Managed XDR

anvir.exe — malware analysis report

File info

Filename
anvir.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
10.6 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
c8e00d46715a998a5a60f54fc6289db64cce657a
SHA256
88a326a16761d02d4de116b5b12b637e4467531f50f93c7e8bfb4591a009f348
MD5
cf792cdc0c3d4a5778e436a9e6b36c3b

Signatures

Execution

T1106 susp_callbacks: Suspicious usage of some WinAPI with callbacks

Privilege Escalation

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

T1497.001 antivm_generic_disk: Checks information on disk, possibly for anti-virtualization or checking privileges
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1497 antidbg_strings: Checks for malware analysis tools (specific strings found)
T1497.001 antivm_queries_computername: Retrieves the computer name
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1480 system_default_lang_id_present: Checks the system language
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

T1555.003 cookie_files: Accesses cookie files
T1552 cookie_files: Accesses cookie files
T1003.001 dumps_lsass: Dumps lsass.exe process (probably, to extract credentials)

Discovery

T1497.001 antivm_generic_disk: Checks information on disk, possibly for anti-virtualization or checking privileges
T1518.001 antiav_detectservice: Attempts to detect installed antiviruses by a certain service
T1082 antivm_generic_disk: Checks information on disk, possibly for anti-virtualization or checking privileges
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1497 antidbg_strings: Checks for malware analysis tools (specific strings found)
T1497.001 antivm_queries_computername: Retrieves the computer name
T1082 reads_csrss: Attempts to read csrss.exe memory
T1135 server_share_info: Retrieves information about each shared resource on a server

Command and Control

T1071.001 network_http: Performs HTTP requests
T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Other

modifies_certs: Attempts to generate or modify system certificates
dns_without_resolve: DNS query without a response
create_rpc_bindings: Creates RPC connection
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
open_winlogon_process: Trying to open winlogon process
suricata_alert: Malicious traffic detected
yara_rules: Static rules