Managed XDR

re_-comprobante-de-pago-2_10_2025.eml (Remcos) — malware analysis report

File info

Filename
re_-comprobante-de-pago-2_10_2025.eml
File type
SMTP mail, ASCII text, with CRLF line terminators
File size
4.5 MB
First seen
Last seen

Environment

win7/x64 en

Hashes

SHA1
0c8cf093a23f55edd02a9037c6edf5d96e1702d0
SHA256
42d33c30539b31489a570651f5f297394bc88d18e6f16200317d41e8f45c4da3
MD5
d440fa88e0539ee139d33733de0c708e

Malwares

  • Remcos

Signatures

Persistence

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

Privilege Escalation

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

Defense Evasion

T1055.002 inject_write_pe: Writes PE file to another process's memory
T1055.012 injection_runpe: Injects code into another process
T1562 dep_disable: Disables DEP
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
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1027.004 compiles_code: Compiles VB.NET code
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
T1055 injection_failed: The attempt to inject into a process has failed

Discovery

T1497.003 antisandbox_sleep: The process attempted to slow down analysis

Other

yara_rules: Static rules
ce_info: Remcos Configuration Data found
creates_many_processes: Spawns a lot of processes (over 70)
unpacker_wrong_base: Possibly, an error occured in the file unpacker
runs_utility_without_cmdline: Runs system utility without arguments (non-typical usage)
dead_host: Connects to IP addresses that do not respond to requests
suspicious_process: Spawns a suspicious process
no_graphical_activity: No graphic activity
valid_authenticode: The digital signature has been verified
has_pdb: This executable file has a PDB path
creates_suspended_process: Creates suspended process
pe_overlay: PE file contains overlay

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