PDF malware analysis — malicious · 881515ebb5d1713d

MALICIOUS

PDF

45.5 KB Created: 2020-10-19 12:44:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25

MD5: 706421bd6b1c026f8a7a641994ad373c SHA-1: bf288b43039cfc6626694292b5e4bce90595ed9c SHA-256: 881515ebb5d1713de8c14fffdda8875f1d252d6319a349b1f1d3554688e54dae

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://gettraff.ru/strik?keyword=anuel+cancion+para+sua+m%25C3%25A3e+descarreg In PDF document text
- https://xetutinafo.weebly.com/uploads/1/3/0/7/130775845/fuzavipibijifot.pdfIn PDF document text
- https://punadojum.weebly.com/uploads/1/3/2/6/132680976/e7f737882c03d.pdfIn PDF document text
- https://fewevivib.weebly.com/uploads/1/3/0/8/130813821/5967272.pdfIn PDF document text
- https://xonuvalax.weebly.com/uploads/1/3/1/4/131437330/muzudipefikimaros.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386618/normal_5f8d4681e5214.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369165/normal_5f8b9573ced7e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366316/normal_5f870e31521b4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366354/normal_5f8712cbd8e95.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369305/normal_5f8c7e3c327fb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365591/normal_5f874a4ec75a8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366015/normal_5f8759dd42a88.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367278/normal_5f8bd5afa9a13.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365627/normal_5f890df349557.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0495/2008/3110/files/destiny_2_menagerie_weapons_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0481/3167/0179/files/management_of_information_security_5th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0266/8134/4199/files/sikevuvoge.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5b21570f-29d7-4dac-8421-2bf3fea4b4d5/wipizem.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1fd051bb-20ad-430a-a74f-5e8159c30249/64697730201.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/eef0cce0-7872-4ea2-999d-0083a2e94a70/budebopuxezerenarep.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3db55f58-c3e8-4eaa-85f9-14ef125b7bd2/gewizewalaxatogevefi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/14991973-4e1a-4380-bd3b-06dc1849f981/31695576772.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0483/1035/4075/files/55037130578.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0266/8511/2496/files/waxawisitib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0495/9987/3187/files/86629735726.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0477/6483/2412/files/kokezum.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006f8a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6F8A	5700 bytes
SHA-256: `6b9170c8c470448f12bde09ba8c3525184d32c64cc1f5d8a3f36808e4a521190`
`font_01_sfnt_off00008237.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8237	11688 bytes
SHA-256: `cf3e5bdf6251b5fae48d7d5b4f0732a43a26815f8a3b1bb4147b98a10f242f43`

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