General
- Target cat downloader (1).exe
- Size 14.0MB
- Sample261018-vcmcvae16n
- SHA256 26a2c21a92457c6634193f216c578a12147b47569b56074cb9d53a74e77e98e0
- MD5 f63791077d9716bdda26eed23e543b9e
- SHA1 2740b8594e4af49c128f5bf8c383217f099e8c69
- SHA512 d22d3ab28fc416189017703c59617c3b23fa1025389909c39392f7073468516993d4a3aee75c530197327f0ed7d9704790e6c9cbf45974e38bfe5ed08e8c6cec
- SSDEEP 393216:EEGzEFwAa0G0BJ8a+mvQafVJ1rybYZd7:d5bGIuxwHEbYD
- TLSH T139E623C68EDB92A0D99B5E742D8223DD20DA73EDC0EC8B5E35C5DC133991DB9980E1B1
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
cat downloader (1).exe
Resource
win10v2004-20260911-en
26 signatures
900 seconds
Behavioral task
behavioral2
Sample
cat downloader (1).exe
Resource
win11ltsc2024-20260911-en
19 signatures
900 seconds
Malware Config
Targets
-
- Target cat downloader (1).exe
- Size 14.0MB
- SHA256 26a2c21a92457c6634193f216c578a12147b47569b56074cb9d53a74e77e98e0
- MD5 f63791077d9716bdda26eed23e543b9e
- SHA1 2740b8594e4af49c128f5bf8c383217f099e8c69
- SHA512 d22d3ab28fc416189017703c59617c3b23fa1025389909c39392f7073468516993d4a3aee75c530197327f0ed7d9704790e6c9cbf45974e38bfe5ed08e8c6cec
- SSDEEP 393216:EEGzEFwAa0G0BJ8a+mvQafVJ1rybYZd7:d5bGIuxwHEbYD
- TLSH T139E623C68EDB92A0D99B5E742D8223DD20DA73EDC0EC8B5E35C5DC133991DB9980E1B1
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Looks for VirtualBox Guest Additions in registry
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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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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Executes dropped EXE
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Loads dropped DLL
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Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
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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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Probable phishing domain
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Suspicious use of NtSetInformationThreadHideFromDebugger
MITRE ATT&CK Enterprise v16
Defense Evasion
Debugger Evasion
1Modify Registry
2Virtualization/Sandbox Evasion
2