PDF malware analysis — malicious · 35222f77278d561d

MALICIOUS

PDF

77.4 KB Created: 2020-12-16 09:41:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05

MD5: d00af2d697a5fe81221fc2908f2c6c9c SHA-1: ce1b11c347da0821b2ccd5ca40c5aedeabbe59c9 SHA-256: 35222f77278d561dbdeaddf6c428aa5fb48be99dc991b3ce592ce142ee2eb13e

196 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, many of which point to SEO-optimized PDF files, suggesting a link farm or redirector strategy. The heuristic 'PDF_SEO_UTM_REDIRECTOR_LINK' specifically identifies an image lure linking to an SEO redirector at 'https://trafficel.ru/123?utm_term=the+book+of+life+123freemovies', indicating a phishing or malware distribution attempt. ClamAV also detected this file as 'Pdf.Phishing.Trojan'. No scripts were extracted, but the overall structure and heuristics point to a malicious phishing lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK

PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://trafficel.ru/123?utm_term=the+book+of+life+123freemovies PDF link annotation
- https://nopetozu.weebly.com/uploads/1/3/4/5/134507327/2429591.pdfIn PDF document text
- https://depuxozepol.weebly.com/uploads/1/3/4/3/134377374/bugud.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://static1.squarespace.com/static/5fce2910de434d6c8f057b39/t/5fd03736a4b4ef2db69eb7ca/1607481142630/dekameg.pdfIn PDF document text
- https://s3.amazonaws.com/sosupejuxofedo/lujeta.pdfIn PDF document text
- https://s3.amazonaws.com/peveziwoguxuzam/cave_story_walkthrough.pdfIn PDF document text
- https://s3.amazonaws.com/wekibik/bhojpuri_gana_video_new_2019.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc59b4fbdb33045eee230e9/t/5fc774143d56556d143e9070/1606906901637/60296989087.pdfIn PDF document text
- https://s3.amazonaws.com/nelizenejakarug/kenefabiretowin.pdfIn PDF document text
- https://static1.squarespace.com/static/5fce3d6c8a652741489ba5e5/t/5fd6add7481cfa31add3829f/1607904729859/cowboys_injury_report_vs_saints.pdfIn PDF document text
- https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe02ed1972c46e3c65e31b/1606288110942/ford_555_backhoe_parts_manual.pdfIn PDF document text
- https://s3.amazonaws.com/dedinavesute/rujekez.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9af932ab-8293-48e6-82f3-41f4b0b18b10/pesujojogutebuse.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000caca.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCACA	5360 bytes
SHA-256: `63fa8e6d90bfc6d29352282d59e8de32c260dd06a2088616933d9fbb7ee3794b`
`font_01_sfnt_off0000dcaa.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDCAA	6360 bytes
SHA-256: `78eabf62d588197e104562f0d55ba261f5e05edad2384423da6371d76d39e311`
`font_02_sfnt_off0000ec46.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEC46	11084 bytes
SHA-256: `a02803d4dd3bf60da33973b71961be6f5cb3b86c772bde7d90840b847f390738`
`font_03_sfnt_off0001116f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1116F	16596 bytes
SHA-256: `881f01486a003c7cb04878e473e6c2500467b71f3fcbe70db774680c8b8f93fa`

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