Overview

overview

10

Static

static

f4fc3a0a93...a8.exe

windows7_x64

10

f4fc3a0a93...a8.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    f4fc3a0a93528ac3e2643db33a9d2fa8.exe

  • Size

    284KB

  • Sample

    220330-f65nyschaj

  • MD5

    f4fc3a0a93528ac3e2643db33a9d2fa8

  • SHA1

    ecaa0b6d8d2fbe4abc2789b37e618a4d60f4e4e4

  • SHA256

    c08fe6f8a3832506bfaa7b3fcc4bdbd6804418cbddcaf2811fbf9b42f7d1c1ed

  • SHA512

    a3e36ecf1d3d35a67e0d997327f1b1aff1101741948d8726b77bdce86657b5b725d304f50e52d26b54066aa4779b23ee1e27085809da78bb93c35a5fa5fa31ab

Score
10/10
djvuredlinesmokeloadertofseevidar865backdoorcollectiondiscoveryevasioninfostealerpersistenceransomwarespywarestealersuricatatrojan

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/
rc4.i32
rc4.i32

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .pphg

  • offline_id

    dYUDKE4rrBmSPsf8srHMsyP40jle9uyxDDCfdxt1

  • 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-NdDG3HIUZp 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: 0429Jsfkjn

rsa_pubkey.plain

Extracted

Family

tofsee

C2

niflheimr.cn

jotunheim.name

Extracted

Family

vidar

Version

51.2

Botnet

865

C2

https://t.me/hi20220328

https://queer.party/@s4m1al
Attributes
  • profile_id

    865

Targets

    • Target

      f4fc3a0a93528ac3e2643db33a9d2fa8.exe

    • Size

      284KB

    • MD5

      f4fc3a0a93528ac3e2643db33a9d2fa8

    • SHA1

      ecaa0b6d8d2fbe4abc2789b37e618a4d60f4e4e4

    • SHA256

      c08fe6f8a3832506bfaa7b3fcc4bdbd6804418cbddcaf2811fbf9b42f7d1c1ed

    • SHA512

      a3e36ecf1d3d35a67e0d997327f1b1aff1101741948d8726b77bdce86657b5b725d304f50e52d26b54066aa4779b23ee1e27085809da78bb93c35a5fa5fa31ab

    Score
    10/10
    djvuredlinesmokeloadertofseevidar865backdoorcollectiondiscoveryevasioninfostealerpersistenceransomwarespywarestealersuricatatrojan

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

      ransomwaredjvu

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

      infostealerredline

    • RedLine Payload

    • 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 Sharik/Smoke CnC Beacon 11

      suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

      suricata

    • 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

    • Vidar Stealer

      stealer

    • Creates new service(s)

      persistence

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

      evasion

    • Checks computer location settings

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

    • Deletes itself

    • 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 Microsoft Outlook profiles

      collection

    • 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

    • 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

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

4
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Tasks