Managed XDR

arctic-voyager-sewage-...eatment-plant-tank.eml (Remcos) — malware analysis report

File info

Filename
arctic-voyager-sewage-treatment-plant-tank.eml
File type
RFC 822 mail, ASCII text, with CRLF line terminators
File size
1.6 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
c79ff2bf3f9f6d4f736013f370e62fa146a745ed
SHA256
47e07c28809733a3b6572e598df1463688ab6fd70dce15291ea6d362113db5ec
MD5
b24e8d49652f1113f3cecdd653344f8a

Malwares

  • Remcos

Signatures

Execution

T1204.002 mimics_extension: Attempts to mimic the file extension
T1059.003 executes_dropped_cmd: Executes dropped batch files
T1106 susp_callbacks: Suspicious usage of some WinAPI with callbacks

Persistence

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup

Privilege Escalation

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1548.002 uac_bypass_mocking_dir: UAC bypass with the use of mocking directory
T1055 injection_thread: Code injection to a remote process using CreateRemoteThread or NtQueueApcThread
T1055.012 injection_runpe: Injects code into another 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

T1548.002 uac_bypass_mocking_dir: UAC bypass with the use of mocking directory
T1055 injection_thread: Code injection to a remote process using CreateRemoteThread or NtQueueApcThread
T1055.012 injection_runpe: Injects code into another process
T1036 copies_utilities: Copies and runs system utility with different name
T1027.002 unnamed_memory_regions_contains_pe: One or several unnamed memory regions are PE files
T1036 mimics_extension: Attempts to mimic the file extension
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1562 dep_disable: Disables DEP
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1480 system_default_lang_id_present: Checks the system language

Credential Access

T1555.003 cookie_files: Accesses cookie files
T1552 cookie_files: Accesses cookie files

Discovery

T1033 recon_beacon: The process has sent information about the computer over the network
T1057 process_interest: Enumerates processes
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
T1016.001 system_network_configuration_discovery: System network configuration discovery detected

Command and Control

T1102.003 cloud_bitbucket: Connects to cloud services of bitbucket.org (potentially for malicious payload delivery)
T1071.001 recon_beacon: The process has sent information about the computer over the network
T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp

Other

yara_rules: Static rules
suricata_alert: Malicious traffic detected
networkdyndns_checkip: Connects to a Dynamic DNS domain
executes_dropped_exe: Executes dropped exe files
creates_exe: Creates executable files in the file system
modifies_certs: Attempts to generate or modify system certificates
create_process_failed: Could not start the process
process_crashed: One of the processes has failed
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
enables_execute_access_on_stack: Enable execution access on stack

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