Managed XDR

c-windows-o9zner32m.exe — malware analysis report

File info

Filename
c-windows-o9zner32m.exe
File type
PE32 executable (console) Intel 80386, for MS Windows
File size
681.4 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
b7b5af1d7a747cf79e175709d3a7688f52132556
SHA256
8c461eb35cb99e4c25d2336e379f63ca75f75020f2731a4071dbd93eb8365281
MD5
35b12188c9757956df97bfed30bd5f31

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_disk_size: Checks the amount of free disk space
T1027.002 pe_features: Executable file has PE anomalies (may be false positive)
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions
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

T1552.001 infostealer_bitcoin: Attempts to obtain access to Bitcoin/ALTCoin wallets
T1552 infostealer_mail: Collects personal data from local email clients

Discovery

T1497.001 antivm_disk_size: Checks the amount of free disk space
T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
T1057 process_interest: Enumerates processes
T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions
T1497.001 antivm_queries_computername: Retrieves the computer name
T1135 server_share_info: Retrieves information about each shared resource on a server

Collection

T1114 infostealer_mail: Collects personal data from local email clients
T1074.001 access_recyclebin: Manipulation with recyclebin detected

Impact

T1486 modifies_files2: Cryptolocker indicators detected (100 or more files are modified)
T1486 modifies_files: Cryptolocker indicators detected (renamed 100 or more files)
T1486 ransomware_message: Ransomware indicators detected (possible ransom message creation)

Other

accesses_mailslot: Performs a Mailslot ping, possibly used to get Domain Controller information
create_rpc_bindings: Creates RPC connection
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
writes_data: Writes big amount of data to disk
yara_rules: Static rules
Managed XDR