Managed XDR

teamviewer.exe (Sality) — malware analysis report

File info

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

Environment

win7/x86 en

Hashes

SHA1
4a677de8ea12198c51f03d3ee1b30d34fa1ac243
SHA256
689f42ceb7dc505ff513696e2072dcf6f77376bef92fa9794806fde289ec9496
MD5
9d7e59cb0f7931189e3b35098d8ea30c

Malwares

  • Sality

Signatures

Initial Access

T1091 spreading_autoruninf: Creates an autorun.inf file

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 injection_thread: Code injection to a remote process using CreateRemoteThread or NtQueueApcThread
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

Defense Evasion

T1055 injection_thread: Code injection to a remote process using CreateRemoteThread or NtQueueApcThread
T1055.012 injection_runpe: Injects code into another process
T1562.004 bypass_firewall: Changes local firewall configuration and policies
T1562.001 disables_security: Disables Windows Security options
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1112 stealth_hiddenreg: Attempts to change Explorer settings so that hidden files won't be displayed
T1027.002 unnamed_memory_regions_contains_pe: One or several unnamed memory regions are PE files
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1564.001 stealth_file: Creates hidden or system files
T1562 modify_security_center_warnings: Attempts to modify or disable Security Center notifications
T1562 disables_uac: Disable UAC
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions
T1497.001 antivm_queries_computername: Retrieves the computer name
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

T1552 infostealer_browser: Retrieves personal information from local Internet browsers
T1503 infostealer_browser: Retrieves personal information from local Internet browsers
T1555.003 cookie_files: Accesses cookie files
T1552 cookie_files: Accesses cookie files

Discovery

T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1057 process_interest: Enumerates processes
T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions
T1497.001 antivm_queries_computername: Retrieves the computer name

Lateral Movement

T1091 spreading_autoruninf: Creates an autorun.inf file

Command and Control

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

Other

yara_rules: Static rules
creates_exe: Creates executable files in the file system
rat_teamviewer: TeamViewer indicators detected (registry or mutexes)
prevents_safeboot: Prevents booting in Safe Mode
rat_teamviewer_files: TeamViewer indicators detected (files)
dns_without_resolve: DNS query without a response
create_rpc_bindings: Creates RPC connection
has_pdb: This executable file has a PDB path
add_base64_to_registry: Writes Base64 encoded data to registry
get_policy_info: Retrieves information about a Policy object
checktokenmembership: Checks user token with CheckTokenMembership call

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