General

  • Target

    clould.jpg

  • Size

    307KB

  • Sample

    240329-tjzq3scf52

  • MD5

    1e34da53600992f57e51befbf50595a0

  • SHA1

    b1a22dfb797d1d920fd8a7085f0ef94467dc916b

  • SHA256

    f4c058b1b0384910e03e9c9cbb484fc2a8daf74638a4872c2685751ed9b9e0d8

  • SHA512

    c92b4f95cbb9e874b660834a6a5e1092e0c873d650a6ed3e9606715f99e7f4f9e2d484f8d4e20b8d6cb4ede8549f0f00779ced7c016d73ad8bea960c0225280c

  • SSDEEP

    6144:1oJ/dIN2OPkjYTAGPzVsZBCLgwtx2i1gA6Lugy0XtPGUBkOd:1kqcjYTAFBCUwH26gA6LugfVr

Malware Config

Targets

    • Target

      clould.jpg

    • Size

      307KB

    • MD5

      1e34da53600992f57e51befbf50595a0

    • SHA1

      b1a22dfb797d1d920fd8a7085f0ef94467dc916b

    • SHA256

      f4c058b1b0384910e03e9c9cbb484fc2a8daf74638a4872c2685751ed9b9e0d8

    • SHA512

      c92b4f95cbb9e874b660834a6a5e1092e0c873d650a6ed3e9606715f99e7f4f9e2d484f8d4e20b8d6cb4ede8549f0f00779ced7c016d73ad8bea960c0225280c

    • SSDEEP

      6144:1oJ/dIN2OPkjYTAGPzVsZBCLgwtx2i1gA6Lugy0XtPGUBkOd:1kqcjYTAFBCUwH26gA6LugfVr

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Uses Session Manager for persistence

      Creates Session Manager registry key to run executable early in system boot.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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.

    • Registers COM server for autorun

    • Windows security modification

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • Checks installed software on the system

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

    • 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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks