Resubmissions

17-09-2021 09:23

210917-lctbqafbc4 10

17-09-2021 05:10

210917-ft8vvaege8 10

General

  • Target

    setup_x86_x64_install.exe

  • Size

    6.5MB

  • Sample

    210917-lctbqafbc4

  • MD5

    591c62c68ce81550a99f07e173a56217

  • SHA1

    4e5d00df20e12a0cc74189eb691e063b3a84990a

  • SHA256

    1eb3574e7faa18d12759034dcc5a26ac90d79badef17cf1a744854d9a9e41cb0

  • SHA512

    71f4068cc19d72251bbb29609d1ff2564228e1050c82006b82e45ac7f868c9e2cae3e738b2d3d30d372f2de4a4e1e52386cc54dede20848af4c92591dadfb4a5

Malware Config

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

medianew

C2

91.121.67.60:62102

Extracted

Family

redline

Botnet

ANI

C2

45.142.215.47:27643

Extracted

Family

metasploit

Version

windows/single_exec

Extracted

Family

raccoon

Botnet

a16e26e8e3bbf05aad922e6691134b0795801b32

Attributes
  • url4cnc

    https://telete.in/jjbadb0y

rc4.plain
rc4.plain

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: manager@mailtemp.ch Reserve e-mail address to contact us: managerhelper@airmail.cc Your personal ID: 0333gSd743dC4j04vLx6lqyFlyzpTC55w9igCGDgaBYLhUjv3Rr
Emails

manager@mailtemp.ch

managerhelper@airmail.cc

URLs

https://we.tl/t-CtDpAM1g5f

Targets

    • Target

      setup_x86_x64_install.exe

    • Size

      6.5MB

    • MD5

      591c62c68ce81550a99f07e173a56217

    • SHA1

      4e5d00df20e12a0cc74189eb691e063b3a84990a

    • SHA256

      1eb3574e7faa18d12759034dcc5a26ac90d79badef17cf1a744854d9a9e41cb0

    • SHA512

      71f4068cc19d72251bbb29609d1ff2564228e1050c82006b82e45ac7f868c9e2cae3e738b2d3d30d372f2de4a4e1e52386cc54dede20848af4c92591dadfb4a5

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba Payload

    • MetaSploit

      Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

    • Modifies Windows Defender Real-time Protection settings

    • Process spawned unexpected child process

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

    • 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

    • 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.

    • 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.

    • 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 Chrome extension

    • 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 Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

2
T1031

New Service

1
T1050

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

New Service

1
T1050

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

4
T1112

Disabling Security Tools

1
T1089

Virtualization/Sandbox Evasion

1
T1497

File Permissions Modification

1
T1222

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

4
T1081

Discovery

Software Discovery

1
T1518

Query Registry

8
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

8
T1082

Peripheral Device Discovery

2
T1120

Collection

Data from Local System

4
T1005

Command and Control

Web Service

1
T1102

Tasks

static1

Score
N/A

behavioral1

djvugluptebametasploitredlinesmokeloadersocelarstofseeanimedianewaspackv2backdoordiscoverydropperevasioninfostealerloaderpersistenceransomwarespywarestealertrojanvmprotect
Score
10/10

behavioral2

djvugluptebametasploitraccoonredlinesmokeloadersocelarstofseevidara16e26e8e3bbf05aad922e6691134b0795801b32aniaspackv2backdoordiscoverydropperevasioninfostealerloaderpersistenceransomwarestealerthemidatrojanvmprotect
Score
10/10

behavioral3

redlinesocelarstofseeanimedianewaspackv2discoveryevasioninfostealerpersistencespywarestealertrojanvmprotect
Score
10/10

behavioral4

gluptebametasploitraccoonredlinesmokeloadersocelarsvidaranimedianewaspackv2backdoordiscoverydropperevasioninfostealerloaderpersistencespywarestealerthemidatrojanvmprotect
Score
10/10

behavioral5

djvuraccoonredlinesmokeloadersocelarstofseeanimedianewaspackv2backdoordiscoveryevasioninfostealerpersistenceransomwarespywarestealerthemidatrojanvmprotect
Score
10/10

behavioral6

redlinesmokeloadersocelarstofseeanimedianewaspackv2backdoordiscoveryevasioninfostealerpersistencespywarestealertrojanvmprotect
Score
10/10

behavioral7

djvuredlinesmokeloadersocelarstofseevidaranimedianewaspackv2backdoordiscoveryevasioninfostealerpersistenceransomwarespywarestealertrojanvmprotect
Score
10/10

behavioral8

gluptebametasploitredlinesmokeloadersocelarsvidaranimedianewaspackv2backdoordiscoverydropperevasioninfostealerloaderpersistencespywarestealerthemidatrojanvmprotect
Score
10/10

behavioral9

gluptebametasploitredlinesmokeloadersocelarsvidaranimedianewaspackv2backdoordiscoverydropperevasioninfostealerloaderpersistencespywarestealertrojanvmprotect
Score
10/10