Managed XDR

dissatisfaction-of-ser...-client-complaint-.eml (Remcos) — malware analysis report

File info

Filename
dissatisfaction-of-service-letter-client-complaint-.eml
File type
SMTP mail, ASCII text, with CRLF line terminators
File size
6.8 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
cd4de6a4a68c0d0055dbe81baf369b2c5f59691d
SHA256
073b9af442232aa757c8dd15dbe612574d58c4afbc186d57663e2b642af7394c
MD5
132a5f5a6e802b803d4e39cd832ffe8a

Malwares

  • Remcos

Signatures

Persistence

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1055.012 injection_runpe: Injects code into another process
T1055 injection_thread: Code injection to a remote process using CreateRemoteThread or NtQueueApcThread
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

Defense Evasion

T1055.002 inject_write_pe: Writes PE file to another process's memory
T1055.012 injection_runpe: Injects code into another process
T1055 injection_thread: Code injection to a remote process using CreateRemoteThread or NtQueueApcThread
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1027.002 pe_features: Executable file has PE anomalies (may be false positive)
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

Command and Control

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

Other

yara_rules: Static rules
ce_info: Remcos Configuration Data found
creates_exe: Creates executable files in the file system
process_crashed: One of the processes has failed
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
message_box: Displays a message
test_check_service: Starts services
pe_overlay: PE file contains overlay

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