General

  • Target

    spoofer.exe

  • Size

    3.5MB

  • Sample

    241006-nwhqfasbll

  • MD5

    47b557bb2b62fa4fb96cb38228ca7ff0

  • SHA1

    3b2d5f2cee1ec93bedbbdc6b79156a54e22553a1

  • SHA256

    0df3031fb66f7009948c1d5ffd11d7ea0efadd0cd0568a8bd1814ab54477aa8b

  • SHA512

    aa19b293fe9b79602c79cde8efdd3b8159e60abd70244647a1e23cfb5fdab5fd60d46d5c85f5631f57ce488b055cd2acbd2d02a9c3371a1bdf9f64ae6c88f407

  • SSDEEP

    49152:WXzhpDtKSK1cb8PGK+Tfuqmpc3elWo8GnQAsYZEV9gSFTFwnY/:WXzhW148Pd+Tf1mpcOldJQ3/V1

Malware Config

Targets

    • Target

      spoofer.exe

    • Size

      3.5MB

    • MD5

      47b557bb2b62fa4fb96cb38228ca7ff0

    • SHA1

      3b2d5f2cee1ec93bedbbdc6b79156a54e22553a1

    • SHA256

      0df3031fb66f7009948c1d5ffd11d7ea0efadd0cd0568a8bd1814ab54477aa8b

    • SHA512

      aa19b293fe9b79602c79cde8efdd3b8159e60abd70244647a1e23cfb5fdab5fd60d46d5c85f5631f57ce488b055cd2acbd2d02a9c3371a1bdf9f64ae6c88f407

    • SSDEEP

      49152:WXzhpDtKSK1cb8PGK+Tfuqmpc3elWo8GnQAsYZEV9gSFTFwnY/:WXzhW148Pd+Tf1mpcOldJQ3/V1

    • Modifies visiblity of hidden/system files in Explorer

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

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

    • Downloads MZ/PE file

    • 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

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

    • 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.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks