Managed XDR

silverclient.scr — malware analysis report

File info

Filename
silverclient.scr
File type
PE32+ executable (GUI) x86-64 Mono/.Net assembly, for MS Windows
File size
302 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
9ec84144de1aad5fb298a3b415a734a600024a09
SHA256
9f4ab67ac11a3417a443b267c65021566800603eb8d13e6ab769a9a4bd1d301c
MD5
3db7d600ba83876462a45afd798c83f7

Signatures

Execution

T1059.003 executes_dropped_cmd: Executes dropped batch files

Privilege Escalation

T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
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
T1497.003 antisandbox_sleep_utilities: Uses Windows utilities for pausing the execution
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1036 system_filename: Created a file named as a common system file
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Credential Access

T1003.001 dumps_lsass: Dumps lsass.exe process (probably, to extract credentials)

Discovery

T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1497.003 antisandbox_sleep_utilities: Uses Windows utilities for pausing the execution

Other

yara_rules: Static rules
static_pe_anomaly: The PE file structure contains anomalies
copies_self: Creates a copy of itself
creates_exe: Creates executable files in the file system
executes_dropped_exe: Executes dropped exe files
creates_suspended_process: Creates suspended process
dotnet_import_unmanaged_code: Dotnet program statically imports unmanaged functions/modules
dotnet_obfuscated: Dotnet program is potentially obfuscated
test_check_service: Starts services
open_winlogon_process: Trying to open winlogon process
dotnet_suspicious_entrypoint: Dotnet program has suspicious entrypoint
dotnet_downloader_possible_network_problem: Dotnet program possibly has network problem