Resubmissions

30-09-2021 05:45

210930-gf4veagef9 10

29-09-2021 21:32

210929-1dyp6agaam 10

29-09-2021 18:54

210929-xkfldaffb2 10

General

  • Target

    setup_x86_x64_install.exe

  • Size

    7.1MB

  • Sample

    210930-gf4veagef9

  • MD5

    cd08a9c57ce8115745d3a99dec48847d

  • SHA1

    2ea5cea16935f511935a86ea7a2903a44d593247

  • SHA256

    52895feec7505eb0c3a418c93ecaf8559d4d7f9f67c68e3a268c606c069d04cc

  • SHA512

    0ad7757713eca784f6b8c50e1912f91264f0e210dd61e7a6e779390dc2040b6744d552aac120c2ec8d65bfbb048672cb7959d026691ef1037b63e24fec024233

Malware Config

Extracted

Family

redline

Botnet

jamesfuck

C2

65.108.20.195:6774

Extracted

Family

smokeloader

Version

2020

C2

http://gmpeople.com/upload/

http://mile48.com/upload/

http://lecanardstsornin.com/upload/

http://m3600.com/upload/

http://camasirx.com/upload/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

ANI

C2

45.142.215.47:27643

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://shellloader.top/welcome

Targets

    • Target

      setup_x86_x64_install.exe

    • Size

      7.1MB

    • MD5

      cd08a9c57ce8115745d3a99dec48847d

    • SHA1

      2ea5cea16935f511935a86ea7a2903a44d593247

    • SHA256

      52895feec7505eb0c3a418c93ecaf8559d4d7f9f67c68e3a268c606c069d04cc

    • SHA512

      0ad7757713eca784f6b8c50e1912f91264f0e210dd61e7a6e779390dc2040b6744d552aac120c2ec8d65bfbb048672cb7959d026691ef1037b63e24fec024233

    • 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.

    • Socelars Payload

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Checks for common network interception software

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

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

    • Vidar Stealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Blocklisted process makes network request

    • Creates new service(s)

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Modifies Windows Firewall

    • 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

    • 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 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.

    • 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

2
T1031

New Service

1
T1050

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

BITS Jobs

1
T1197

Privilege Escalation

New Service

1
T1050

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

Peripheral Device Discovery

2
T1120

Collection

Data from Local System

3
T1005

Command and Control

Web Service

1
T1102

Tasks