Resubmissions

03-07-2021 10:53

210703-b9j6hbvdpj 10

03-07-2021 10:53

210703-j6y111tfhx 10

03-07-2021 09:46

210703-ggy5npv366 10

General

  • Target

    E39198B2387731ADAF3B28EF7234A83C.exe

  • Size

    4.0MB

  • Sample

    210703-j6y111tfhx

  • MD5

    e39198b2387731adaf3b28ef7234a83c

  • SHA1

    ee6a8aa67f0ed2634bc43b09b0f7d5666e03516b

  • SHA256

    fceeb6a2cbe5569d068c73f4d8b89ef6eebd51691f879a2f8d6db8f8300aea97

  • SHA512

    a3eb7728c8f63f772af553a1730e1585bae28487afa4e8e2e84f7e70f0ac1bb778dd2642a8c15b95138b196db8ec3d4f433cbed70a502649d0a4519d5055e7aa

Malware Config

Extracted

Family

redline

Botnet

DomAni

C2

varinnitof.xyz:80

Extracted

Path

C:\_readme.txt

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-ggGVjyTdgD 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: 0311ewgfDdU7G9lD7dF6jB6enq2GwTgCnebr4rB8NXS3mK2dY6
URLs

https://we.tl/t-ggGVjyTdgD

Targets

    • Target

      E39198B2387731ADAF3B28EF7234A83C.exe

    • Size

      4.0MB

    • MD5

      e39198b2387731adaf3b28ef7234a83c

    • SHA1

      ee6a8aa67f0ed2634bc43b09b0f7d5666e03516b

    • SHA256

      fceeb6a2cbe5569d068c73f4d8b89ef6eebd51691f879a2f8d6db8f8300aea97

    • SHA512

      a3eb7728c8f63f772af553a1730e1585bae28487afa4e8e2e84f7e70f0ac1bb778dd2642a8c15b95138b196db8ec3d4f433cbed70a502649d0a4519d5055e7aa

    • Modifies Windows Defender Real-time Protection settings

    • Raccoon

      Simple but powerful infostealer which was very active in 2019.

    • RedLine

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

    • RedLine Payload

    • 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.

    • Windows security bypass

    • 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)

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • 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 service image path in registry

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source 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 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

    • 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 NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

2
T1031

New Service

1
T1050

Registry Run Keys / Startup Folder

2
T1060

Privilege Escalation

New Service

1
T1050

Defense Evasion

Modify Registry

6
T1112

Disabling Security Tools

2
T1089

Virtualization/Sandbox Evasion

1
T1497

File Permissions Modification

1
T1222

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

Software Discovery

1
T1518

Query Registry

7
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

7
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Command and Control

Web Service

1
T1102

Tasks