Managed XDR

nursultan.rar — malware analysis report

File info

Filename
nursultan.rar
File type
RAR archive data, v5
File size
6.3 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
e6a4edbb66094925c66e2c77304fa1c2372585f4
SHA256
dd91e07f5f40ec120fb155e2fe7cd514bb74615b702c2e8d7263788e62ae5383
MD5
3fcc9e9ade41794243782a224bf61f31

Signatures

Execution

T1059.005 obfuscated_vbe: Detected obfuscated VBE script
T1059.003 suspicious_process: Spawns a suspicious process
T1059.003 executes_dropped_cmd: Executes dropped batch files
T1059.005 obfuscated_vbs: Detected obfuscated VBS

Persistence

T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1574 dropper_dll: Creates DLL, which is then loaded into the process
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

Defense Evasion

T1027 obfuscated_vbe: Detected obfuscated VBE script
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1027 obfuscated_vbs: Detected obfuscated VBS
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.001 antivm_queries_computername: Retrieves the computer name
T1574 dropper_dll: Creates DLL, which is then loaded into the process
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

Discovery

T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.001 antivm_queries_computername: Retrieves the computer name

Other

yara_rules: Static rules
creates_exe: Creates executable files in the file system
executes_dropped_exe: Executes dropped exe files
only_exec_in_archive: The archive contains only an executable file
process_crashed: One of the processes has failed
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
has_pdb: This executable file has a PDB path
creates_suspended_process: Creates suspended process
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
pe_overlay: PE file contains overlay