General

  • Target

    7042b758914fbab9b9f8b4656b733386.exe

  • Size

    290KB

  • Sample

    210619-ctyx9c3ekn

  • MD5

    7042b758914fbab9b9f8b4656b733386

  • SHA1

    793e31735d0e879f6480d1ded212c7f49cad54c4

  • SHA256

    1f445aea75db35206f00610e21e04bcae95c26155f9fccb3dbbb7b8601ba1404

  • SHA512

    1bd4091bf5970c989836756aeb047c684db2ece102d816d8ab8e378bcaa27e69ac84f319e7fd6139bc1a35362b222819372bda64de07be90305b5ba7f88d5b6c

Malware Config

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
rc4.i32
rc4.i32

Extracted

Family

raccoon

Botnet

50f8ded12c46443e43915127b1219ac2fc439bb6

Attributes
  • url4cnc

    https://tttttt.me/mimimimaxormin

rc4.plain
rc4.plain

Extracted

Family

vidar

Version

39.3

Botnet

824

C2

https://bandakere.tumblr.com

Attributes
  • profile_id

    824

Extracted

Family

vidar

Version

39.3

Botnet

517

C2

https://bandakere.tumblr.com

Attributes
  • profile_id

    517

Targets

    • Target

      7042b758914fbab9b9f8b4656b733386.exe

    • Size

      290KB

    • MD5

      7042b758914fbab9b9f8b4656b733386

    • SHA1

      793e31735d0e879f6480d1ded212c7f49cad54c4

    • SHA256

      1f445aea75db35206f00610e21e04bcae95c26155f9fccb3dbbb7b8601ba1404

    • SHA512

      1bd4091bf5970c989836756aeb047c684db2ece102d816d8ab8e378bcaa27e69ac84f319e7fd6139bc1a35362b222819372bda64de07be90305b5ba7f88d5b6c

    • Raccoon

      Simple but powerful infostealer which was very active in 2019.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • 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

    • Vidar Stealer

    • Creates new service(s)

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Deletes itself

    • 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.

    • 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.

    • 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 SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

New Service

1
T1050

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

2
T1060

Privilege Escalation

New Service

1
T1050

Defense Evasion

Disabling Security Tools

1
T1089

Modify Registry

4
T1112

File Permissions Modification

1
T1222

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

4
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

4
T1005

Tasks