Managed XDR

userprofile-documents-...pzbcfsnzaxzf9aqlrm.exe (Stealc) — malware analysis report

File info

Filename
userprofile-documents-simpleadobe-acfsctpzbcfsnzaxzf9aqlrm.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
270 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
7b34b936627d3874b9f1595ea0e25f0700acc76e
SHA256
8d8e0734ba1d608ef6ee124b1d5ab196223f6eb1d50348d1eb0b6ae57cd8ad3a
MD5
5e386b45b948a5a8bc8467e2a9fc2bb1

Malwares

  • Stealc

Signatures

Privilege Escalation

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

T1070.004 deletes_self: Moves to different location or removes the original executable file
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
T1497.001 antivm_generic_cpu: Checks the CPU name, possibly for anti-virtualization
T1497.003 antisandbox_sleep_utilities: Uses Windows utilities for pausing the execution
T1562 registry_hide_tracing: Modifies File/Console tracing settings (often used to hide iocs from the system)
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1480 system_default_lang_id_present: Checks the system language
T1497.001 antivm_queries_computername: Retrieves the computer name
T1070 stealth_window: A process created a hidden window
T1070.004 self_removal_command: Executes command to delete itself

Credential Access

T1552 infostealer_ftp: Collects data from local FTP clients
T1555.003 cookie_files: Accesses cookie files
T1552 cookie_files: Accesses cookie files

Discovery

T1497.001 antivm_generic_cpu: Checks the CPU name, possibly for anti-virtualization
T1497.003 antisandbox_sleep_utilities: Uses Windows utilities for pausing the execution
T1057 process_interest: Enumerates processes
T1518 recon_programs: Collects information about installed programs
T1497.001 antivm_queries_computername: Retrieves the computer name

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
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Other

suricata_alert: Malicious traffic detected
network_ftp: Performs FTP requests
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
get_policy_info: Retrieves information about a Policy object
yara_rules: Static rules

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