General

  • Target

    fd42e618223f510d694c5fb2f8ecbc1a88cabf003bcf20da6227da30a1352a0f

  • Size

    579KB

  • Sample

    240526-p6p3yafc65

  • MD5

    a991da123f34074f2ee8ea0d798990f9

  • SHA1

    3988195503348626e8f9185747a216c8e7839130

  • SHA256

    fd42e618223f510d694c5fb2f8ecbc1a88cabf003bcf20da6227da30a1352a0f

  • SHA512

    1f958cacb820833ea8b5ac2d9ca7f596625e688f8f6b6e3ab6f27aa3b25b8c9e5b57e1eed532a8d2519da6c1b41492eb8ac930fc25eaf2be2f344c2f32e81a49

  • SSDEEP

    12288:ntSXI9aVcVXyB7qngm/krqaeAPu3YNEYId/yhlJQNXU:neI9aucNSk2H+yCId/iQC

Malware Config

Targets

    • Target

      fd42e618223f510d694c5fb2f8ecbc1a88cabf003bcf20da6227da30a1352a0f

    • Size

      579KB

    • MD5

      a991da123f34074f2ee8ea0d798990f9

    • SHA1

      3988195503348626e8f9185747a216c8e7839130

    • SHA256

      fd42e618223f510d694c5fb2f8ecbc1a88cabf003bcf20da6227da30a1352a0f

    • SHA512

      1f958cacb820833ea8b5ac2d9ca7f596625e688f8f6b6e3ab6f27aa3b25b8c9e5b57e1eed532a8d2519da6c1b41492eb8ac930fc25eaf2be2f344c2f32e81a49

    • SSDEEP

      12288:ntSXI9aVcVXyB7qngm/krqaeAPu3YNEYId/yhlJQNXU:neI9aucNSk2H+yCId/iQC

    • Modifies firewall policy service

    • PrivateLoader

      PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

    • UAC bypass

    • Windows security bypass

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

    • Modifies boot configuration data using bcdedit

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies Installed Components in the registry

    • Sets service image path in registry

    • 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

    • Modifies system executable filetype association

    • 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.

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Windows security modification

    • 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

    • Drops Chrome extension

    • Drops desktop.ini file(s)

    • 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.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • 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

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

4
T1547

Registry Run Keys / Startup Folder

4
T1547.001

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Scheduled Task/Job

1
T1053

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

4
T1547

Registry Run Keys / Startup Folder

4
T1547.001

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

10
T1112

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

3
T1562

Disable or Modify Tools

3
T1562.001

Virtualization/Sandbox Evasion

1
T1497

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

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

Software Discovery

1
T1518

Security Software Discovery

1
T1518.001

Peripheral Device Discovery

2
T1120

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Impact

Inhibit System Recovery

1
T1490

Tasks