Managed XDR

vtdl_fanalhcg (Smoke Bot, Amadey) — malware analysis report

File info

Filename
vtdl_fanalhcg
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
284 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
b67c5423c7a5c121df7cbde62cf9aa63e9815239
SHA256
ef5d809884c08215ddd8ffb4b22e7c17e97593da374ea0364517b469a23be98b
MD5
38a05fe74f2324ef947ef332929b4050

Malwares

  • Smoke Bot
  • Amadey

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

Privilege Escalation

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1055 injection_runpe_2: Executes injected code in another 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

T1070.004 deletes_self: Moves to different location or removes the original executable file
T1055 injection_runpe_2: Executes injected code in another process
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
T1027.002 packer_themida: Themida packer signatures detected
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
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
T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1027.002 pe_features: Executable file has PE anomalies (may be false positive)
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1497.001 antivm_generic_video: Checks information about video adapters in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name

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)
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1057 process_interest: Enumerates processes
T1497.001 antivm_generic_video: Checks information about video adapters in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name

Command and Control

T1071.001 network_http: Performs HTTP requests
T1102.003 cloud_github: Connects to cloud services of Github (potentially for malicious payload delivery)
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
creates_exe: Creates executable files in the file system
create_process_failed: Could not start the process
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
origin_langid: Unconventional language of the executable file
test_check_service: Starts services
suricata_alert: Malicious traffic detected

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