Managed XDR

76ffd0f9-25ca-424b-98ec-909809d375ce.eml (Remcos) — malware analysis report

File info

Filename
76ffd0f9-25ca-424b-98ec-909809d375ce.eml
File type
UTF-8 Unicode text, with very long lines, with CRLF line terminators
File size
2.7 MB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
1fafd276ba88560e89a1d6f9f4c72b7d3261977c
SHA256
81f83235441c4074c18b7ff7c5e184106c529b189f68fd32702113c010057162
MD5
01e9fc75a7cf5e55aefc4ac4804c85ea

Malwares

  • Remcos

Signatures

Persistence

T1574 dropper_dll: Creates DLL, which is then loaded into the process

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
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Defense Evasion

T1027.002 unnamed_memory_regions_contains_pe: One or several unnamed memory regions are PE files
T1027.002 decompress_pefile: Unpacks a PE file into memory
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1564.001 stealth_file: Creates hidden or system files
T1140 decompress_pefile: Unpacks a PE file into memory
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
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

Credential Access

T1552 infostealer_mail: Collects personal data from local email clients
T1552 infostealer_browser: Retrieves personal information from local Internet browsers
T1503 infostealer_browser: Retrieves personal information from local Internet browsers
T1552 infostealer_im: Collects information about installed messengers
T1552 cookie_files: Accesses cookie files
T1555.003 cookie_files: Accesses cookie files
T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1518 recon_programs: Collects information about installed programs
T1518 locates_browser: Attempts to identify where browsers are installed
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

Collection

T1114 infostealer_mail: Collects personal data from local email clients

Command and Control

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

Other

suricata_alert: Malicious traffic detected
networkdyndns_checkip: Connects to a Dynamic DNS domain
network_bind: Starts servers listening at None
creates_exe: Creates executable files in the file system
no_graphical_activity: No graphic activity
valid_authenticode: The digital signature has been verified
create_rpc_bindings: Creates RPC connection
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
pe_overlay: PE file contains overlay
yara_rules: Static rules

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