Resubmissions

25-11-2021 11:52

211125-n16m3afadk 10

11-11-2021 08:48

211111-kqjtrsbaa9 10

General

  • Target

    8dda40a5568292661c1157e6edf3454e9fbf6d2215085b2ac39731276f1e83e3

  • Size

    336KB

  • Sample

    211125-n16m3afadk

  • MD5

    38cbd9820e8528708c24ea761f0de8fe

  • SHA1

    17238afe79a445baf45cb5395a7a192b20beab01

  • SHA256

    8dda40a5568292661c1157e6edf3454e9fbf6d2215085b2ac39731276f1e83e3

  • SHA512

    c5342a02d6dd9719ebdf7399163efd6d8aec683e85397ac422ace0baa42a1ff04ce60c080f2068eee4fc7fea35aed998e037c63030bf208c05d5043c9767eb29

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://nalirou70.top/

http://xacokuo80.top/

rc4.i32
rc4.i32

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

Extracted

Family

redline

C2

185.159.80.90:38655

Extracted

Family

arkei

Botnet

Default

C2

http://file-file-host4.com/tratata.php

Targets

    • Target

      8dda40a5568292661c1157e6edf3454e9fbf6d2215085b2ac39731276f1e83e3

    • Size

      336KB

    • MD5

      38cbd9820e8528708c24ea761f0de8fe

    • SHA1

      17238afe79a445baf45cb5395a7a192b20beab01

    • SHA256

      8dda40a5568292661c1157e6edf3454e9fbf6d2215085b2ac39731276f1e83e3

    • SHA512

      c5342a02d6dd9719ebdf7399163efd6d8aec683e85397ac422ace0baa42a1ff04ce60c080f2068eee4fc7fea35aed998e037c63030bf208c05d5043c9767eb29

    • Arkei

      Arkei is an infostealer written in C++.

    • 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.

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Tofsee

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

    • Windows security bypass

    • suricata: ET MALWARE Win32/Vidar Variant Stealer CnC Exfil

      suricata: ET MALWARE Win32/Vidar Variant Stealer CnC Exfil

    • xmrig

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

    • Arkei Stealer Payload

    • 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

    • Loads dropped DLL

    • 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

    • Checks installed software on the system

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

    • 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

1
T1060

Privilege Escalation

New Service

1
T1050

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