Overview

overview

10

Static

static

Bear_Vpn.exe

windows7_x64

10

Bear_Vpn.exe

windows10_x64

10

Sharing

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General

  • Target

    Bear_Vpn.exe

  • Size

    4.2MB

  • Sample

    210714-na87ctpmqe

  • MD5

    7dc04c099e434e8d7128094ca400683e

  • SHA1

    efca4dad94bd2e73b785caaca9f44c46843ee704

  • SHA256

    ab8d377d550ebae841ab75d2d6257fb38960efc049037bbd2468483871897e5d

  • SHA512

    d849efe9eadf968d39ffd1919889d8497976e25746489b87c1ab5ce01e5ca1156eb8e1a42ca50cab16ac18447e8a47c291be07add2d003ae806626251675923f

Score
10/10
oskiraccoonredlinesmokeloadertofseevidar13_7_r865903mixryzki2kmore1407prolvi_20k_server_@sel12aspackv2backdoordiscoveryevasioninfostealerpersistencespywarestealerthemidatrojanupx

Malware Config

Extracted

Family

oski

C2

a343345.me

Extracted

Family

redline

C2

woltelorda.xyz:80

Extracted

Family

vidar

Version

39.5

Botnet

903

C2

https://olegf9844.tumblr.com/

Attributes
  • profile_id

    903

Extracted

Family

redline

Botnet

MIXRyzki2k

C2

185.215.113.62:51929

Extracted

Family

smokeloader

Version

2020

C2

http://999080321newfolder1002002131-service1002.space/

http://999080321newfolder1002002231-service1002.space/

http://999080321newfolder3100231-service1002.space/

http://999080321newfolder1002002431-service1002.space/

http://999080321newfolder1002002531-service1002.space/

http://999080321newfolder33417-012425999080321.space/

http://999080321test125831-service10020125999080321.space/

http://999080321test136831-service10020125999080321.space/

http://999080321test147831-service10020125999080321.space/

http://999080321test146831-service10020125999080321.space/

http://999080321test134831-service10020125999080321.space/

http://999080321est213531-service1002012425999080321.ru/

http://999080321yes1t3481-service10020125999080321.ru/

http://999080321test13561-service10020125999080321.su/

http://999080321test14781-service10020125999080321.info/

http://999080321test13461-service10020125999080321.net/

http://999080321test15671-service10020125999080321.tech/

http://999080321test12671-service10020125999080321.online/

http://999080321utest1341-service10020125999080321.ru/

http://999080321uest71-service100201dom25999080321.ru/
rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

PROLVI_20K_SERVER_@

C2

80.92.206.25:4311

Extracted

Family

redline

Botnet

sel12

C2

kathonaror.xyz:80

Extracted

Family

redline

Botnet

More1407

C2

109.248.11.240:18612

Extracted

Family

vidar

Version

39.5

Botnet

865

C2

https://olegf9844.tumblr.com/

Attributes
  • profile_id

    865

Extracted

Family

redline

Botnet

13_7_r

C2

xtarweanda.xyz:80

Targets

    • Target

      Bear_Vpn.exe

    • Size

      4.2MB

    • MD5

      7dc04c099e434e8d7128094ca400683e

    • SHA1

      efca4dad94bd2e73b785caaca9f44c46843ee704

    • SHA256

      ab8d377d550ebae841ab75d2d6257fb38960efc049037bbd2468483871897e5d

    • SHA512

      d849efe9eadf968d39ffd1919889d8497976e25746489b87c1ab5ce01e5ca1156eb8e1a42ca50cab16ac18447e8a47c291be07add2d003ae806626251675923f

    Score
    10/10
    oskiredlinesmokeloadervidar903mixryzki2kaspackv2backdoorevasioninfostealerpersistencestealerthemidatrojanupxraccoontofsee13_7_r865more1407prolvi_20k_server_@sel12discoveryspyware

    • Modifies Windows Defender Real-time Protection settings

      evasiontrojan

    • Oski

      Oski is an infostealer targeting browser data, crypto wallets.

      infostealeroski

    • 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.

      stealerraccoon

    • 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

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • 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

    • Windows security bypass

      evasiontrojan

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

      evasion

    • Vidar Stealer

      stealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

      aspackv2

    • Creates new service(s)

      persistence

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

      evasion

    • Sets service image path in registry

      persistence

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • 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

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

      spywarestealer

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

      spywarestealer

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Accesses 2FA software files, possible credential harvesting

      spywarestealer

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Adds Run key to start application

      persistence

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Checks whether UAC is enabled

      evasiontrojan

    • 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

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

2
T1031

New Service

1
T1050

Registry Run Keys / Startup Folder

2
T1060

Scheduled Task

1
T1053

Privilege Escalation

New Service

1
T1050

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

6
T1112

Disabling Security Tools

2
T1089

Virtualization/Sandbox Evasion

1
T1497

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

5
T1081

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

6
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Data from Local System

5
T1005

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Tasks