Managed XDR

obfuscated_4aca4ba4e12...54251e4c1919e6fa74.exe (Cobalt Strike) — malware analysis report

File info

Filename
obfuscated_4aca4ba4e12e952c9eefb7d5554a806dcd5a572d1ddcf054251e4c1919e6fa74.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
333 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
ad7df97834377530ead9b2aef53a08e1651535bf
SHA256
d58e05561685264287e61c524b6ab34529bc20892b75a4c3444eac7b8f02677f
MD5
9df4ebc83a38150960bcf7a6e4f8ca81

Malwares

  • Cobalt Strike

Signatures

Privilege Escalation

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_contains_pe: One or several unnamed memory regions are PE files
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
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
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey
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

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
T1016 get_hostname: Attempts to get hostname

Command and Control

T1032 internet_security_options: Sets Internet connections options that are not secure
T1071 internet_security_options: Sets Internet connections options that are not secure
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
ce_info: CobaltStrike Configuration Data found
cobaltstrike_beacon: Memory region specific for CobaltStrike beacon was found
network_bind: Starts servers listening at None
dead_host: Connects to IP addresses that do not respond to requests
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

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