Managed XDR

16443936.zip (Remcos) — malware analysis report

File info

Filename
16443936.zip
File type
Zip archive data, at least v2.0 to extract
File size
673.9 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
59cf0a5d5348c63f1828bafaf11d673fe34aa4e3
SHA256
a4422aee46f7f90f4215b54a44aace18d3f1727083a9b61f259f9e95f50b9638
MD5
cb42c76f221dfaf58d7bfa2daed95668

Malwares

  • Remcos

Signatures

Privilege Escalation

T1055.002 inject_write_pe: Writes PE file to another process's memory
T1134 sets_privilegies_via_rtladjustprivilege: Sets process privilege via RtlAdjustPrivilege
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
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
T1497.002 antisandbox_foregroundwindows: Checks whether any human activity is being performed by constantly checking whether the foreground window has changed
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1027.002 pe_features: Executable file has PE anomalies (may be false positive)
T1134 sets_privilegies_via_rtladjustprivilege: Sets process privilege via RtlAdjustPrivilege
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
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1070 stealth_window: A process created a hidden window

Credential Access

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

Discovery

T1497.002 antisandbox_foregroundwindows: Checks whether any human activity is being performed by constantly checking whether the foreground window has changed
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1057 process_interest: Enumerates processes
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers

Collection

T1115 checks_clipboard: Monitors clipboard data

Other

yara_rules: Static rules
ce_info: Remcos Configuration Data found
dead_host: Connects to IP addresses that do not respond to requests
only_exec_in_archive: The archive contains only an executable file
no_graphical_activity: No graphic activity
creates_suspended_process: Creates suspended process
creates_in_programdata: Creates files in the ProgramData directory
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
writes_data: Writes big amount of data to disk
pe_overlay: PE file contains overlay
valid_authenticode: The digital signature has been verified

Related reports