PDF malware analysis — malicious · 12dbb0209d439b37

MALICIOUS

PDF

735.6 KB Created: ¶ïB¬½þIóH}´;*FDõt®rªä´×ÄóðtZ%ÁÓ~MªIJ= Authoring application: }ã^Ý¿g4lQZ½ðmÝº&9¨fq6sò0v@22_D×K >e6m (via KÂíªè;ÎañÚÓ´eÍ ¼±R9Kìa^] ncD|ô( -Kâ)

MD5: dde3fd3e45fb8adaa1243bec826fedcd SHA-1: f645fee438bad6c4a2e796177090a82751711ae7 SHA-256: 12dbb0209d439b3777a55468017b6a168f1d1d7364a0471d5f26e095f28f32cf

276 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains embedded JavaScript and RichMedia (Flash) content, and is flagged as encrypted with JavaScript, indicating a hidden malicious payload. Critical heuristics identify exploitation of CVE-2011-2462 related to the U3D/RichMedia parser. ClamAV also detected the file as Pdf.Dropper.Agent-1507034. The combination of these factors strongly suggests the PDF is designed to exploit vulnerabilities and download further malicious content.

Heuristics 11

Adobe Reader U3D/RichMedia parser exploit critical CVE likely CVE_2011_2462

PDF combines U3D 3D content with RichMedia/Flash activation and JavaScript/action surfaces. This is the U3D RichMedia exploit document shape associated with CVE-2011-2462.
U3D/3D content in PDF — Adobe Reader 3D parser CVE-family indicator high CVE related PDF_U3D_CVE_RELATED

PDF contains U3D (Universal 3D) or 3D annotation content — CVE-2011-2462 and CVE-2009-3953 are critical vulnerabilities in Adobe Reader's U3D processing that allow arbitrary code execution. U3D content in PDFs is extremely rare in normal documents.
ClamAV: Pdf.Dropper.Agent-1507034 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-1507034
RichMedia (Flash) high PDF_RICHMEDIA

PDF contains /RichMedia (Adobe Flash) which is a historic exploit vector
Encrypted PDF carries /JavaScript — payload hidden from static analysis high PDF_ENCRYPTED_WITH_JS

PDF declares /Encrypt and also references an executable trigger (/JavaScript). Document encryption hides the JavaScript body and stream contents from static scanners — combined with auto-execution indicators this is a known evasion pattern used to deliver weaponised JavaScript that the analyst cannot inspect without the decryption key.
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
PDF paints image(s) but contains no text operators info PDF_IMAGE_ONLY_LURE

PDF has 1 image XObject(s) and the content stream contains no text-emitting operators (BT/ET, Tj, TJ, ', ") in either raw bytes or decompressed streams — this is the screenshot-as-PDF pattern used to bypass text-based scanners and to deliver instructions purely through rendered pixels. It is informational unless paired with invisible links or risky URI context.
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser exited 1. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.

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