General

  • Target

    f4b05d4212ed29cb58726eb16ccf0bcdeb36656457d7e6b30450975a6bd99a1b

  • Size

    314KB

  • Sample

    211127-1bymdadegn

  • MD5

    99ad84902b5e9b2e73e4cb9dbe6584b2

  • SHA1

    b454fe4d23034c6060d0161395cfdeeff67a709d

  • SHA256

    f4b05d4212ed29cb58726eb16ccf0bcdeb36656457d7e6b30450975a6bd99a1b

  • SHA512

    b571363ee7198696d7f742292fe413c33023e79c2aca9b5d853712a88c6a9e94983d1760ae8c08671b62176fd864d824bc34dac2fb9c5bec0f74b831d3a823d4

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://host-data-coin-11.com/

http://file-coin-host-12.com/

rc4.i32
rc4.i32

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

Extracted

Family

redline

C2

185.189.167.130:38637

Extracted

Family

arkei

Botnet

Default

C2

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

Extracted

Family

redline

Botnet

Robot

C2

178.238.8.47:36439

Targets

    • Target

      f4b05d4212ed29cb58726eb16ccf0bcdeb36656457d7e6b30450975a6bd99a1b

    • Size

      314KB

    • MD5

      99ad84902b5e9b2e73e4cb9dbe6584b2

    • SHA1

      b454fe4d23034c6060d0161395cfdeeff67a709d

    • SHA256

      f4b05d4212ed29cb58726eb16ccf0bcdeb36656457d7e6b30450975a6bd99a1b

    • SHA512

      b571363ee7198696d7f742292fe413c33023e79c2aca9b5d853712a88c6a9e94983d1760ae8c08671b62176fd864d824bc34dac2fb9c5bec0f74b831d3a823d4

    • Arkei

      Arkei is an infostealer written in C++.

    • Bazar Loader

      Detected loader normally used to deploy BazarBackdoor malware.

    • 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 Sharik/Smoke CnC Beacon 11

      suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

    • xmrig

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

    • Arkei Stealer Payload

    • Bazar/Team9 Loader 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 NtSetInformationThreadHideFromDebugger

    • 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

2
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