Managed XDR

windecryptor.zip (BlackMatter, Lockbit, DarkSide) — malware analysis report

File info

Filename
windecryptor.zip
File type
Zip archive data, at least v2.0 to extract
File size
24.4 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
ec51ff4f672007117a4ca08c2578314e5a854b05
SHA256
0fbb73b3bdcffe963e43a875b8843db578188befd6e7130f898b52a17e4eabdc
MD5
eb373912608c45624e980806d2543cb9

Malwares

  • BlackMatter
  • Lockbit
  • DarkSide

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

T1497 antidbg_setinformationthread: Attempts to evade debugger using NtSetInformationThread
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Credential Access

T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1497 antidbg_setinformationthread: Attempts to evade debugger using NtSetInformationThread
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey

Other

yara_rules: Static rules
only_exec_in_archive: The archive contains only an executable file
static_pe_duplicate_sections: The PE file structure contains anomalies: duplicate section names
require_administrator: Requests administrator privileges
test_check_service: Starts services
writes_data: Writes big amount of data to disk

Related reports

Managed XDR