General

  • Target

    9ae98deac3604c156aa4c49cfad47e5931d48b75a5187b7beaab095845abf1f6

  • Size

    280KB

  • Sample

    220922-slaz3abgc6

  • MD5

    e36b4a4ee7aae10bea1f2bb4813a4ff1

  • SHA1

    84a0d1f647cbe6b8af8512dc0ca81154eb281afe

  • SHA256

    9ae98deac3604c156aa4c49cfad47e5931d48b75a5187b7beaab095845abf1f6

  • SHA512

    5d703d1bea980babb95c2c79f0d940c41173711170f76f524f223b6d1296f40508e9a68969fca1f88539010cbecdaaee33b6c9fb0fb26416c75bffbe2c919e3b

  • SSDEEP

    6144:YFBQp7j1+SLfqYyuv+KR0yYpDd/IG0cy9SigavwVf9R:YFWB7+YyuvP+PDREH9X

Malware Config

Extracted

Family

raccoon

Botnet

7394a7fc5da9794209d8b0503ca4abf4

C2

http://45.8.145.203

rc4.plain

Extracted

Family

djvu

C2

http://winnlinne.com/lancer/get.php

Attributes
  • extension

    .ofww

  • offline_id

    xkNzhkB1wvgoDI7Uo0HPNLY3qCuwoFpP7nlhlut1

  • payload_url

    http://rgyui.top/dl/build2.exe

    http://winnlinne.com/files/1/build3.exe

  • ransomnote

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rsa_pubkey.plain

Extracted

Family

redline

Botnet

LogsDiller Cloud (Sup: @mr_golds)

C2

77.73.134.27:8163

Attributes
  • auth_value

    56c6f7b9024c076f0a96931453da7e56

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      9ae98deac3604c156aa4c49cfad47e5931d48b75a5187b7beaab095845abf1f6

    • Size

      280KB

    • MD5

      e36b4a4ee7aae10bea1f2bb4813a4ff1

    • SHA1

      84a0d1f647cbe6b8af8512dc0ca81154eb281afe

    • SHA256

      9ae98deac3604c156aa4c49cfad47e5931d48b75a5187b7beaab095845abf1f6

    • SHA512

      5d703d1bea980babb95c2c79f0d940c41173711170f76f524f223b6d1296f40508e9a68969fca1f88539010cbecdaaee33b6c9fb0fb26416c75bffbe2c919e3b

    • SSDEEP

      6144:YFBQp7j1+SLfqYyuv+KR0yYpDd/IG0cy9SigavwVf9R:YFWB7+YyuvP+PDREH9X

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Detected Djvu ransomware

    • Detects Smokeloader packer

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Raccoon

      Raccoon is an infostealer written in C++ and first seen in 2019.

    • 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.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Creates new service(s)

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Loads dropped DLL

    • Modifies file permissions

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses Microsoft Outlook profiles

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • 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

Virtualization/Sandbox Evasion

1
T1497

Modify Registry

2
T1112

File Permissions Modification

1
T1222

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

6
T1082

Peripheral Device Discovery

1
T1120

Collection

Email Collection

1
T1114

Data from Local System

1
T1005

Tasks