Managed XDR

message17156851982054956088.eml (Cobalt Strike) — malware analysis report

File info

Filename
message17156851982054956088.eml
File type
SMTP mail, ASCII text, with very long lines, with CRLF line terminators
File size
47.4 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
3f4577192112efdf3a0dc956dd49bce4d43886b6
SHA256
ea6a9e8a62c816b71593a4f063cefeaa2e034c2fce45b5f7b03e4ff28792009b
MD5
5facd6d79a20249fd58c29f9dc98dfe2

Malwares

  • Cobalt Strike

Signatures

Execution

T1059.001 suspicious_powershell: Suspicious document behaviour (creates powershell process)
T1203 exploit_CVE_2017_11882: Exploits CVE-2017-11882 vulnerability
T1203 office_exploit_http: The document exhibits suspicious behaviour (performs HTTP requests)
T1059 powershell_cmd_longcommandline: Suspiciously long commandline
T1059.001 suspicious_process: Spawns a suspicious process
T1064 office_macros: The document contains macro
T1064 office_macros_strings: Feature lines found in document macro
T1204.002 mimics_extension: Attempts to mimic the file extension
T1059.001 url_cmdline: Cmdline of process contains URL
T1059.003 url_cmdline: Cmdline of process contains URL

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

T1218 suspicious_cmdline: Executes a suspicious command
T1221 office_attached_template: Office file downloads a suspicious template from the Internet
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity
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
T1064 office_macros: The document contains macro
T1064 office_macros_strings: Feature lines found in document macro
T1036 mimics_extension: Attempts to mimic the file extension

Credential Access

T1555.003 cookie_files: Accesses cookie files
T1552 cookie_files: Accesses cookie files

Discovery

T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity
T1135 server_share_info: Retrieves information about each shared resource on a server

Command and Control

T1071.001 office_exploit_http: The document exhibits suspicious behaviour (performs HTTP requests)
T1071.004 office_exploit_dns: The document exhibits suspicious behaviour (performs DNS requests)
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

yara_rules: Static rules
suricata_alert: Malicious traffic detected
shellcode_wininet: Wininet-shellcode behaviour detected
multiple_useragents: Uses more than one unique User-Agent
suspicious_process_network: Unusual process network activity detected
creates_doc: Creates (office) documents in the file system
dead_host: Connects to IP addresses that do not respond to requests
process_crashed: One of the processes has failed
unexpected_exception: Unexpected exception
network_powershell: Powershell process network connection detected
create_rpc_bindings: Creates RPC connection
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
antisandbox_check_graphics_card: Uses CreateDXGIFactory, potentially to detect graphics card

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