Managed XDR

raid-kostada2-outputs_...29fce75090e02c865f04f3 (STOP Ransomware) — malware analysis report

File info

Filename
raid-kostada2-outputs_reduced_dataset-pesidious_1772633321-mutated_bazaar.2023.01__heur-trojan-ransom.win32.stop_stop.gen-df5e491dad0e019222bcf92bb6a51033355b8ea72729fce75090e02c865f04f3
File type
MS-DOS executable, MZ for MS-DOS
File size
1.5 MB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
993db00ed81ad0f22bfd6beaed0033e141e0b5ab
SHA256
44ffc876a8df7fdb2aaeb28c9f135892655c8ecd9f8aa4e5390d206a1d549787
MD5
45edb339d7b5d4937c4d545113d1db88

Malwares

  • STOP Ransomware

Signatures

Execution

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1059.007 bad_js: Suspicious Javascript file

Persistence

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler

Privilege Escalation

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1055.012 injection_runpe: Injects code into another process
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

T1055.002 inject_write_pe: Writes PE file to another process's memory
T1055.012 injection_runpe: Injects code into another process
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1222 icacls: May obtain or change Discretionary access control lists (DACLs)
T1027.002 pe_features: Executable file has PE anomalies (may be false positive)
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1070 stealth_window: A process created a hidden window
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey

Credential Access

T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey

Command and Control

T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp
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
suricata_alert: Malicious traffic detected
copies_self: Creates a copy of itself
ip_domains: Identifies an IP address using external resources
creates_exe: Creates executable files in the file system
dns_without_resolve: DNS query without a response
static_pe_duplicate_sections: The PE file structure contains anomalies: duplicate section names
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
origin_langid: Unconventional language of the executable file
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
open_winlogon_process: Trying to open winlogon process
js_suspicious: Suspicious javascript

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Managed XDR