Managed XDR

7zs.sfx.exe (Tinba, Smoke Bot) — malware analysis report

File info

Filename
7zs.sfx.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
1.5 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
fce2a5a4a930df71e23608f1468f010a9a27a0a1
SHA256
60f7542fc38ff540ec252c590d3e4695bbf314fa991352bde0239e64d8584b93
MD5
2579624b4433d4e5fddaa989c46b89d4

Malwares

  • Tinba
  • Smoke Bot

Signatures

Execution

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

Persistence

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1574 dropper_dll: Creates DLL, which is then loaded into the process
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

T1562.001 disables_security: Disables Windows Security options
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
T1036.003 ntdll_copy: Renames or copying NTDLL.dll to bypass HIPS
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)
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
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Discovery

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
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)
T1057 process_interest: Enumerates processes

Command and Control

T1095 network_icmp: Creates ICMP traffic
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
suricata_alert: Malicious traffic detected
smokeloader_behaviour: Exhibits behavior characteristics of SmokeLoader
modifies_certs: Attempts to generate or modify system certificates
ip_domains: Identifies an IP address using external resources
network_bind: Starts servers listening at 127.0.0.1:0
creates_exe: Creates executable files in the file system
suspicious_process_network: Unusual process network activity detected
dns_without_resolve: DNS query without a response
dead_host: Connects to IP addresses that do not respond to requests
process_crashed: One of the processes has failed
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
changes_ext_type: File extension changed from executable to non-executable or vice versa
test_check_service: Starts services
pe_overlay: PE file contains overlay
executes_dropped_exe: Executes dropped exe files

Related reports