Managed XDR

ransomware_stopcrypt_2020_713.exe — malware analysis report

File info

Filename
ransomware_stopcrypt_2020_713.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
1 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
7aa63749bca19e1590a97e40a712b229bfc9db5e
SHA256
cfe7821cfdb906b5c92074e490fb3c7e146a5d4b18993405da150f6e5c350cf7
MD5
17f43218ef70d63522fb7658a1734660

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

T1497.001 antivm_generic_cpu: Checks the CPU name, possibly for anti-virtualization
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
T1497.001 antivm_generic_video: Checks information about video adapters in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name
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

T1552 infostealer_browser: Retrieves personal information from local Internet browsers
T1503 infostealer_browser: Retrieves personal information from local Internet browsers
T1552.001 infostealer_bitcoin: Attempts to obtain access to Bitcoin/ALTCoin wallets
T1552 infostealer_mail: Collects personal data from local email clients
T1555.003 cookie_files: Accesses cookie files
T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager
T1552 cookie_files: Accesses cookie files

Discovery

T1497.001 antivm_generic_cpu: Checks the CPU name, possibly for anti-virtualization
T1518.001 antiav_detectfile: Attempts to detect installed antiviruses by a certain directory
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1518 recon_programs: Collects information about installed programs
T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
T1497.001 antivm_generic_video: Checks information about video adapters in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name

Collection

T1113 screenshot_file: Possibly, makes a screenshot and saves it to a file
T1114 infostealer_mail: Collects personal data from local email clients

Command and Control

T1568.002 dga_domains: Connects to DGA domains
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Other

yara_rules: Static rules
dns_without_resolve: DNS query without a response
static_pe_duplicate_sections: The PE file structure contains anomalies: duplicate section names
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
has_pdb: This executable file has a PDB path
origin_langid: Unconventional language of the executable file
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
suricata_alert: Malicious traffic detected