General

  • Target

    a3d607292f456d782622bdf10ddcaa72.exe

  • Size

    389KB

  • Sample

    240428-lhl5lach7w

  • MD5

    a3d607292f456d782622bdf10ddcaa72

  • SHA1

    e21e9ec6bc6234993591cd2034a019af59e98071

  • SHA256

    8408dcfb8751f971ab0f3f4ec16abc52586a90a507ac8e6be0b02219980758f3

  • SHA512

    147401e381e5ec0a539cc7272721fd0893c6a603b64217539cef925579c32b9be6cd981b68cfbf6a5f484dddc50ddc9c3195172ce00524301206cbb6786df76e

  • SSDEEP

    6144:hjuZSWCTeEVTAHT6HPqHr3aUb/memWBFU/iBHZGI3XCjA77lyJkJZVKM:hjtXVTAHyc3f/U6OiJZhXCsdyJ6ZVKM

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.62

Attributes
  • url_path

    /902e53a07830e030.php

Targets

    • Target

      a3d607292f456d782622bdf10ddcaa72.exe

    • Size

      389KB

    • MD5

      a3d607292f456d782622bdf10ddcaa72

    • SHA1

      e21e9ec6bc6234993591cd2034a019af59e98071

    • SHA256

      8408dcfb8751f971ab0f3f4ec16abc52586a90a507ac8e6be0b02219980758f3

    • SHA512

      147401e381e5ec0a539cc7272721fd0893c6a603b64217539cef925579c32b9be6cd981b68cfbf6a5f484dddc50ddc9c3195172ce00524301206cbb6786df76e

    • SSDEEP

      6144:hjuZSWCTeEVTAHT6HPqHr3aUb/memWBFU/iBHZGI3XCjA77lyJkJZVKM:hjtXVTAHyc3f/U6OiJZhXCsdyJ6ZVKM

    • Detect ZGRat V1

    • Glupteba

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

    • Glupteba payload

    • Modifies firewall policy service

    • SectopRAT

      SectopRAT is a remote access trojan first seen in November 2019.

    • SectopRAT payload

    • Stealc

      Stealc is an infostealer written in C++.

    • Windows security bypass

    • ZGRat

      ZGRat is remote access trojan written in C#.

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

    • Modifies boot configuration data using bcdedit

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Possible attempt to disable PatchGuard

      Rootkits can use kernel patching to embed themselves in an operating system.

    • 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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Registers COM server for autorun

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • UPX packed file

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

    • Windows security modification

    • 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

    • Drops Chrome extension

    • 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

    • Manipulates WinMon driver.

      Roottkits write to WinMon to hide PIDs from being detected.

    • Manipulates WinMonFS driver.

      Roottkits write to WinMonFS to hide directories/files from being detected.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

Scheduled Task/Job

1
T1053

Persistence

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

5
T1112

Impair Defenses

4
T1562

Disable or Modify Tools

2
T1562.001

Disable or Modify System Firewall

1
T1562.004

Virtualization/Sandbox Evasion

1
T1497

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

8
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

8
T1082

Peripheral Device Discovery

2
T1120

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Tasks