General

  • Target

    c2c2eaf2e751633b2d3766d188d84b5b4d360225b2c39808e53fc6d891258a50

  • Size

    290KB

  • Sample

    211219-fej8yaggej

  • MD5

    9f4088764f0ffdd628d45c22bfd91c3b

  • SHA1

    ceee7ecb7723417d254b636e604f0c30284f6a34

  • SHA256

    c2c2eaf2e751633b2d3766d188d84b5b4d360225b2c39808e53fc6d891258a50

  • SHA512

    a661cfbf3258775e814292c3f2938b27abd19fb4904da0e9eed45d42c7bf759098278436e28ba886dfd48320a13fae3755340780d80f2f1e4ca0350940663b3c

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

mubrikych.top

oxxyfix.xyz

Extracted

Family

redline

Botnet

1

C2

86.107.197.138:38133

Extracted

Family

amadey

Version

2.86

C2

185.215.113.35/d2VxjasuwS/index.php

Extracted

Family

redline

Botnet

444

C2

31.131.254.105:1498

Targets

    • Target

      c2c2eaf2e751633b2d3766d188d84b5b4d360225b2c39808e53fc6d891258a50

    • Size

      290KB

    • MD5

      9f4088764f0ffdd628d45c22bfd91c3b

    • SHA1

      ceee7ecb7723417d254b636e604f0c30284f6a34

    • SHA256

      c2c2eaf2e751633b2d3766d188d84b5b4d360225b2c39808e53fc6d891258a50

    • SHA512

      a661cfbf3258775e814292c3f2938b27abd19fb4904da0e9eed45d42c7bf759098278436e28ba886dfd48320a13fae3755340780d80f2f1e4ca0350940663b3c

    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

    • Arkei

      Arkei is an infostealer written in C++.

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • 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 Amadey CnC Check-In

      suricata: ET MALWARE Amadey CnC Check-In

    • suricata: ET MALWARE DCRAT Activity (GET)

      suricata: ET MALWARE DCRAT Activity (GET)

    • suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

      suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

    • suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

      suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

    • 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

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • 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

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • 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

4
T1112

Install Root Certificate

1
T1130

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

Command and Control

Web Service

1
T1102

Tasks