Overview

overview

9

Static

static

7

rusk.exe

windows7_x64

9

rusk.exe

windows10_x64

9

Sharing

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General

  • Target

    rusk.exe

  • Size

    3.4MB

  • Sample

    210915-jkxb8sdbhm

  • MD5

    b5faf0605f312ebc4ba7db08e4642530

  • SHA1

    0305e17b9cb3e1b237b2809ffe59d56d61bcde92

  • SHA256

    2a56b3611ae3db3043fd559d18c2c02399a6c7889606c0b9e3fcee4cee3fed1f

  • SHA512

    33043e12e6580dc3fb78a7bfc7106bc63680452dba31015dcac96d8643541a64155c2be00c19994328c965fd4306d8ceb96401bd4a5552ee313c052eb91308eb

Score
9/10
discoveryevasionspywarestealerthemidatrojan

Malware Config

Targets

    • Target

      rusk.exe

    • Size

      3.4MB

    • MD5

      b5faf0605f312ebc4ba7db08e4642530

    • SHA1

      0305e17b9cb3e1b237b2809ffe59d56d61bcde92

    • SHA256

      2a56b3611ae3db3043fd559d18c2c02399a6c7889606c0b9e3fcee4cee3fed1f

    • SHA512

      33043e12e6580dc3fb78a7bfc7106bc63680452dba31015dcac96d8643541a64155c2be00c19994328c965fd4306d8ceb96401bd4a5552ee313c052eb91308eb

    Score
    9/10
    discoveryevasionspywarestealerthemidatrojan

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

      evasion

    • Checks BIOS information in registry

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

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Checks whether UAC is enabled

      evasiontrojan

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

2
T1005

Exfiltration

Command and Control

Impact

Tasks