General

  • Target

    d65fdc8389357ba633919c9a52c6d6ae0568343676be45e33652ad41d665e935

  • Size

    273KB

  • Sample

    220116-vs31jafgc2

  • MD5

    f45189e23cb7e39916bcdef2d4fa5a7a

  • SHA1

    0deae82cc14f39ad281ca02d98443aa343df71d9

  • SHA256

    d65fdc8389357ba633919c9a52c6d6ae0568343676be45e33652ad41d665e935

  • SHA512

    ec34f2d3e9b6b1b22e0d2f5e56eb7452ca8c01f03e417c6c28e84511a1703bf37a4ac11a9ca21605d3f79afd4187f2d46e9082f51a8ec1a199af4d0c0ace424a

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

patmushta.info

parubey.info

Extracted

Family

arkei

Botnet

Default

C2

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

Extracted

Family

raccoon

Version

1.8.4-hotfixs

rc4.plain

Targets

    • Target

      d65fdc8389357ba633919c9a52c6d6ae0568343676be45e33652ad41d665e935

    • Size

      273KB

    • MD5

      f45189e23cb7e39916bcdef2d4fa5a7a

    • SHA1

      0deae82cc14f39ad281ca02d98443aa343df71d9

    • SHA256

      d65fdc8389357ba633919c9a52c6d6ae0568343676be45e33652ad41d665e935

    • SHA512

      ec34f2d3e9b6b1b22e0d2f5e56eb7452ca8c01f03e417c6c28e84511a1703bf37a4ac11a9ca21605d3f79afd4187f2d46e9082f51a8ec1a199af4d0c0ace424a

    • Amadey

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

    • Arkei

      Arkei is an infostealer written in C++.

    • Raccoon

      Simple but powerful infostealer which was very active in 2019.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Tofsee

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

    • Windows security bypass

    • 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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Deletes itself

    • Drops startup file

    • Loads dropped DLL

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • 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

    • 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

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

Email Collection

1
T1114

Command and Control

Web Service

1
T1102

Tasks