Managed XDR

cosco-arrival-notice-c...00-_-express-3243e.eml (Koadic) — malware analysis report

File info

Filename
cosco-arrival-notice-cosu6369531900-_-express-3243e.eml
File type
RFC 822 mail, ASCII text, with CRLF line terminators
File size
188.8 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
2cc68b515452bb04cee454ff7e8c2c5182dd8499
SHA256
a9b13654cf0ff82d19a559de80185c822a1c7d3daab564bd128afc5460d61e37
MD5
b114d6544aeab9dfc3ced17bd8e8dbcd

Malwares

  • Koadic

Signatures

Execution

T1059.001 suspicious_powershell: Creates suspicious powershell process
T1047 has_wmi: Executes one or several WMI requests
T1106 susp_callbacks: Suspicious usage of some WinAPI with callbacks

Privilege Escalation

T1548.002 uac_bypass_mocking_dir: UAC bypass with the use of mocking directory
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

T1548.002 uac_bypass_mocking_dir: UAC bypass with the use of mocking directory
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
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
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
T1497.001 antivm_queries_computername: Retrieves the computer name

Credential Access

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

Discovery

T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
T1082 uses_windows_utilities: Uses Windows utilities for basic Windows functionality
T1518 locates_browser: Attempts to identify where browsers are installed
T1082 reads_csrss: Attempts to read csrss.exe memory
T1497.001 antivm_queries_computername: Retrieves the computer name

Collection

T1560.001 archive_via_utility: Detected archiving data via utility

Command and Control

T1102.003 cloud_onedrive: Connects to cloud services of Onedrive (potentially for malicious payload delivery)
T1105 lolbin_extrac32: Download or Copy file with Extrac32
T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp

Other

yara_rules: Static rules
executes_dropped_exe: Executes dropped exe files
suspicious_pdf_link: PDF file with suspicious hyperlink or content
creates_exe: Creates executable files in the file system
creates_in_windows: Creates files in the Windows directory
suspicious_pdf: PDF file with suspicious content
dbatloader_behaviour: DBatLoader/ModiLoader behaviour
pdf_page: Contains only one page
process_crashed: One of the processes has failed
no_graphical_activity: No graphic activity
pdf_compressed_stream: Contains an object with compressed stream
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
office_links: Office file contains external links
checktokenmembership: Checks user token with CheckTokenMembership call

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