Resubmissions

16-08-2021 23:51

210816-brbk3bytl6 10

17-08-2021 08:50

210817-93dcp7bk4e

General

  • Target

    375C1FFE19F2FBA6FF5F32B4000CDEA4.exe

  • Size

    631KB

  • Sample

    210817-93dcp7bk4e

  • MD5

    375c1ffe19f2fba6ff5f32b4000cdea4

  • SHA1

    2557bf9d890e4e0832fb03474657dae9c0037db3

  • SHA256

    b9f79bcb4c0ea9e939b35813e807fda308b7038f1dea613e7d8bbd7fe127ac84

  • SHA512

    63c504fe78a323e570bc56459f6081e33444e6ebd8b39e64c1b4019c6dd32ad3d9b603f3f0e72d42963f39f5a3e676d1b3a60bd251287266b494faf591206042

Malware Config

Extracted

Family

redline

C2

205.185.119.191:18846

Extracted

Family

redline

Botnet

4

C2

213.166.68.170:16810

Extracted

Family

redline

Botnet

32222

C2

188.124.36.242:25802

Extracted

Family

redline

Botnet

ls4

C2

ighaisexel.xyz:80

Extracted

Family

smokeloader

Version

2020

C2

http://readinglistforaugust1.xyz/

http://readinglistforaugust2.xyz/

http://readinglistforaugust3.xyz/

http://readinglistforaugust4.xyz/

http://readinglistforaugust5.xyz/

http://readinglistforaugust6.xyz/

http://readinglistforaugust7.xyz/

http://readinglistforaugust8.xyz/

http://readinglistforaugust9.xyz/

http://readinglistforaugust10.xyz/

http://readinglistforaugust1.site/

http://readinglistforaugust2.site/

http://readinglistforaugust3.site/

http://readinglistforaugust4.site/

http://readinglistforaugust5.site/

http://readinglistforaugust6.site/

http://readinglistforaugust7.site/

http://readinglistforaugust8.site/

http://readinglistforaugust9.site/

http://readinglistforaugust10.site/

rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family

metasploit

Version

windows/single_exec

Extracted

Family

vidar

Version

40

Botnet

937

C2

https://lenak513.tumblr.com/

Attributes
  • profile_id

    937

Extracted

Family

vidar

Version

40

Botnet

916

C2

https://lenak513.tumblr.com/

Attributes
  • profile_id

    916

Extracted

Family

danabot

C2

152.89.247.31:443

192.210.222.81:443

Attributes
  • embedded_hash

    6AD9FE4F9E491E785665E0D144F61DAB

rsa_pubkey.plain
rsa_privkey.plain

Targets

    • Target

      375C1FFE19F2FBA6FF5F32B4000CDEA4.exe

    • Size

      631KB

    • MD5

      375c1ffe19f2fba6ff5f32b4000cdea4

    • SHA1

      2557bf9d890e4e0832fb03474657dae9c0037db3

    • SHA256

      b9f79bcb4c0ea9e939b35813e807fda308b7038f1dea613e7d8bbd7fe127ac84

    • SHA512

      63c504fe78a323e570bc56459f6081e33444e6ebd8b39e64c1b4019c6dd32ad3d9b603f3f0e72d42963f39f5a3e676d1b3a60bd251287266b494faf591206042

    • Danabot

      Danabot is a modular banking Trojan that has been linked with other malware.

    • Danabot Loader Component

    • Glupteba

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

    • Glupteba Payload

    • MetaSploit

      Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

    • Modifies Windows Defender Real-time Protection settings

    • 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

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Socelars

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

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • evasion

      evasion.

    • suricata: ET MALWARE EXE Download Request To Wordpress Folder Likely Malicious

      suricata: ET MALWARE EXE Download Request To Wordpress Folder Likely Malicious

    • suricata: ET MALWARE Generic Password Stealer User Agent Detected (RookIE)

      suricata: ET MALWARE Generic Password Stealer User Agent Detected (RookIE)

    • suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

      suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

      suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

      suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    • suricata: ET MALWARE Win32/Adware.Agent.NSU CnC Activity M2

      suricata: ET MALWARE Win32/Adware.Agent.NSU CnC Activity M2

    • Checks for common network interception software

      Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.

    • CustAttr .NET packer

      Detects CustAttr .NET packer in memory.

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

    • Nirsoft

    • Vidar Stealer

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • 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.

    • Drops startup file

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • 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

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • 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.

    • Program crash

    • 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

BITS Jobs

1
T1197

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

3
T1112

Disabling Security Tools

1
T1089

Virtualization/Sandbox Evasion

1
T1497

BITS Jobs

1
T1197

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

Software Discovery

1
T1518

Query Registry

8
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

8
T1082

Security Software Discovery

1
T1063

Peripheral Device Discovery

2
T1120

Collection

Data from Local System

3
T1005

Command and Control

Web Service

1
T1102

Tasks