Resubmissions
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240928-stfwaasfjq 6General
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Target
Ayca_22.exe
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Size
451KB
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Sample
241020-mh5glsvgkn
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MD5
1162870766a7524abc673d6d6f6fe0a9
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SHA1
75509e298457313aec200d93ab60f73ca1d00fde
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SHA256
800b2af9b28c76d83a0bad6a9d032c9167d9262ab45c3e8ebc6c53530183069d
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SHA512
d8f2b90bc3ddff12b9d60143518287fcf280ebb17299b50b382a82bbfbaa982ee63faf70d01bb44e5727507c6d5d732f686ce7bc7f014a1b357d8cb9db52e19e
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SSDEEP
6144:Traq37wODH1cNaej2JMBO+1ObTq45kCNYczkF77TlTFBYdHJz6:B7wsAKJMBAFNVkF77RTz
Static task
static1
Behavioral task
behavioral1
Sample
Ayca_22.exe
Resource
win11-20241007-en
Malware Config
Targets
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Target
Ayca_22.exe
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Size
451KB
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MD5
1162870766a7524abc673d6d6f6fe0a9
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SHA1
75509e298457313aec200d93ab60f73ca1d00fde
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SHA256
800b2af9b28c76d83a0bad6a9d032c9167d9262ab45c3e8ebc6c53530183069d
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SHA512
d8f2b90bc3ddff12b9d60143518287fcf280ebb17299b50b382a82bbfbaa982ee63faf70d01bb44e5727507c6d5d732f686ce7bc7f014a1b357d8cb9db52e19e
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SSDEEP
6144:Traq37wODH1cNaej2JMBO+1ObTq45kCNYczkF77TlTFBYdHJz6:B7wsAKJMBAFNVkF77RTz
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Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
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Downloads MZ/PE file
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Drops file in Drivers directory
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Event Triggered Execution: Image File Execution Options Injection
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Manipulates Digital Signatures
Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.
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Credentials from Password Stores: Windows Credential Manager
Suspicious access to Credentials History.
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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.
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Executes dropped EXE
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Impair Defenses: Safe Mode Boot
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Loads dropped DLL
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Modifies system executable filetype association
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Adds Run key to start application
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Blocklisted process makes network request
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Checks for any installed AV software in registry
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Maps connected drives based on registry
Disk information is often read in order to detect sandboxing environments.
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1Event Triggered Execution
4Change Default File Association
1Component Object Model Hijacking
1Image File Execution Options Injection
1Netsh Helper DLL
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1Event Triggered Execution
4Change Default File Association
1Component Object Model Hijacking
1Image File Execution Options Injection
1Netsh Helper DLL
1Defense Evasion
Impair Defenses
1Safe Mode Boot
1Modify Registry
5Pre-OS Boot
1Bootkit
1Subvert Trust Controls
3Install Root Certificate
1SIP and Trust Provider Hijacking
2Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1