Managed XDR

20250709_fp_100_83.eml (Remcos) — malware analysis report

File info

Filename
20250709_fp_100_83.eml
File type
ASCII text
File size
1.4 MB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
f65bf06cad96ada0a2f750735522a8aaef550bf2
SHA256
cc3bfd0356d65ea41c94e64ca8f89b255462b2b369e0e78da1e7188903536fe1
MD5
4a7a28411c4965b5a0594399ec9cd856

Malwares

  • Remcos

Signatures

Execution

T1204.002 mimics_extension: Attempts to mimic the file extension

Privilege Escalation

T1055.002 inject_write_pe: Writes PE file to another process's memory
T1055.012 injection_runpe: Injects code into another process
T1055 injection_failed: The attempt to inject into a process has failed
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

T1055.002 inject_write_pe: Writes PE file to another process's memory
T1055.012 injection_runpe: Injects code into another process
T1036 mimics_extension: Attempts to mimic the file extension
T1027.002 unnamed_memory_regions_contains_pe: One or several unnamed memory regions are PE files
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1562 dep_disable: Disables DEP
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1055 injection_failed: The attempt to inject into a process has failed
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

Other

yara_rules: Static rules
steganographic_png: Possible malicious steganographic PNG
ce_info: Remcos Configuration Data found
networkdyndns_checkip: Connects to a Dynamic DNS domain
unpacker_wrong_base: Possibly, an error occured in the file unpacker
dead_host: Connects to IP addresses that do not respond to requests
no_graphical_activity: No graphic activity
dotnet_suspicious_resources_names: Dotnet program has suspicious resources names
has_pdb: This executable file has a PDB path
creates_suspended_process: Creates suspended process
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
dotnet_suspicious_module_name: Dotnet program has suspicious module name

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