General

  • Target

    solara-bootstrapper

  • Size

    4KB

  • Sample

    240801-1gvgxa1fme

  • MD5

    3971dec8d72e1e6c0725a21dff3eb150

  • SHA1

    6518044ae01d63bf77d9e0f11b205be27ace8b84

  • SHA256

    878e0acded4880f191963902e2c1a3084c2170c355d74ddf8778e66f92cac053

  • SHA512

    197b21ee090a1873daa8ef0cd14c4a5c37f53e2a257a5ecd2c7322dc107d8dd29eb16db8e70a584e0a8f59fb8b62322d67d4f153f17e5da1c9e9901a2b6295f2

  • SSDEEP

    96:1j9jwIjYj5jDK/D5DMF+C8/ZqXKHvpIkdNwrRU9PaQxJbGD:1j9jhjYj9K/Vo+n8aHvFdNwry9ieJGD

Malware Config

Targets

    • Target

      solara-bootstrapper

    • Size

      4KB

    • MD5

      3971dec8d72e1e6c0725a21dff3eb150

    • SHA1

      6518044ae01d63bf77d9e0f11b205be27ace8b84

    • SHA256

      878e0acded4880f191963902e2c1a3084c2170c355d74ddf8778e66f92cac053

    • SHA512

      197b21ee090a1873daa8ef0cd14c4a5c37f53e2a257a5ecd2c7322dc107d8dd29eb16db8e70a584e0a8f59fb8b62322d67d4f153f17e5da1c9e9901a2b6295f2

    • SSDEEP

      96:1j9jwIjYj5jDK/D5DMF+C8/ZqXKHvpIkdNwrRU9PaQxJbGD:1j9jhjYj9K/Vo+n8aHvFdNwry9ieJGD

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

    • Downloads MZ/PE file

    • Event Triggered Execution: Image File Execution Options Injection

    • 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.

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Blocklisted process makes network request

    • 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

    • 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.

    • Network Share Discovery

      Attempt to gather information on host network.

    • Checks system information in the registry

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

    • Drops file in System32 directory

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks