800b2af9b28c76d83a0bad6a9d032c9167d9262ab45c3e8ebc6c53530183069d

Target

Ayca_22.exe
Size

451KB
Sample

240921-px5r2aserd
MD5

1162870766a7524abc673d6d6f6fe0a9
SHA1

75509e298457313aec200d93ab60f73ca1d00fde
SHA256

800b2af9b28c76d83a0bad6a9d032c9167d9262ab45c3e8ebc6c53530183069d
SHA512

d8f2b90bc3ddff12b9d60143518287fcf280ebb17299b50b382a82bbfbaa982ee63faf70d01bb44e5727507c6d5d732f686ce7bc7f014a1b357d8cb9db52e19e
SSDEEP

6144:Traq37wODH1cNaej2JMBO+1ObTq45kCNYczkF77TlTFBYdHJz6:B7wsAKJMBAFNVkF77RTz

Score

10^/10

Malware Config

Targets

- Target
  
  Ayca_22.exe
- Size
  
  451KB
- MD5
  
  1162870766a7524abc673d6d6f6fe0a9
- SHA1
  
  75509e298457313aec200d93ab60f73ca1d00fde
- SHA256
  
  800b2af9b28c76d83a0bad6a9d032c9167d9262ab45c3e8ebc6c53530183069d
- SHA512
  
  d8f2b90bc3ddff12b9d60143518287fcf280ebb17299b50b382a82bbfbaa982ee63faf70d01bb44e5727507c6d5d732f686ce7bc7f014a1b357d8cb9db52e19e
- SSDEEP
  
  6144:Traq37wODH1cNaej2JMBO+1ObTq45kCNYczkF77TlTFBYdHJz6:B7wsAKJMBAFNVkF77RTz
Score

10^/10

bootkit credential_access defense_evasion discovery evasion persistence privilege_escalation ransomware spyware stealer trojan
- Modifies WinLogon for persistence
  persistence
- Modifies firewall policy service
  evasion
- Windows security bypass
  evasion trojan
- Credentials from Password Stores: Credentials from Web Browsers
  Malicious Access or copy of Web Browser Credential store.
  credential_access stealer
- Modifies boot configuration data using bcdedit
  ransomware evasion
- Boot or Logon Autostart Execution: Active Setup
  Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
  persistence
- Disables RegEdit via registry modification
  evasion
- Disables Task Manager via registry modification
  evasion
- Disables cmd.exe use via registry modification
  evasion
- Downloads MZ/PE file
- Drops file in Drivers directory
- Event Triggered Execution: AppInit DLLs
  Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
  persistence privilege_escalation
- Event Triggered Execution: Image File Execution Options Injection
  persistence
- Looks for Xen service registry key.
  evasion
- Server Software Component: Terminal Services DLL
  persistence
- Sets service image path in registry
  persistence
- Uses Session Manager for persistence
  Creates Session Manager registry key to run executable early in system boot.
  persistence
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Credentials from Password Stores: Windows Credential Manager
  Suspicious access to Credentials History.
  credential_access stealer
- Deletes itself
- Event Triggered Execution: Component Object Model Hijacking
  Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
  persistence privilege_escalation
- Executes dropped EXE
- Loads dropped DLL
- Modifies system executable filetype association
  persistence
- Reads user/profile data of local email clients
  Email clients store some user data on disk where infostealers will often target it.
  spyware stealer
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Unexpected DNS network traffic destination
  Network traffic to other servers than the configured DNS servers was detected on the DNS port.
- Windows security modification
  evasion trojan
- Adds Run key to start application
  persistence
- Checks for any installed AV software in registry
- Checks installed software on the system
  Looks up Uninstall key entries in the registry to enumerate software on the system.
  discovery
- Checks whether UAC is enabled
  evasion trojan
- Drops desktop.ini file(s)
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
- Indicator Removal: Clear Persistence
  remove IFEO.
  defense_evasion
- Legitimate hosting services abused for malware hosting/C2
- Maps connected drives based on registry
  Disk information is often read in order to detect sandboxing environments.
- Modifies WinLogon
  persistence
- Writes to the Master Boot Record (MBR)
  Bootkits write to the MBR to gain persistence at a level below the operating system.
  bootkit persistence
- Boot or Logon Autostart Execution: Authentication Package
  Suspicious Windows Authentication Registry Modification.
  persistence privilege_escalation
- Checks system information in the registry
  System information is often read in order to detect sandboxing environments.
- Drops autorun.inf file
  Malware can abuse Windows Autorun to spread further via attached volumes.
- Drops file in System32 directory
behavioral1