Managed XDR

userprofile-documents-...ukcxsmsq3hrzpocet6.exe (Stealc) — malware analysis report

File info

Filename
userprofile-documents-simpleadobe-hwt5coukcxsmsq3hrzpocet6.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
293.5 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
595f5d7e2f69335c856b98597976377aeff578c5
SHA256
1df6bb23399f152b6819064852750a08d1fd972684b822bdd20e8bed360773ac
MD5
162414aed77d0fc165250bd454dd89e5

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
T1497.001 antivm_generic_cpu: Checks the CPU name, possibly for anti-virtualization
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
T1497.003 antisandbox_sleep_utilities: Uses Windows utilities for pausing the execution
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1027.002 pe_features: Executable file has PE anomalies (may be false positive)
T1497.001 antivm_queries_computername: Retrieves the computer name
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
T1070.004 self_removal_command: Executes command to delete itself
T1480 system_default_lang_id_present: Checks the system language

Credential Access

T1552 infostealer_ftp: Collects data from local FTP clients

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
T1518 recon_programs: Collects information about installed programs
T1057 process_interest: Enumerates processes
T1518 locates_browser: Attempts to identify where browsers are installed
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
no_graphical_activity: No graphic activity
creates_suspended_process: Creates suspended process
origin_langid: Unconventional language of the executable file
checktokenmembership: Checks user token with CheckTokenMembership call
yara_rules: Static rules

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