Overview

overview

9

Static

static

8

REG.BR2.CG...̀.msi

windows7_x64

9

Sharing

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General

  • Target

    REG.BR2.CGDCZJCFUNGBYDVNGJXGQIXMFMSMDFÒ.msi

  • Size

    282KB

  • Sample

    210709-vpevtdejtx

  • MD5

    ccf235e43d3c30cada1d3cbc1e44ba51

  • SHA1

    6040b0ad5a7bcdafefb94b7d515119ee449b16d7

  • SHA256

    f905e9c4eddf8ce1d56241b41ba4bc68e01fa3898844d8e833980320ac22c1ef

  • SHA512

    7d079684f317c783e3754f6bd1ebf015492e86ff67b715a632151acef736f02787cda8e2789bb2cff8775a0f150b1cae5580f85f99eed5b6adb74adbefb13a58

Score
9/10
bootkitevasionmacropersistencethemidatrojanxlm

Malware Config

Targets

    • Target

      REG.BR2.CGDCZJCFUNGBYDVNGJXGQIXMFMSMDFÒ.msi

    • Size

      282KB

    • MD5

      ccf235e43d3c30cada1d3cbc1e44ba51

    • SHA1

      6040b0ad5a7bcdafefb94b7d515119ee449b16d7

    • SHA256

      f905e9c4eddf8ce1d56241b41ba4bc68e01fa3898844d8e833980320ac22c1ef

    • SHA512

      7d079684f317c783e3754f6bd1ebf015492e86ff67b715a632151acef736f02787cda8e2789bb2cff8775a0f150b1cae5580f85f99eed5b6adb74adbefb13a58

    Score
    9/10
    bootkitevasionpersistencethemidatrojan

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

      evasion

    • Blocklisted process makes network request

    • Executes dropped EXE

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Drops startup file

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Enumerates connected drives

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

    • 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.

      bootkitpersistence

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Bootkit

1
T1067

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks