Resubmissions

16-09-2021 20:34

210916-zcme3ahbgj 10

16-09-2021 14:08

210916-rfhmaadeg8 10

General

  • Target

    setup_x86_x64_install.exe

  • Size

    7.1MB

  • Sample

    210916-zcme3ahbgj

  • MD5

    7b15ff87e11bd9bc7512b41635b68aeb

  • SHA1

    3ddf56275a2132a384d251247f38cc086b6db914

  • SHA256

    f92cfeb06515f18113a950d5bd569a23cdd85514ef509ccff6c5a4e9a08ca4c7

  • SHA512

    d16b63a203a3322ec70f99a7ca692770c45710e2c0d50f24bf027d8d41d579d721e8cf5f20cc95436b1640b821b8efe1a3c617232cdc18c13be0e37431f7baab

Malware Config

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-CtDpAM1g5f 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: 0333gSd743dfRiXRqq62TeogIfmpihYZJ6wDmuUVD07WwczX6Bm
URLs

https://we.tl/t-CtDpAM1g5f

Extracted

Family

vidar

Version

40.6

Botnet

706

C2

https://dimonbk83.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/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

medianew

C2

91.121.67.60:62102

Extracted

Family

redline

Botnet

ANI

C2

45.142.215.47:27643

Extracted

Family

icedid

Campaign

1721901314

Extracted

Family

redline

Botnet

matthew14

C2

193.188.21.209:41939

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://shellloader.com/welcome

Targets

    • Target

      setup_x86_x64_install.exe

    • Size

      7.1MB

    • MD5

      7b15ff87e11bd9bc7512b41635b68aeb

    • SHA1

      3ddf56275a2132a384d251247f38cc086b6db914

    • SHA256

      f92cfeb06515f18113a950d5bd569a23cdd85514ef509ccff6c5a4e9a08ca4c7

    • SHA512

      d16b63a203a3322ec70f99a7ca692770c45710e2c0d50f24bf027d8d41d579d721e8cf5f20cc95436b1640b821b8efe1a3c617232cdc18c13be0e37431f7baab

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • IcedID, BokBot

      IcedID is a banking trojan capable of stealing credentials.

    • Modifies Windows Defender Real-time Protection settings

    • NetSupport

      NetSupport is a remote access tool sold as a legitimate system administration software.

    • 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

    • 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.

    • Zloader, Terdot, DELoader, ZeusSphinx

      Zloader is a malware strain that was initially discovered back in August 2015.

    • suricata: ET MALWARE Amadey CnC Check-In

      suricata: ET MALWARE Amadey CnC Check-In

    • 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 Possible Dridex Download URI Struct with no referer

      suricata: ET MALWARE Possible Dridex Download URI Struct with no referer

    • suricata: ET MALWARE Possible Kelihos.F EXE Download Common Structure

      suricata: ET MALWARE Possible Kelihos.F EXE Download Common Structure

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

      suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    • suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

      suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

    • 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: 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.

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • 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

djvuicedidredlinesmokeloadersocelarsvidar706animedianew1721901314aspackv2backdoorbankerdiscoveryevasioninfostealerpersistenceransomwarespywarestealersuricatatrojanvmprotect
Score
10/10

behavioral2

redlinesmokeloadersocelarsvidar706animatthew14aspackv2backdoordiscoveryevasioninfostealerpersistencespywarestealersuricatatrojanvmprotect
Score
10/10

behavioral3

netsupportredlinesocelarsvidarzloaderanimedianewaspackv2botnetdiscoveryevasioninfostealerpersistenceratspywarestealersuricatathemidatrojanvmprotect
Score
10/10

behavioral4

djvuicedidredlinesmokeloadersocelarstofseevidar706animedianew1721901314aspackv2backdoorbankerdiscoveryevasioninfostealerpersistenceransomwarespywarestealersuricatathemidatrojanvmprotect
Score
10/10

behavioral5

redlinesmokeloadersocelarsvidar706animedianewaspackv2backdoorinfostealerstealersuricatatrojanvmprotect
Score
10/10

behavioral6

asyncraticedidredlinesmokeloadersocelarstofseevidar706animedianew1721901314aspackv2backdoorbankerdiscoveryevasioninfostealerpersistenceratspywarestealersuricatatrojanvmprotect
Score
10/10

behavioral7

djvunetsupportredlinesmokeloadersocelarstofseevidar706animedianewaspackv2backdoordiscoveryevasioninfostealerpersistenceransomwareratspywarestealersuricatatrojanvmprotect
Score
10/10

behavioral8

djvuicedidnetsupportredlinesmokeloadersocelarstofseevidar706animedianew1721901314aspackv2backdoorbankerdiscoveryevasioninfostealerpersistenceransomwareratspywarestealersuricatathemidatrojanvmprotect
Score
10/10