General

  • Target

    file

  • Size

    131KB

  • Sample

    220827-kvfmxagfem

  • MD5

    947cd819b7dd277313df26e6340fc5de

  • SHA1

    728cec26b715b82f87cd7442adf94ab95374b636

  • SHA256

    6b00294a7e93953699ba6fb08a03ade46c71c6ea8d7da2d0c443d3c707fcb1c8

  • SHA512

    c34e1a83c38c69e674797f88561f4983abb0cb75581d0b4b0f32b2861166cf2f664849593c5cda217b8f2a14cfbd47aa3df50c57415908ac9903485a8cced93d

  • SSDEEP

    3072:8JrXyxd9kOSsklwxX2b+ulHXSRNvz5cKa43Lqbmhwmi8:8XQd9kmlxX2b+u5XqNr5n3mbmh

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

raccoon

Botnet

c9e52bace899d26fdf3a806e1c0205e5

C2

http://185.112.83.116/

rc4.plain

Extracted

Family

socelars

C2

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

Targets

    • Target

      file

    • Size

      131KB

    • MD5

      947cd819b7dd277313df26e6340fc5de

    • SHA1

      728cec26b715b82f87cd7442adf94ab95374b636

    • SHA256

      6b00294a7e93953699ba6fb08a03ade46c71c6ea8d7da2d0c443d3c707fcb1c8

    • SHA512

      c34e1a83c38c69e674797f88561f4983abb0cb75581d0b4b0f32b2861166cf2f664849593c5cda217b8f2a14cfbd47aa3df50c57415908ac9903485a8cced93d

    • SSDEEP

      3072:8JrXyxd9kOSsklwxX2b+ulHXSRNvz5cKa43Lqbmhwmi8:8XQd9kmlxX2b+u5XqNr5n3mbmh

    • 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.

    • 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.

    • Raccoon

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

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Socelars

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

    • Socelars payload

    • Suspicious use of NtCreateUserProcessOtherParentProcess

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

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • UPX packed file

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

    • 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.

    • Checks computer location settings

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

    • 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.

    • Accesses 2FA software files, possible credential harvesting

    • 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.

    • 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

Virtualization/Sandbox Evasion

1
T1497

File Permissions Modification

1
T1222

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

7
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

7
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Command and Control

Web Service

1
T1102

Tasks