General

  • Target

    8f2418963275ab918d76e58075932b262a699a141accbf1966ca6ec55d5052c2

  • Size

    316KB

  • Sample

    220826-zdz3jsacg4

  • MD5

    fa06d631a09707f448f32fc9fe0c4b04

  • SHA1

    3a2d04a70706b0421dbe671ebbe76003f89967a9

  • SHA256

    8f2418963275ab918d76e58075932b262a699a141accbf1966ca6ec55d5052c2

  • SHA512

    7e98984a53c55f6cb4f1349351c05ad708023f8f8eb44cab94edbff741122e93cf76c05f332aee850bab49bcda623d51f0a0ef34bdb527b68d1698bcd586239e

  • SSDEEP

    6144:ASmkmlPcRW91DpTyFoxkloN9aKdNOX1nITzgy9yIT:DmzoG1RyexqoNfdNOX5kzgy9P

Malware Config

Extracted

Family

djvu

C2

http://acacaca.org/lancer/get.php

Attributes
  • extension

    .qqkk

  • offline_id

    0MVuBxT6o3dUivEUdhCKPfN5ljxbYptbzrFZvst1

  • payload_url

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

    http://acacaca.org/files/1/build3.exe

  • ransomnote

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rsa_pubkey.plain

Extracted

Family

redline

Botnet

dzv mix

C2

152.89.196.46:39154

Attributes
  • auth_value

    2b8b507cc7f615f506fc03f384449fb3

Extracted

Family

socelars

C2

https://hueduy.s3.eu-west-1.amazonaws.com/nbsdg818/

Targets

    • Target

      8f2418963275ab918d76e58075932b262a699a141accbf1966ca6ec55d5052c2

    • Size

      316KB

    • MD5

      fa06d631a09707f448f32fc9fe0c4b04

    • SHA1

      3a2d04a70706b0421dbe671ebbe76003f89967a9

    • SHA256

      8f2418963275ab918d76e58075932b262a699a141accbf1966ca6ec55d5052c2

    • SHA512

      7e98984a53c55f6cb4f1349351c05ad708023f8f8eb44cab94edbff741122e93cf76c05f332aee850bab49bcda623d51f0a0ef34bdb527b68d1698bcd586239e

    • SSDEEP

      6144:ASmkmlPcRW91DpTyFoxkloN9aKdNOX1nITzgy9yIT:DmzoG1RyexqoNfdNOX5kzgy9P

    • DcRat

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

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • Socelars

      Socelars is an infostealer targeting browser cookies and credit card credentials.

    • Socelars payload

    • Windows security bypass

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

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • 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

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Windows security modification

    • Accesses 2FA software files, possible credential harvesting

    • 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.

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • 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

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Disabling Security Tools

2
T1089

Modify Registry

3
T1112

Virtualization/Sandbox Evasion

1
T1497

File Permissions Modification

1
T1222

Credential Access

Credentials in Files

3
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

3
T1005

Email Collection

1
T1114

Command and Control

Web Service

1
T1102

Tasks