Managed XDR

516e23b3-0b40-78ef-5bac-7c1e39ecf251.eml (Remcos) — malware analysis report

File info

Filename
516e23b3-0b40-78ef-5bac-7c1e39ecf251.eml
File type
ASCII text, with very long lines, with CRLF line terminators
File size
1.6 MB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
b04a0c4cb9dd5806aae20a2cefad7f3b5fd9d73d
SHA256
c97b058cfc95f42dde48ff9c45ab9b3c7c775cb365ee14c0e2b385c55153aa19
MD5
2422585cc7f48eb0737034d6ba085082

Malwares

  • Remcos

Signatures

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
T1134.004 ppid_spoofing: Parent pid spoofing detected
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1055.012 injection_runpe: Injects code into another process
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

T1134.004 ppid_spoofing: Parent pid spoofing detected
T1218 bypass_dev_utils: Executing .NET utility in a suspended state, potentially for injection
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1055.012 injection_runpe: Injects code into another process
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
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 packer_entropy: Probably contains compressed or encrypted data
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
T1070 stealth_window: A process created a hidden window

Credential Access

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)

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

Collection

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)
T1115 checks_clipboard: Monitors clipboard data

Command and Control

T1071.001 network_cnc_http: Suspicious HTTP traffic
T1071.001 network_http: Performs HTTP requests
T1071.001 wininet_openurl: Performs HTTP/HTTPS-requests using InternetOpenUrl

Other

yara_rules: Static rules
creates_exe: Creates executable files in the file system
pe_in_bcryptdecrypt: PE found in BCryptDecrypt function
copies_self: Creates a copy of itself
ip_domains: Identifies an IP address using external resources
suspicious_process_network: Unusual process network activity detected
no_graphical_activity: No graphic activity
dotnet_suspicious_resources_names: Dotnet program has suspicious resources names
creates_suspended_process: Creates suspended process
dotnet_obfuscated: Dotnet program is potentially obfuscated
creates_in_programdata: Creates files in the ProgramData directory
checktokenmembership: Checks user token with CheckTokenMembership call
dotnet_suspicious_entrypoint: Dotnet program has suspicious entrypoint

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