4e58f58d12f1115c1c2035349f7bcfd33bf7c94c

    • SHA256

      ea928f16176fa1b028d925b3e7f5a0ea65b49f150a4ce006ffffdf390cf6f147

    • SHA512

      0119186850cb62cef8e1e9023047f9bded4723b7fa10152ee1d264036480bd7e4a579cd689db81241a08c9c20f38c2a8825afc2c469d0e34f0d3eed4ba4332f3

    • Raccoon

      Simple but powerful infostealer which was very active in 2019.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Windows security bypass

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

      suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Vidar Stealer

    • XMRig Miner Payload

    • Creates new service(s)

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Checks BIOS information in registry

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

    • Deletes itself

    • Loads dropped DLL

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

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

    • Checks whether UAC is enabled

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

New Service

1
T1050

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

New Service

1
T1050

Defense Evasion

Disabling Security Tools

1
T1089

Modify Registry

3
T1112

Virtualization/Sandbox Evasion

1
T1497

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

4
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

4
T1005

Tasks