General

  • Target

    b760b4d4c193c749e94b0b4f3a302e3ad85f93a684ab849ca05691fcc2c011e8

  • Size

    183KB

  • Sample

    220827-esgvasdggr

  • MD5

    db39b00a85513a16af4b6d28c911ea67

  • SHA1

    49b5e45bcd1e2cae77c08ab8f4af290d7277bfee

  • SHA256

    b760b4d4c193c749e94b0b4f3a302e3ad85f93a684ab849ca05691fcc2c011e8

  • SHA512

    7f12f092ff9787b8cec23b025128b1944af2caa587aa89187b0714898c9134ef0442a8dfdd8526ece5b97c5ae4f1cdd4ea556bb3159c19b4608401e12990102c

  • SSDEEP

    3072:XVrXpTdgWQkBKxdjNW1Mk13570ldHz64Nf4hdV6HM1sxkgaBChgpZa9uD6Vdyhkf:BXVdgcudp4BJkGeCKigaLwVf

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

      b760b4d4c193c749e94b0b4f3a302e3ad85f93a684ab849ca05691fcc2c011e8

    • Size

      183KB

    • MD5

      db39b00a85513a16af4b6d28c911ea67

    • SHA1

      49b5e45bcd1e2cae77c08ab8f4af290d7277bfee

    • SHA256

      b760b4d4c193c749e94b0b4f3a302e3ad85f93a684ab849ca05691fcc2c011e8

    • SHA512

      7f12f092ff9787b8cec23b025128b1944af2caa587aa89187b0714898c9134ef0442a8dfdd8526ece5b97c5ae4f1cdd4ea556bb3159c19b4608401e12990102c

    • SSDEEP

      3072:XVrXpTdgWQkBKxdjNW1Mk13570ldHz64Nf4hdV6HM1sxkgaBChgpZa9uD6Vdyhkf:BXVdgcudp4BJkGeCKigaLwVf

    • 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

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • 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 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

    • 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 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

File Permissions Modification

1
T1222

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

4
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Command and Control

Web Service

1
T1102

Tasks