General

  • Target

    90b8d989d7e7e933125f5fab8ae6d94825a3aca449f51b16f6430efa9e9dd8d2

  • Size

    292KB

  • Sample

    211123-x5frwaecb5

  • MD5

    d188d763566adabf32606e990d21c307

  • SHA1

    6a2d175cbc8148f7fe37e3a89cda766e7193f1bc

  • SHA256

    90b8d989d7e7e933125f5fab8ae6d94825a3aca449f51b16f6430efa9e9dd8d2

  • SHA512

    b98cf3348640476aa948ad59f30bd49db6a63344c153ed5d12dfa3adf785574ad186cf85bc46c906b33ab821b6496d501fa0882aac57461c80f76a4411172014

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://nalirou70.top/

http://xacokuo80.top/

http://srtuiyhuali.at/

http://fufuiloirtu.com/

http://amogohuigotuli.at/

http://novohudosovu.com/

http://brutuilionust.com/

http://bubushkalioua.com/

http://dumuilistrati.at/

http://verboliatsiaeeees.com/

rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

Extracted

Family

redline

C2

185.159.80.90:38655

185.223.92.157:7659

Extracted

Family

redline

Botnet

@123

C2

141.95.82.50:63652

Extracted

Family

redline

Botnet

Firefox

C2

194.127.179.0:42417

Extracted

Family

redline

Botnet

cheat

C2

194.26.232.164:32592

Targets

    • Target

      90b8d989d7e7e933125f5fab8ae6d94825a3aca449f51b16f6430efa9e9dd8d2

    • Size

      292KB

    • MD5

      d188d763566adabf32606e990d21c307

    • SHA1

      6a2d175cbc8148f7fe37e3a89cda766e7193f1bc

    • SHA256

      90b8d989d7e7e933125f5fab8ae6d94825a3aca449f51b16f6430efa9e9dd8d2

    • SHA512

      b98cf3348640476aa948ad59f30bd49db6a63344c153ed5d12dfa3adf785574ad186cf85bc46c906b33ab821b6496d501fa0882aac57461c80f76a4411172014

    • 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.

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • Windows security bypass

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • XMRig Miner Payload

    • Creates new service(s)

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Deletes itself

    • Reads user/profile data of web browsers

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

    • 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.

    • Drops desktop.ini file(s)

    • 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

New Service

1
T1050

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

2
T1060

Scheduled Task

1
T1053

Privilege Escalation

New Service

1
T1050

Scheduled Task

1
T1053

Defense Evasion

Disabling Security Tools

1
T1089

Modify Registry

3
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Tasks