General

  • Target

    de2912f0955e066d268cb9ea411c31d49878d94be3ce444e1e33ef00b0d14407

  • Size

    273KB

  • Sample

    220919-sl557secg4

  • MD5

    7ca8de8b718658776c906332916250ba

  • SHA1

    e0ca4799fb5d6676feba60a1f2d16b8d65f7c1cc

  • SHA256

    de2912f0955e066d268cb9ea411c31d49878d94be3ce444e1e33ef00b0d14407

  • SHA512

    92e7b5386d8b9100f45f84aefed3b92ceee2c31f41774848b29a9d8b88665933c4ce11d4900702b48c03ddf89ca0cea8adf65c395c0e6ba7cd8c02c935436374

  • SSDEEP

    6144:J7tx6zCLmanpAueJcjtwTNqi0d/RigavwVfM:J7tx6eKanpAueOjeTNGd8

Malware Config

Targets

    • Target

      de2912f0955e066d268cb9ea411c31d49878d94be3ce444e1e33ef00b0d14407

    • Size

      273KB

    • MD5

      7ca8de8b718658776c906332916250ba

    • SHA1

      e0ca4799fb5d6676feba60a1f2d16b8d65f7c1cc

    • SHA256

      de2912f0955e066d268cb9ea411c31d49878d94be3ce444e1e33ef00b0d14407

    • SHA512

      92e7b5386d8b9100f45f84aefed3b92ceee2c31f41774848b29a9d8b88665933c4ce11d4900702b48c03ddf89ca0cea8adf65c395c0e6ba7cd8c02c935436374

    • SSDEEP

      6144:J7tx6zCLmanpAueJcjtwTNqi0d/RigavwVfM:J7tx6eKanpAueOjeTNGd8

    • Detects Smokeloader packer

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

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

    • Downloads MZ/PE file

    • Executes dropped EXE

    • UPX packed file

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

    • Checks BIOS information in registry

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

    • Loads dropped DLL

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • 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 cryptocurrency files/wallets, possible credential harvesting

    • 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

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Tasks