Managed XDR

svchos (FlawedAmmyy) — malware analysis report

File info

Filename
svchos
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
125.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
927fb281bb15f52e0e641e7933d3a21a86919ae0
SHA256
ffa139ab332d574970c0cc5134c68188c3e33bd604d1b96a912c3ffa359ba3b0
MD5
46611162e1f49c200957bd5596622b25

Malwares

  • FlawedAmmyy

Signatures

Privilege Escalation

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 packer_entropy: Probably contains compressed or encrypted data
T1070 stealth_window: A process created a hidden window
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

T1555.003 cookie_files: Accesses cookie files
T1552 cookie_files: Accesses cookie files

Discovery

T1057 process_interest: Enumerates processes

Command and Control

T1071.001 wininet_openurl: Performs HTTP/HTTPS-requests using InternetOpenUrl

Impact

T1489 net_stop: Stops services through the use of net stop

Other

yara_rules: Static rules
dead_host: Connects to IP addresses that do not respond to requests
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
break_limit_exceeded: Warning: function calls limit has been exceeded
get_policy_info: Retrieves information about a Policy object
checktokenmembership: Checks user token with CheckTokenMembership call

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