Managed XDR

vtdl_3g9_mxdz (Amadey, Tinba) — malware analysis report

File info

Filename
vtdl_3g9_mxdz
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
4.9 MB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
2c248c8f093561cc2318179ea1179fd5b172e6be
SHA256
ffc320e5f95d05b9eb4b50db80a8f2f29b20bc166ed6476c570d7276ce8432db
MD5
50d55c187abcd975629a918970b0a2f1

Malwares

  • Amadey
  • Tinba

Signatures

Execution

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1059.005 obfuscated_vbs: Detected obfuscated VBS
T1059 wscript_info_discovery: Collects info about system with Wscript.Shell

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
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

T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1564.004 removes_zoneid_ads: Attempts to hide the indications that the file was downloaded from the Internet
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497.001 antivm_network_adapters: Checks NIC addresses
T1027 obfuscated_vbs: Detected obfuscated VBS
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
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
T1070 stealth_window: A process created a hidden window
T1480 system_default_lang_id_present: Checks the system language

Discovery

T1497.001 antivm_network_adapters: Checks NIC addresses
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1082 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1135 server_share_info: Retrieves information about each shared resource on a server
T1033 wscript_info_discovery: Collects info about system with Wscript.Shell

Other

yara_rules: Static rules
static_pe_anomaly: The PE file structure contains anomalies
creates_in_windows: Creates files in the Windows directory
creates_exe: Creates executable files in the file system
process_crashed: One of the processes has failed
dotnet_suspicious_resources_names: Dotnet program has suspicious resources names
create_rpc_bindings: Creates RPC connection
has_pdb: This executable file has a PDB path
creates_suspended_process: Creates suspended process
dotnet_import_unmanaged_code: Dotnet program statically imports unmanaged functions/modules
access_recyclebin: Manipulation with recyclebin detected
origin_langid: Unconventional language of the executable file
get_policy_info: Retrieves information about a Policy object
creates_in_programdata: Creates files in the ProgramData directory
test_check_service: Starts services
copies_self: Creates a copy of itself
checktokenmembership: Checks user token with CheckTokenMembership call
pe_overlay: PE file contains overlay
executes_dropped_exe: Executes dropped exe files
dotnet_downloader_possible_network_problem: Dotnet program possibly has network problem

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