General

  • Target

    4f3932bfd9e6cb07d89eeb796a3160cf4dc3c5f057500cd6ca25f98f0bb93e1e

  • Size

    277KB

  • Sample

    220117-az1tjagfcq

  • MD5

    4d35f5e7ce0dcefbeaceb051d16b3cac

  • SHA1

    3e4f0f69dd393b1886b30eb09f6f58da88a4b78d

  • SHA256

    4f3932bfd9e6cb07d89eeb796a3160cf4dc3c5f057500cd6ca25f98f0bb93e1e

  • SHA512

    4116bec5c223c041424ccfe57030763c48ec4edc6fa9a1c64471668280e2cd07d1238f9293747a5557ed99dc5cd3d1132c9c27e094ff2fa148a9ea2d814e8d97

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

arkei

Botnet

Default

C2

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

Extracted

Family

tofsee

C2

patmushta.info

parubey.info

Extracted

Family

raccoon

Version

1.8.4-hotfixs

rc4.plain

Targets

    • Target

      4f3932bfd9e6cb07d89eeb796a3160cf4dc3c5f057500cd6ca25f98f0bb93e1e

    • Size

      277KB

    • MD5

      4d35f5e7ce0dcefbeaceb051d16b3cac

    • SHA1

      3e4f0f69dd393b1886b30eb09f6f58da88a4b78d

    • SHA256

      4f3932bfd9e6cb07d89eeb796a3160cf4dc3c5f057500cd6ca25f98f0bb93e1e

    • SHA512

      4116bec5c223c041424ccfe57030763c48ec4edc6fa9a1c64471668280e2cd07d1238f9293747a5557ed99dc5cd3d1132c9c27e094ff2fa148a9ea2d814e8d97

    • 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.

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Tofsee

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

    • 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)

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

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

    • 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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • 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

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

5
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Tasks