Managed XDR

656628856d5d796c52f58d...20ec6eb768-dropped.bin (Neshta) — malware analysis report

File info

Filename
656628856d5d796c52f58dd9186a1ffef2c2c6ed4ebccbf21b96a820ec6eb768-dropped.bin
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
1.8 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
781dd60c9b3e3b3a2dbcd875df2eeb9018a59345
SHA256
656628856d5d796c52f58dd9186a1ffef2c2c6ed4ebccbf21b96a820ec6eb768
MD5
da79c9b21609d9675dc8416d00c29121

Malwares

  • Neshta

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

T1036 system_filename: Created a file named as a common system file
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

T1552 infostealer_browser: Retrieves personal information from local Internet browsers
T1503 infostealer_browser: Retrieves personal information from local Internet browsers
T1552 infostealer_mail: Collects personal data from local email clients
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

T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
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 (100 or more files are modified)

Other

yara_rules: Static rules
creates_exe: Creates executable files in the file system
creates_in_windows: Creates files in the Windows directory
create_process_failed: Could not start the process
no_graphical_activity: No graphic activity
access_recyclebin: Manipulation with recyclebin detected
get_policy_info: Retrieves information about a Policy object
neshta_mutexes: Neshta is detected: mutex
pe_overlay: PE file contains overlay

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