Managed XDR

c-users-admin-document...4034603a9ae04e5db9.exe (Conti, Neshta) — malware analysis report

File info

Filename
c-users-admin-documents-malware-b9ee022489931c6b68b63b0ae34eb1b4ef141e9bb456e84034603a9ae04e5db9.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
459 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
d66e40bc12cd60f525b049d4c7a9f3e20a0790aa
SHA256
b9ee022489931c6b68b63b0ae34eb1b4ef141e9bb456e84034603a9ae04e5db9
MD5
9a4889237b6aa74e819d60fadb869f51

Malwares

  • Conti
  • Neshta

Signatures

Execution

T1047 has_wmi: Executes one or several WMI requests

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

T1036 system_filename: Created a file named as a common system file
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1218 suspicious_cmdline_keywords: Cmdline with suspicious keywords

Credential Access

T1552 infostealer_mail: Collects personal data from local email clients
T1552.001 infostealer_bitcoin: Attempts to obtain access to Bitcoin/ALTCoin wallets
T1555.003 cookie_files: Accesses cookie files
T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager
T1552 cookie_files: Accesses cookie files

Discovery

T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
T1057 process_interest: Enumerates processes
T1518 locates_browser: Attempts to identify where browsers are installed

Collection

T1114 infostealer_mail: Collects personal data from local email clients

Impact

T1486 modifies_files2: Cryptolocker indicators detected (500 or more files are modified)
T1486 modifies_files: Cryptolocker indicators detected (renamed 500 or more files)
T1490 vssadmin_delete_shadows: Attempt to delete volume shadow copies
T1486 ransomware_message: Ransomware indicators detected (possible ransom message creation)
T1486 ransomware_extensions: Ransomware(s) EncRansom indicators detected (specific extension is added to files)
T1486 mass_data_encryption: Encrypts data using the same key (possible ransomware behaviour)

Other

yara_rules: Static rules
ransomware_shadowcopy: Removes volume shadow copies
creates_exe: Creates executable files in the file system
creates_in_windows: Creates files in the Windows directory
executes_dropped_exe: Executes dropped exe files
no_graphical_activity: No graphic activity
access_recyclebin: Manipulation with recyclebin detected
get_policy_info: Retrieves information about a Policy object
creates_in_programdata: Creates files in the ProgramData directory
neshta_mutexes: Neshta is detected: mutex
test_check_service: Starts services
writes_data: Writes big amount of data to disk
pe_overlay: PE file contains overlay

Related reports

Managed XDR