Managed XDR

phvnc.exe — malware analysis report

File info

Filename
phvnc.exe
File type
PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
File size
61 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
556d98f0c1d422affb5973661ac632520fa45518
SHA256
9d19c78faa95e93a28c06b4c852a6519a66ff2da11a828727ecff34983ae0abc
MD5
20c339f7b820bf80e40bc82c2a1d48a5

Signatures

Execution

T1047 has_wmi: Executes one or several WMI requests

Persistence

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup

Privilege Escalation

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1055.012 injection_runpe: Injects code into another process
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
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

Defense Evasion

T1055.002 inject_write_pe: Writes PE file to another process's memory
T1055.012 injection_runpe: Injects code into another process
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name
T1055 injection_failed: The attempt to inject into a process has failed
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Credential Access

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)

Discovery

T1518.001 wmi_check_av: Uses WMI to check for installed antivirus software
T1518 locates_browser: Attempts to identify where browsers are installed
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name

Collection

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)

Other

yara_rules: Static rules
unpacker_wrong_base: Possibly, an error occured in the file unpacker
dead_host: Connects to IP addresses that do not respond to requests
no_graphical_activity: No graphic activity
dotnet_suspicious_resources_names: Dotnet program has suspicious resources names
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
dotnet_import_unmanaged_code: Dotnet program statically imports unmanaged functions/modules
access_recyclebin: Manipulation with recyclebin detected
dotnet_obfuscated: Dotnet program is potentially obfuscated
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
dotnet_use_suspicious_functions: Dotnet program potentially uses suspicious functions/modules
dotnet_suspicious_module_name: Dotnet program has suspicious module name
Managed XDR