General

  • Target

    cf22cfc5cf9a55cf39f9559e13ee84f183b566b52481b62d0d464ea45bf36420

  • Size

    326KB

  • Sample

    211128-rb89fahfaq

  • MD5

    9d121fb5261d92308dbd04f2f3ca9634

  • SHA1

    230191aa36bf1697df055ce21530b5825aa52b50

  • SHA256

    cf22cfc5cf9a55cf39f9559e13ee84f183b566b52481b62d0d464ea45bf36420

  • SHA512

    b013f918db9a1a34246473070523c275ba4a3d151dfe7103d9b2368a1c5e4b5494fab840a67cb18acc34414c08f7a9205a560fa7692b02f4a35892b589e10421

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

Local

C2

185.92.73.122:19037

Targets

    • Target

      cf22cfc5cf9a55cf39f9559e13ee84f183b566b52481b62d0d464ea45bf36420

    • Size

      326KB

    • MD5

      9d121fb5261d92308dbd04f2f3ca9634

    • SHA1

      230191aa36bf1697df055ce21530b5825aa52b50

    • SHA256

      cf22cfc5cf9a55cf39f9559e13ee84f183b566b52481b62d0d464ea45bf36420

    • SHA512

      b013f918db9a1a34246473070523c275ba4a3d151dfe7103d9b2368a1c5e4b5494fab840a67cb18acc34414c08f7a9205a560fa7692b02f4a35892b589e10421

    • Arkei

      Arkei is an infostealer written in C++.

    • Bazar Loader

      Detected loader normally used to deploy BazarBackdoor malware.

    • CryptBot

      A C++ stealer distributed widely in bundle with other software.

    • 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

    • 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

    • Bazar/Team9 Loader payload

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

    • XMRig Miner Payload

    • Creates new service(s)

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Deletes itself

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • 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.

    • Checks whether UAC is enabled

    • 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

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Tasks