Managed XDR

wincoresvc.exe (Bazar Loader) — malware analysis report

File info

Filename
wincoresvc.exe
File type
PE32+ executable (GUI) x86-64, for MS Windows
File size
289 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
6ca8cf2b0fed62837fb9a7fa0d37596ee9439f89
SHA256
b28a4883132904fce53b901849539677ddb7eef08efccde9d673b217aa6ae525
MD5
0dfec9e94f0702ce1996de5e338fb5e7

Malwares

  • Bazar Loader

Signatures

Privilege Escalation

T1134 opens_process_token: Opens the access token associated with a process

Defense Evasion

T1497.001 antivm_disk_size: Checks the amount of free disk space
T1027.002 pe_features: Executable file has PE anomalies (may be false positive)
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
T1134 opens_process_token: Opens the access token associated with a process

Credential Access

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

Discovery

T1497.001 antivm_disk_size: Checks the amount of free disk space
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

Command and Control

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

Other

yara_rules: Static rules
network_bind: Starts servers listening at None
no_graphical_activity: No graphic activity
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services

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