Managed XDR

c-users-user-appdata-l...l-temp-mepc748.tmp.exe (Bazar Loader) — malware analysis report

File info

Filename
c-users-user-appdata-local-temp-mepc748.tmp.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
510 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
e3b32b7402befb306a4fbc0723cd465e67efd6a5
SHA256
1cf7aa2108e70d7e2c1d24d17d154f09ec65c99a3e6f63643d11987a56452557
MD5
101017a9e57b277a21b9a47b36ae97cb

Malwares

  • Bazar Loader

Signatures

Persistence

T1098 changes_user_password: Attempts to change user password
T1098 add_user_to_admin: Adds an elevated user to a group
T1136.001 add_user: Creates a new Windows user account
T1098 activate_guest: Activates a guest user
T1098 add_user_to_group: Adds user to a group
T1543.003 persistence_services: Modifies Services registry key
T1574.011 persistence_services: Modifies Services registry key
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1055.012 injection_runpe: Injects code into another process
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
T1098 changes_user_password: Attempts to change user password
T1098 add_user_to_admin: Adds an elevated user to a group
T1574.011 persistence_services: Modifies Services registry key
T1543.003 persistence_services: Modifies Services registry key
T1098 activate_guest: Activates a guest user
T1098 add_user_to_group: Adds user to a group
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
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Defense Evasion

T1055.012 injection_runpe: Injects code into another process
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
T1564.001 stealth_file: Creates hidden or system files
T1027.002 unnamed_memory_regions_contains_pe: One or several unnamed memory regions are PE files
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1112 stealth_hidden_extension: Attempts to change system settings so that file extensions won't be displayed
T1112 stealth_hiddenreg: Attempts to change Explorer settings so that hidden files won't be displayed
T1574.011 persistence_services: Modifies Services registry key
T1070 stealth_window: A process created a hidden window
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
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1480 system_default_lang_id_present: Checks the system language

Credential Access

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)

Discovery

T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
T1518 locates_browser: Attempts to identify where browsers are installed
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1016 get_hostname: Attempts to get hostname

Collection

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)

Command and Control

T1095 network_icmp: Creates ICMP traffic
T1071.001 network_http: Performs HTTP requests

Impact

T1531 changes_user_password: Attempts to change user password

Other

creates_in_windows: Creates files in the Windows directory
copies_self: Creates a copy of itself
creates_net_share: Creates net share (may be used for data exfiltration)
creates_exe: Creates executable files in the file system
dead_host: Connects to IP addresses that do not respond to requests
executes_dropped_exe: Executes dropped exe files
unexpected_exception: Unexpected exception
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
access_recyclebin: Manipulation with recyclebin detected
checktokenmembership: Checks user token with CheckTokenMembership call
writes_data: Writes big amount of data to disk
yara_rules: Static rules

Related reports

Managed XDR