Managed XDR

c-users-user-appdata-roaming-tisvive (Tinba, Smoke Bot) — malware analysis report

File info

Filename
c-users-user-appdata-roaming-tisvive
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
206 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
cec8932c31e369118a7928d58bd6a8142afdecd8
SHA256
6b709b3c69557a26f9ef0400929e18312fe87e5ffc49051cf781c5e9b65cc50d
MD5
d672139c61dd00d2ee5c00b3baf88def

Malwares

  • Tinba
  • Smoke Bot

Signatures

Execution

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1059.003 executes_dropped_cmd: Executes dropped batch files
T1106 susp_callbacks: Suspicious usage of some WinAPI with callbacks

Persistence

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1542.003 bootkit_like_low_level_disk_access: Bootkit-like low level disk access

Privilege Escalation

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
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

T1070.004 deletes_self: Moves to different location or removes the original executable file
T1006 direct_disc_access: Direct disk access has been detected
T1497.001 antivm_generic_disk: Checks information on disk, possibly for anti-virtualization or checking privileges
T1497.001 antivm_sandboxie: Attempts to detect Sandboxie
T1497.001 antivm_generic_ide: Checks the presence of IDE drives in the registry, possibly for anti-virtualization
T1497.001 antivm_generic_scsi: Attempts to detect virtualization by SCSI Disk Identifier
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1564.001 stealth_file: Creates hidden or system files
T1564.004 removes_zoneid_ads: Attempts to hide the indications that the file was downloaded from the Internet
T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1497.001 antivm_queries_computername: Retrieves the computer name
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
T1542.003 bootkit_like_low_level_disk_access: Bootkit-like low level disk access

Discovery

T1497.001 antivm_generic_disk: Checks information on disk, possibly for anti-virtualization or checking privileges
T1497.001 antivm_sandboxie: Attempts to detect Sandboxie
T1497.001 antivm_generic_ide: Checks the presence of IDE drives in the registry, possibly for anti-virtualization
T1497.001 antivm_generic_scsi: Attempts to detect virtualization by SCSI Disk Identifier
T1082 antivm_generic_disk: Checks information on disk, possibly for anti-virtualization or checking privileges
T1518.001 antiav_avast_libs: Attempts to detect Avast Antivirus by a certain library
T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1057 process_interest: Enumerates processes
T1497.001 antivm_queries_computername: Retrieves the computer name
T1135 server_share_info: Retrieves information about each shared resource on a server

Command and Control

T1102.003 cloud_discord: Connects to cloud services of Discord (potentially for malicious payload delivery)
T1071.001 network_http: Performs HTTP requests
T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp

Exfiltration

T1022 encrypts_pc_info: Collects and encrypts information about the computer (possibly for exfiltration)

Other

yara_rules: Static rules
smokeloader_behaviour: Exhibits behavior characteristics of SmokeLoader
modifies_certs: Attempts to generate or modify system certificates
suricata_alert: Malicious traffic detected
creates_exe: Creates executable files in the file system
suspicious_process_network: Unusual process network activity detected
dead_host: Connects to IP addresses that do not respond to requests
executes_dropped_exe: Executes dropped exe files
process_crashed: One of the processes has failed
unexpected_exception: Unexpected exception
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
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

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