Managed XDR

rv_-presupuesto-urgente.msg — malware analysis report

File info

Filename
rv_-presupuesto-urgente.msg
File type
CDFV2 Microsoft Outlook Message
File size
655 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
2498046c7d56b584a3bc75fc06335f88afd1a98f
SHA256
0a2ab11b43e5d502e00e839f51f86e31e8ad42e2639a5828593ff8de6db02f12
MD5
6e97c99568de5b86b58476883733f392

Signatures

Execution

T1059 nsis_suspicious_filenames: Nsis contains files with suspicious names

Persistence

T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1055 injection_failed: The attempt to inject into a process has failed

Defense Evasion

T1036.001 invalid_authenticode: Digital signature of the executable file has failed the verification
T1497.001 antivm_generic_cpu: Checks the CPU name, possibly for anti-virtualization
T1497.001 antivm_firmware: Attempts to detect VM by firmware
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1027.002 nsis_archive: One of the packages is NSIS archive
T1027.002 nsis_suspicious_filenames: Nsis contains files with suspicious names
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1055 injection_failed: The attempt to inject into a process has failed

Discovery

T1497.001 antivm_generic_cpu: Checks the CPU name, possibly for anti-virtualization
T1497.001 antivm_firmware: Attempts to detect VM by firmware
T1082 reads_csrss: Attempts to read csrss.exe memory

Other

creates_many_processes: Spawns a lot of processes (over 70)
kills_explorer: Terminates explorer.exe process
creates_in_windows: Creates files in the Windows directory
create_process_failed: Could not start the process
process_crashed: One of the processes has failed
unexpected_exception: Unexpected exception
creates_suspended_process: Creates suspended process
break_limit_exceeded: Warning: function calls limit has been exceeded
creates_exe: Creates executable files in the file system
creates_in_programdata: Creates files in the ProgramData directory
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
pe_overlay: PE file contains overlay