Managed XDR

c-users-user-appdata-l...ocal-temp-ybuffopp.exe — malware analysis report

File info

Filename
c-users-user-appdata-local-temp-ybuffopp.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
12 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
1b97b0ab3a0d98af7ae2ca8d35d7b98512d99481
SHA256
2bb999129e172b89280d3b7953c6388f81cfad72cd6be8f15f02f56a882bb405
MD5
4e8941341fb959bd66a2370d029d33c0

Signatures

Execution

T1569.002 persistence_service: Starts newly created service

Persistence

T1543.003 creates_service: Creates a service, that will start automatically

Privilege Escalation

T1543.003 creates_service: Creates a service, that will start automatically
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
T1562.004 firewall_add_rule: Modifies Firewall rules
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1070 stealth_window: A process created a hidden window

Discovery

T1497.001 antivm_disk_size: Checks the amount of free disk space
T1082 uses_windows_utilities: Uses Windows utilities for basic Windows functionality

Other

yara_rules: Static rules
creates_in_windows: Creates files in the Windows directory
creates_exe: Creates executable files in the file system
no_graphical_activity: No graphic activity
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