PDF / .TMP malware analysis — malicious · a362f942b64bd342

MALICIOUS

PDF / .TMP

44.7 KB

MD5: 2fdc664b8003a104004d7882c99a2f2e SHA-1: 59ba750f206a53accf8990df5590b7c966eb135c SHA-256: a362f942b64bd3425cbe296f54edfdee56039a923ccd89a5b917c63ff3c0d1b8

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript T1204.002 Malicious File

The PDF file contains embedded JavaScript and a U3D (3D content) stream, which is flagged as a CVE-related indicator. The presence of JavaScript, particularly in a deobfuscated form, suggests an attempt to execute malicious code. The U3D content is likely used to trigger an exploit. The primary attack vector appears to be leveraging a vulnerability within the PDF reader's handling of 3D content to achieve code execution.

Heuristics 5

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.
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.
syncAnnotScan annotation-staging primitive low PDF_FOXIT_SYNCANNOTSCAN

PDF JavaScript calls syncAnnotScan() — a no-op annotation-enumeration primitive used by exploit-kit JavaScript to stage payload reads from annotation /Subject fields before eval(). Not a vulnerable sink itself; rarely seen in legitimate PDFs. (matched in decompressed stream)
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0009_000.js` `13cf2d0eaec85c705da4c2fffb65e113947a5265c1fe553819586fc741044d7a`	pdf-javascript-stream	PDF /JS object 9 at offset 0x4428	610 bytes
`legacy_pdfkit_stage_000.js` `8a422e8674c03034d4e3428f7e3d6bcdc344578ff91a7cebe1adbe5be4edccd7`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x1AD4	11660 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
`deobfuscated.js` `48958d22c1e6de87731b1a8d58b242ed80e3c3074478326c18f61b0c430d46f5`	deobfuscated-js	PDF JavaScript deobfuscation pass	339508 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 long base64-like blob(s).
`u3d_00_off0000469f.bin` `9ee983707edc4351a88e510e1ea40257b620aa8d1703a4e6b0401cfab3608352`	pdf-3d-stream	PDF U3D 3D stream at offset 0x469F	28021 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.79, consistent with packed or encrypted content.

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