Overview

overview

10

Static

static

3087_16478...52.exe

windows7_x64

10

3087_16478...52.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    3087_1647879063_1352.exe

  • Size

    296KB

  • Sample

    220404-dn7pgschcj

  • MD5

    71d6dbe9511b9fe051d5b5e75aefe06f

  • SHA1

    e47becfc1f6d724722ba7caf9f34b1dab65a76ab

  • SHA256

    f8856a9be46c533273581793064b4329f7ff7e686688433fc3a792957dbf1208

  • SHA512

    7eae4575a1aa33708fcaed0f57ce75d1afc3fa6184f372277bfff4610a501b9b23397d68a0f3659be937f2525fc49f9cf16e25d46b2e8071af64d0d4c1be74d2

Score
10/10
djvusmokeloadertofseevidar865backdoordiscoveryevasionpersistenceransomwarespywarestealersuricatatrojan

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://monsutiur4.com/

http://nusurionuy5ff.at/

http://moroitomo4.net/

http://susuerulianita1.net/

http://cucumbetuturel4.com/

http://nunuslushau.com/

http://linislominyt11.at/

http://luxulixionus.net/

http://lilisjjoer44.com/

http://nikogminut88.at/

http://limo00ruling.org/

http://mini55tunul.com/

http://samnutu11nuli.com/

http://nikogkojam.org/

http://hydroxychl0roquine.xyz/

https://hydroxychl0roquine.xyz/
rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family

tofsee

C2

niflheimr.cn

jotunheim.name

Extracted

Family

vidar

Version

51.3

Botnet

865

C2

https://t.me/hi20220328

https://indieweb.social/@samsual
Attributes
  • profile_id

    865

Extracted

Family

djvu

C2

http://fuyt.org/lancer/get.php

Attributes
  • extension

    .gtys

  • offline_id

    qwVQoIsE2xLety0oNWloOilSDuIBXJGK86LM3ot1

  • payload_url

    http://zerit.top/dl/build2.exe

    http://fuyt.org/files/1/build3.exe

  • ransomnote

    ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-fnn5kv33Vv Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: support@sysmail.ch Reserve e-mail address to contact us: supportsys@airmail.cc Your personal ID: 0439JIjdm

rsa_pubkey.plain

Targets

    • Target

      3087_1647879063_1352.exe

    • Size

      296KB

    • MD5

      71d6dbe9511b9fe051d5b5e75aefe06f

    • SHA1

      e47becfc1f6d724722ba7caf9f34b1dab65a76ab

    • SHA256

      f8856a9be46c533273581793064b4329f7ff7e686688433fc3a792957dbf1208

    • SHA512

      7eae4575a1aa33708fcaed0f57ce75d1afc3fa6184f372277bfff4610a501b9b23397d68a0f3659be937f2525fc49f9cf16e25d46b2e8071af64d0d4c1be74d2

    Score
    10/10
    smokeloaderbackdoortrojandjvutofseevidar865discoveryevasionpersistenceransomwarespywarestealersuricata

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

      ransomwaredjvu

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

      trojanbackdoorsmokeloader

    • Tofsee

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

      trojantofsee

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

      stealervidar

    • suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

      suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

      suricata

    • 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

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2

      suricata

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (passwords.txt) M2

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (passwords.txt) M2

      suricata

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

      suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

      suricata

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

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

      suricata

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern

      suricata

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

      evasion

    • Vidar Stealer

      stealer

    • Creates new service(s)

      persistence

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

      evasion

    • 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.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Accesses 2FA software files, possible credential harvesting

      spywarestealer

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Checks installed software on the system

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

      discovery

    • Checks whether UAC is enabled

      evasiontrojan

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

New Service

1
T1050

Modify Existing Service

1
T1031

Privilege Escalation

New Service

1
T1050

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

6
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Data from Local System

3
T1005

Exfiltration

Command and Control

Impact

Tasks