General

  • Target

    7307d13079ae0e7242aa471d7c81554b1ad323a81fd35e62387dd21cb975da53

  • Size

    278KB

  • Sample

    220117-hvephaghg2

  • MD5

    1ba9a3c671c3ffcbbf7358f828c5c8f0

  • SHA1

    c903154b2697a833b0f6045ef94815bb1250f34a

  • SHA256

    7307d13079ae0e7242aa471d7c81554b1ad323a81fd35e62387dd21cb975da53

  • SHA512

    fd8d76223a0ca6dc7d81600cca55191f6d89a70c34e5597b46d36a87c5cd56c693a72d4346f66a48166e9c16c096a802cb898f1f3451a23c672cc9ecddbbead0

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

      7307d13079ae0e7242aa471d7c81554b1ad323a81fd35e62387dd21cb975da53

    • Size

      278KB

    • MD5

      1ba9a3c671c3ffcbbf7358f828c5c8f0

    • SHA1

      c903154b2697a833b0f6045ef94815bb1250f34a

    • SHA256

      7307d13079ae0e7242aa471d7c81554b1ad323a81fd35e62387dd21cb975da53

    • SHA512

      fd8d76223a0ca6dc7d81600cca55191f6d89a70c34e5597b46d36a87c5cd56c693a72d4346f66a48166e9c16c096a802cb898f1f3451a23c672cc9ecddbbead0

    • 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

    • Deletes itself

    • 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 SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

New Service

1
T1050

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

2
T1060

Privilege Escalation

New Service

1
T1050

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