PDF / .TMP malware analysis — malicious · 4fdd49fd9959783e

MALICIOUS

PDF / .TMP

45.2 KB

MD5: 4072bbcb33436a8d22ec582a4294fc72 SHA-1: a6c3d1f2d404ec801db4ce0371f5df499658983d SHA-256: 4fdd49fd9959783eea9a0b09fa789993bca2c0565dfb65c9c22d3eab7fa64a99

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious Link T1190 Exploit Public-Facing Application

The PDF file contains embedded JavaScript and U3D content, with heuristics indicating a potential exploit related to Adobe Reader's 3D parser (CVE-family). The presence of multiple JavaScript files, including a large 'deobfuscated.js', suggests the execution of malicious code. The primary attack vector appears to be exploiting a vulnerability to run arbitrary code, likely to download and execute further payloads.

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 0x460C	610 bytes
`legacy_pdfkit_stage_000.js` `6757ee1b0f98f5ef685cd15af90bbb12b35cb034a1d3b219da93138dd92f16ba`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x1BAD	12037 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` `c020b025b5c386792c05c3deaddade0f21b9ba53c2c09ab8b271fe0a001e817b`	deobfuscated-js	PDF JavaScript deobfuscation pass	340128 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 long base64-like blob(s).
`u3d_00_off00004883.bin` `9ee983707edc4351a88e510e1ea40257b620aa8d1703a4e6b0401cfab3608352`	pdf-3d-stream	PDF U3D 3D stream at offset 0x4883	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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