Managed XDR

5b1f242aee0eabd4dffea0...357af7f20ccd0204_kreuk — malware analysis report

File info

Filename
5b1f242aee0eabd4dffea0fe5f08aba60abf7c8d1e4f7fc7357af7f20ccd0204_kreuk
File type
MS-DOS executable, MZ for MS-DOS
File size
362.3 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
7f852b073a168c25b8a2e59d2aa9759b8d0b08da
SHA256
528080f3f2d3d1ec6b8760e46683426e6b4d937383035a3057bba53a3227c6b8
MD5
1fc7870ed1ee7d75a1b58523d521cf7c

Signatures

Execution

T1047 antivm_wmi: Uses WMI to detect virtual environment
T1047 has_wmi: Executes one or several WMI requests

Privilege Escalation

T1134 opens_process_token: Opens the access token associated with a process

Defense Evasion

T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
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_wmi: Uses WMI to detect virtual environment
T1057 has_wmi: Executes one or several WMI requests
T1082 has_wmi: Executes one or several WMI requests
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
process_crashed: One of the processes has failed
static_pe_duplicate_sections: The PE file structure contains anomalies: duplicate section names
no_graphical_activity: No graphic activity
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
pe_overlay: PE file contains overlay