Managed XDR

vtdl_1737661763_r5t2wtn5 (Grimagent, Ryuk) — malware analysis report

File info

Filename
vtdl_1737661763_r5t2wtn5
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
264.6 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
e7094996d72afd344efcbd3783359c126646070f
SHA256
32543bae0c3b6160623f89f5286dc42307a83b3519d203dce38bf15ffd208b7e
MD5
09c07ebe886eeb93c4252a458eca2d16

Malwares

  • Grimagent
  • Ryuk

Signatures

Privilege Escalation

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 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
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

T1503 infostealer_browser: Retrieves personal information from local Internet browsers
T1552 infostealer_mail: Collects personal data from local email clients
T1552 infostealer_browser: Retrieves personal information from local Internet browsers
T1552 cookie_files: Accesses cookie files
T1555.003 cookie_files: Accesses cookie files

Discovery

T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
T1497.003 antisandbox_sleep: The process attempted to slow down analysis

Collection

T1114 infostealer_mail: Collects personal data from local email clients

Command and Control

T1071.001 network_cnc_http: Suspicious HTTP traffic
T1071.001 network_http: Performs HTTP requests
T1071.001 wininet_openurl: Performs HTTP/HTTPS-requests using InternetOpenUrl
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Other

yara_rules: Static rules
ip_domains: Identifies an IP address using external resources
dns_without_resolve: DNS query without a response
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
get_policy_info: Retrieves information about a Policy object
pe_overlay: PE file contains overlay
suricata_alert: Malicious traffic detected

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