Managed XDR

vs_virus_varist_clean_478.eml — malware analysis report

File info

Filename
vs_virus_varist_clean_478.eml
File type
SMTP mail, ASCII text, with very long lines
File size
2 MB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
dbc81725652dcd673b9041d21b516cc6888ef196
SHA256
15d18e8bd00498e6cf3199133e282d3afbb81880db6325755d0dada59e39ea32
MD5
e6a08173c3bc1f1f8a411002786973dd

Signatures

Privilege Escalation

T1055 injection_thread: Code injection to a remote process using CreateRemoteThread or NtQueueApcThread
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1055.012 injection_runpe: Injects code into another process
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
T1055 injection_failed: The attempt to inject into a process has failed

Defense Evasion

T1218 bypass_dev_utils: Executing .NET utility in a suspended state, potentially for injection
T1055 injection_thread: Code injection to a remote process using CreateRemoteThread or NtQueueApcThread
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1055.012 injection_runpe: Injects code into another process
T1564.004 removes_zoneid_ads: Attempts to hide the indications that the file was downloaded from the Internet
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
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
T1055 injection_failed: The attempt to inject into a process has failed

Discovery

T1497.003 antisandbox_sleep: The process attempted to slow down analysis

Other

yara_rules: Static rules
unpacker_wrong_base: Possibly, an error occured in the file unpacker
page_noaccess: Disables access to a memory region
no_graphical_activity: No graphic activity
dotnet_suspicious_resources_names: Dotnet program has suspicious resources names
creates_suspended_process: Creates suspended process
break_limit_exceeded: Warning: function calls limit has been exceeded
dotnet_obfuscated: Dotnet program is potentially obfuscated
test_check_service: Starts services
dotnet_suspicious_entrypoint: Dotnet program has suspicious entrypoint
dotnet_downloader_possible_network_problem: Dotnet program possibly has network problem