Managed XDR

quasar-v1.3.0.0.zip (QuasarRat) — malware analysis report

File info

Filename
quasar-v1.3.0.0.zip
File type
Zip archive data, at least v1.0 to extract
File size
635.9 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
972090ba8a2b7f6c1232afa6fcb40ed899dabef1
SHA256
b052864d1e5dc9dcbe610457f3a8762c78412425aae1308616364cc08ed40b0f
MD5
2fad404265de22a53b02c40705ee886e

Malwares

  • QuasarRat

Signatures

Persistence

T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1574 dropper_dll: Creates DLL, which is then loaded into the 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

T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1497.001 antivm_network_adapters: Checks NIC addresses
T1574 dropper_dll: Creates DLL, which is then loaded into the 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

Discovery

T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1497.001 antivm_network_adapters: Checks NIC addresses

Other

yara_rules: Static rules
dotnet_suspicious_resources_names: Dotnet program has suspicious resources names
has_pdb: This executable file has a PDB path
dotnet_import_unmanaged_code: Dotnet program statically imports unmanaged functions/modules
break_limit_exceeded: Warning: function calls limit has been exceeded
dotnet_obfuscated: Dotnet program is potentially obfuscated
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
dotnet_downloader_possible_network_problem: Dotnet program possibly has network problem
dotnet_suspicious_module_name: Dotnet program has suspicious module name
many_files_in_archive: The archive contains more than 5 files

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