General

  • Target

    fe5491949cbc72f01081ed5cd5405c3598bf98ac3bea2341908aa9e9c5e9d9d1

  • Size

    335KB

  • Sample

    211220-xk71macdfr

  • MD5

    6b24fa995e1454cedfd917c085b2420f

  • SHA1

    775d4803ae5956301c3b39b39c50c674c4293fac

  • SHA256

    fe5491949cbc72f01081ed5cd5405c3598bf98ac3bea2341908aa9e9c5e9d9d1

  • SHA512

    a7fe19dd608879d270b1c2fa8d7075c8a20a55bbfa1fe533eab4d85c02b0dc28f0f6312d90b20bc7651bd402121080f49c24d4b3b9cc809ae407f5186cdc80b1

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

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

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

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

mubrikych.top

oxxyfix.xyz

Extracted

Family

redline

Botnet

1

C2

86.107.197.138:38133

Extracted

Family

redline

Botnet

install

C2

62.182.156.187:56323

Extracted

Family

amadey

Version

2.86

C2

2.56.56.210/notAnoob/index.php

Targets

    • Target

      fe5491949cbc72f01081ed5cd5405c3598bf98ac3bea2341908aa9e9c5e9d9d1

    • Size

      335KB

    • MD5

      6b24fa995e1454cedfd917c085b2420f

    • SHA1

      775d4803ae5956301c3b39b39c50c674c4293fac

    • SHA256

      fe5491949cbc72f01081ed5cd5405c3598bf98ac3bea2341908aa9e9c5e9d9d1

    • SHA512

      a7fe19dd608879d270b1c2fa8d7075c8a20a55bbfa1fe533eab4d85c02b0dc28f0f6312d90b20bc7651bd402121080f49c24d4b3b9cc809ae407f5186cdc80b1

    • Amadey

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

    • Arkei

      Arkei is an infostealer written in C++.

    • Detect Neshta Payload

    • Modifies system executable filetype association

    • Neshta

      Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

    • 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.

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

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

    • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

      suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    • 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

    • 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

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • Checks BIOS information in registry

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

    • 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 Microsoft Outlook profiles

    • 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

Execution

Scheduled Task

1
T1053

Persistence

Change Default File Association

1
T1042

New Service

1
T1050

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

New Service

1
T1050

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

2
T1112

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

6
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Tasks