PDF malware analysis — malicious · 7826099970f183ae

MALICIOUS

PDF

50.4 KB Created: 2020-10-05 23:24:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-16

MD5: af34f25c7929958fa2c3649618412d5a SHA-1: 2fc57fe8f309d482c8cc27b734163703296e4b57 SHA-256: 7826099970f183ae8d3f66b5fc52dad9b5c4816fd48ac83292a8733ba07aa2d6

194 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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.
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://cctraff.ru/strik?keyword=history+books+free+download+in+urdu+pdf In PDF document text
- https://site-1036907.mozfiles.com/files/1036907/86264210867.pdfIn PDF document text
- https://site-1039343.mozfiles.com/files/1039343/rikodiwu.pdfIn PDF document text
- https://site-1037024.mozfiles.com/files/1037024/31604114172.pdfIn PDF document text
- https://site-1038788.mozfiles.com/files/1038788/17998546705.pdfIn PDF document text
- https://site-1037003.mozfiles.com/files/1037003/44295619521.pdfIn PDF document text
- https://site-1043172.mozfiles.com/files/1043172/90618790723.pdfIn PDF document text
- https://site-1038505.mozfiles.com/files/1038505/zigomeferabesevelidav.pdfIn PDF document text
- https://site-1041200.mozfiles.com/files/1041200/xojirunakeve.pdfIn PDF document text
- https://site-1036930.mozfiles.com/files/1036930/82940905635.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0434/4096/3751/files/a_tribe_called_quest_check_the_rhime_remix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7218/4732/files/11490166358.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2166/2365/files/child_language_acquisition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0483/2257/6548/files/tcc_southeast_campus_phone_number.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0462/5956/8791/files/turedekavakibodazoxonif.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/eb34acb5-8797-4247-abe1-0a9fae869896/durudubovejekokeje.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4557e772-095e-4508-a89a-fe942738641e/xamifofasemuponujej.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1192ebb5-cbe7-4e54-9150-e05a1186cca9/xuwatexatupozuru.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2e5be8a3-e4da-463b-a53f-b6079e6bfb39/luluwana.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_005_off000087df.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x87DF	22308 bytes
SHA-256: `97d72d14db578deaae5b1f6bc5e0d87a0fc3e6f6e5826017344ca26d8020225b`
`font_00_sfnt_off0000543a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x543A	5276 bytes
SHA-256: `5ef193d29d2dc29b0ad5d257ee1986845882e6b8db031c5b8c01bba5b8ef0273`
`font_01_sfnt_off00006642.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6642	9824 bytes
SHA-256: `714f7f28429f9eec7551ad5423a578d0934ba306902bf13ac1edc245add83562`
`font_03_sfnt_off0000adad.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xADAD	4324 bytes
SHA-256: `9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2`

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