PDF malware analysis — malicious · 984ce2ac0219b430

MALICIOUS

PDF

45.0 KB

MD5: 0ca51dedd4f232e125844d49fc9f5ccf SHA-1: c046e87d83f4add99a8052d59b1246e451968a26 SHA-256: 984ce2ac0219b430fc0f0b3f3c75c146552a7bcac173281b529adf1114c5738b

126 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains embedded JavaScript triggered by the CVE-2007-5659 vulnerability, specifically using the 'Collab.collectEmailInfo' sink. This indicates an attempt to exploit Adobe Reader to execute arbitrary code. The presence of U3D content and multiple JavaScript streams further supports this. The primary attack vector appears to be exploiting a known PDF vulnerability to deliver a malicious payload.

Heuristics 6

Collab.collectEmailInfo — CVE-2007-5659 critical CVE exact CVE_2007_5659

PDF JavaScript calls Collab.collectEmailInfo — CVE-2007-5659 is a buffer overflow in Adobe Reader triggered by a long argument or heap-sprayed message field passed to Collab.collectEmailInfo(). Part of a series of Acrobat JS API exploits. (identified after JavaScript deobfuscation)
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` `857d6ef4d23102650aa9aea4e114da0906fe59fb62811951378edc561a79c469`	pdf-javascript-stream	PDF /JS object 9 at offset 0x454A	550 bytes
`legacy_pdfkit_stage_000.js` `3461e26ea61b684c9b1f3c5a22f0d3042f6c69529bfcfd8bc53162d6aa5cf81f`	deobfuscated-js	z-percent UTF-16BE base-21 decoded JavaScript at offset 0x1B84	5440 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).
`deobfuscated.js` `708f19db87d5ab5afff5a51ca983ea1f4a21e91c47a36f752ea5590f59191a3b`	deobfuscated-js	PDF JavaScript deobfuscation pass	339657 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 long base64-like blob(s).
`u3d_00_off000047b0.bin` `a96e1fca2499edf504d3934052ca1fc338d4b4898a65e6a361937ed1ba0dc0fe`	pdf-3d-stream	PDF U3D 3D stream at offset 0x47B0	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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