Resubmissions

23-09-2021 21:08

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22-09-2021 10:40

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22-09-2021 05:21

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21-09-2021 05:29

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20-09-2021 08:28

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20-09-2021 04:42

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20-09-2021 04:42

210920-fb2zksfecr 10

General

  • Target

    setup_x86_x64_install.exe

  • Size

    4.0MB

  • Sample

    210920-kczcasgahr

  • MD5

    73491325fde5366b31c09da701d07dd6

  • SHA1

    a4e1ada57e590c2df30fc26fad5f3ca57ad922b1

  • SHA256

    56a461a6cc8ad9c10cdc1d19a12d5deceb9ebefb0c871a3fc2eb83c466947a11

  • SHA512

    28b5008c542e9c486529934f74774d6d2de4b98531483b24c3c7cf82bf2214b959a1feb0085014026dd278d2a18ac6ae8a0e5a7ebb36be28abf6dccbf2d38e88

Malware Config

Extracted

Family

vidar

Version

40.7

Botnet

706

C2

https://petrenko96.tumblr.com/

Attributes
  • profile_id

    706

Extracted

Family

smokeloader

Version

2020

C2

http://varmisende.com/upload/

http://fernandomayol.com/upload/

http://nextlytm.com/upload/

http://people4jan.com/upload/

http://asfaltwerk.com/upload/

http://venerynnet1.top/

http://kevonahira2.top/

http://vegangelist3.top/

http://kingriffaele4.top/

http://arakeishant5.top/

rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

janesam

C2

65.108.20.195:6774

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://shellloader.com/welcome

Extracted

Family

icedid

Campaign

3162718704

Extracted

Path

C:\_readme.txt

Family

djvu

Ransom Note
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-vtoEIhR0SI 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: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0334gSd743dfRiXRqq62TeogIfmpihYZJ6wDmuUVD07WwczX6Bm
URLs

https://we.tl/t-vtoEIhR0SI

Targets

    • Target

      setup_x86_x64_install.exe

    • Size

      4.0MB

    • MD5

      73491325fde5366b31c09da701d07dd6

    • SHA1

      a4e1ada57e590c2df30fc26fad5f3ca57ad922b1

    • SHA256

      56a461a6cc8ad9c10cdc1d19a12d5deceb9ebefb0c871a3fc2eb83c466947a11

    • SHA512

      28b5008c542e9c486529934f74774d6d2de4b98531483b24c3c7cf82bf2214b959a1feb0085014026dd278d2a18ac6ae8a0e5a7ebb36be28abf6dccbf2d38e88

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • IcedID, BokBot

      IcedID is a banking trojan capable of stealing credentials.

    • Modifies WinLogon for persistence

    • Modifies Windows Defender Real-time Protection settings

    • Modifies system executable filetype association

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • RedLine

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

    • RedLine Payload

    • Registers COM server for autorun

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Socelars

      Socelars is an infostealer targeting browser cookies and credit card credentials.

    • Socelars Payload

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Tofsee

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

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • evasion

      evasion.

    • rl_trojan

      redline stealer.

    • suricata: ET MALWARE JS/Nemucod requesting EXE payload 2016-02-01

      suricata: ET MALWARE JS/Nemucod requesting EXE payload 2016-02-01

    • suricata: ET MALWARE JS/Nemucod.M.gen downloading EXE payload

      suricata: ET MALWARE JS/Nemucod.M.gen downloading EXE payload

    • suricata: ET MALWARE Observed Win32/Ymacco.AA36 User-Agent

      suricata: ET MALWARE Observed Win32/Ymacco.AA36 User-Agent

    • suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

      suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    • 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 Terse alphanumeric executable downloader high likelihood of being hostile

      suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    • 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

    • suricata: ET MALWARE Win32/Adware.Agent.NSU CnC Activity M2

      suricata: ET MALWARE Win32/Adware.Agent.NSU CnC Activity M2

    • suricata: ET MALWARE Win32/IcedID Request Cookie

      suricata: ET MALWARE Win32/IcedID Request Cookie

    • suricata: ET MALWARE Win32/Tnega Activity (GET)

      suricata: ET MALWARE Win32/Tnega Activity (GET)

    • Checks for common network interception software

      Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.

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

    • Vidar Stealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Blocklisted process makes network request

    • Creates new service(s)

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • 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

    • Modifies file permissions

    • 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

    • 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.

    • Checks whether UAC is enabled

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks

static1

Score
N/A

behavioral1

redlinesmokeloadersocelarstofseevidar706janesamaspackv2backdoordiscoveryevasioninfostealerpersistencespywarestealersuricatatrojan
Score
10/10

behavioral2

djvuredlinesmokeloadersocelarsvidar706janesamaspackv2backdoordiscoveryevasioninfostealerpersistenceransomwarespywarestealersuricatathemidatrojan
Score
10/10

behavioral3

redlinesmokeloadersocelarsvidar706janesamaspackv2backdoordiscoveryevasioninfostealerspywarestealersuricatathemidatrojan
Score
10/10

behavioral4

redlinesmokeloadersocelarsvidarjanesamaspackv2backdoordiscoveryevasioninfostealerpersistencespywarestealersuricatathemidatrojan
Score
10/10

behavioral5

icedidredlinesmokeloadersocelarsvidar706janesam3162718704aspackv2backdoorbankerdiscoveryevasioninfostealerpersistencespywarestealersuricatathemidatrojan
Score
10/10

behavioral6

djvuredlinesmokeloadersocelarstofseevidar706janesamaspackv2backdoordiscoveryevasioninfostealerpersistenceransomwarespywarestealersuricatathemidatrojan
Score
10/10

behavioral7

djvuicedidredlinesocelarsvidarjanesam3162718704aspackv2bankerdiscoveryevasioninfostealerransomwarespywarestealersuricatathemidatrojan
Score
10/10

behavioral8

djvuicedidredlinesmokeloadersocelarsvidar706janesam3162718704aspackv2backdoorbankerdiscoveryevasioninfostealerransomwarespywarestealersuricatathemidatrojan
Score
10/10

behavioral9

Score
1/10