Managed XDR

c-windows-u3c9fm.exe — malware analysis report

File info

Filename
c-windows-u3c9fm.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
4.6 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
f215b6b60ea881f945ecbd874dfb13284e2fb6b5
SHA256
a3e2d69a39bd85195f3dba718a79aefaa5fd049a8e30b411d23e10d1d563b9a3
MD5
e94b0c91de3d2b4e13a9f25cd6338857

Signatures

Execution

T1569.002 persistence_service: Starts newly created service
T1047 antivm_wmi: Uses WMI to detect virtual environment
T1047 has_wmi: Executes one or several WMI requests

Persistence

T1543.003 creates_service: Creates a service, that will start automatically
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1543.003 creates_service: Creates a service, that will start automatically
T1574 dropper_dll: Creates DLL, which is then loaded into the 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

Defense Evasion

T1036.001 invalid_authenticode: Digital signature of the executable file has failed the verification
T1497.001 antivm_generic_bios: Checks the BIOS version, possibly for anti-virtualization
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1497.001 antivm_network_adapters: Checks NIC addresses
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
T1497.001 antivm_generic_msi: Checks installed MSI pakages, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.003 antisandbox_sleep: The process attempted to slow down analysis

Discovery

T1033 sam_users_discovery: Enumerates users or groups in system with SAM API
T1497.001 antivm_generic_bios: Checks the BIOS version, possibly for anti-virtualization
T1087 has_wmi: Executes one or several WMI requests
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1057 has_wmi: Executes one or several WMI requests
T1082 has_wmi: Executes one or several WMI requests
T1497.001 antivm_network_adapters: Checks NIC addresses
T1087.001 local_account_discovery: Enumerates local accounts
T1049 list_ts_rdp_sessions: Lists ts/rdp sessions
T1497.001 antivm_generic_msi: Checks installed MSI pakages, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.003 antisandbox_sleep: The process attempted to slow down analysis

Exfiltration

T1022 encrypts_pc_info: Collects and encrypts information about the computer (possibly for exfiltration)

Other

prevents_safeboot: Prevents booting in Safe Mode
creates_in_windows: Creates files in the Windows directory
creates_exe: Creates executable files in the file system
executes_dropped_exe: Executes dropped exe files
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
has_pdb: This executable file has a PDB path
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
pe_overlay: PE file contains overlay
yara_rules: Static rules
ce_info: ScreenConnect Configuration Data found
Managed XDR