Managed XDR

as.exe — malware analysis report

File info

Filename
as.exe
File type
PE32+ executable (console) x86-64 (stripped to external PDB), for MS Windows
File size
5.5 MB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
d2804e2755200d753992b60f645a2eed34e9a9eb
SHA256
7f0c11c8d74b12a470123a1f61b5ca3228b7841a7d639d0ddc6f4b8fcd960a0a
MD5
220e3082ccd18064e5adb776d7183a64

Signatures

Privilege Escalation

T1134 opens_process_token: Opens the access token associated with a process

Defense Evasion

T1497.001 antivm_disk_size: Checks the amount of free disk space
T1134 opens_process_token: Opens the access token associated with a process
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers

Credential Access

T1552.001 infostealer_bitcoin: Attempts to obtain access to Bitcoin/ALTCoin wallets
T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1497.001 antivm_disk_size: Checks the amount of free disk space
T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers

Impact

T1486 modifies_files2: Cryptolocker indicators detected (500 or more files are modified)
T1486 modifies_files: Cryptolocker indicators detected (renamed 500 or more files)
T1486 ransomware_message: Ransomware indicators detected (possible ransom message creation)

Other

cryptolocker_wallpaper: Ransomware indicators detected (changes the desktop wallpaper file)
network_bind: Starts servers listening at None
access_recyclebin: Manipulation with recyclebin detected
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
writes_data: Writes big amount of data to disk
pe_overlay: PE file contains overlay
Managed XDR