Managed XDR

c-windows-ufwsdpw.exe (Stealc, Mars Stealer) — malware analysis report

File info

Filename
c-windows-ufwsdpw.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
215 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
dc59766bbc129ab6821c1546991c001403027285
SHA256
0bf13c2a1d537d65335c14e35bfb068b4c0413fbb6cabb217ecb7897fd881f2e
MD5
6c1d66b806a37159d04483aa8c90f999

Malwares

  • Stealc
  • Mars Stealer

Signatures

Privilege Escalation

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
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1027.002 pe_features: Executable file has PE anomalies (may be false positive)
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name
T1480 system_default_lang_id_present: Checks the system language
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Credential Access

T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name

Command and Control

T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp

Other

yara_rules: Static rules
network_bind: Starts servers listening at None
has_pdb: This executable file has a PDB path
origin_langid: Unconventional language of the executable file
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services

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