Managed XDR

vtdl_1789155677_b1enamdx (Remcos) — malware analysis report

File info

Filename
vtdl_1789155677_b1enamdx
File type
Composite Document File V2 Document, No summary info
File size
324 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
ebe61cad6e596096958ce773b0d9c6db105e2c7f
SHA256
ea661eeff5ad7eb042f4cd1a4995557b09a5ca2096b935a3c9fea858a90cf970
MD5
1a4323a7fb3d2b538e1471ca5f5f9edb

Malwares

  • Remcos

Signatures

Execution

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup

Persistence

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup

Privilege Escalation

T1055.002 inject_write_pe: Writes PE file to another process's memory
T1055.012 injection_runpe: Injects code into another process
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
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

T1055.002 inject_write_pe: Writes PE file to another process's memory
T1055.012 injection_runpe: Injects code into another process
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1027.004 compiles_code: Compiles C# code
T1027.001 static_overlay_padding: Overlay contents padding
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Command and Control

T1102.003 references_google: Contains links to cloud services of Google (potentially for malicious payload delivery)

Other

yara_rules: Static rules
ce_info: Remcos Configuration Data found
unpacker_wrong_base: Possibly, an error occurred in the file unpacker
copies_self: Creates a copy of itself
creates_exe: Creates executable files in the file system
process_crashed: One of the processes has failed
no_graphical_activity: No graphic activity
dotnet_suspicious_resources_names: Dotnet program has suspicious resources names
dotnet_suspicious_module_name: Dotnet program has suspicious module name
creates_suspended_process: Creates suspended process
static_compression_ratio: Very high compression ratio of a file
checktokenmembership: Checks user token with CheckTokenMembership call
writes_data: Writes big amount of data to disk
pe_overlay: PE file contains overlay
static_big_overlay: Executable file contains an enormously big overlay

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