PDF malware analysis — malicious · 683071fb1a3596ea

MALICIOUS

PDF

63.2 KB Created: 2020-10-22 19:24:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15

MD5: 074c92b5f337360fa20b59788d3a6bbe SHA-1: ec3ae0366f8818f0217541544f18f1fd126dcc23 SHA-256: 683071fb1a3596eaa5ca7acefa43ba6b304259361c3deaff1a49a16fc03c3875

134 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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.
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://ttraff.club/pify?keyword=understanding+property+law+sprankling+pdf In PDF document text
- https://cdn-cms.f-static.net/uploads/4368746/normal_5f889c5c44a34.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367624/normal_5f89bdaa95a81.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375896/normal_5f8da52d51976.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366367/normal_5f881174b2f61.pdfIn PDF document text
- https://zuxuzesis.weebly.com/uploads/1/3/1/4/131438019/1137588.pdfIn PDF document text
- https://buximinolid.weebly.com/uploads/1/3/1/3/131381316/kazuzuwusuj.pdfIn PDF document text
- https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/bewoti.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366346/normal_5f8d711279c64.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375353/normal_5f8f86526bcd5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384296/normal_5f8d4ff87e80b.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/162f9e0d-bc17-4bb8-a044-dbfcef0022dc/28304151041.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fb10d463-52e8-45e5-9774-07f7d9b46348/kaneso.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bbddf01c-c226-4de5-a307-4fd15a164af4/75760677964.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8290f420-965a-4fbb-ad69-7dee53da85a3/2413700505.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/14f68f8d-ba59-4b9c-a795-bc7acaaad2fa/kudijusunexikizilifonemub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3879/4147/files/92267746890.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8389/0850/files/nawodipazobomimami.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1086/6851/files/statistics_for_data_science_python.pdfIn PDF document text
- https://s3.amazonaws.com/leguvefu/57320304913.pdfIn PDF document text
- https://s3.amazonaws.com/fasanag/building_construction_procedures.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_off0000b7c9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB7C9	5456 bytes
SHA-256: `064c0e1e18d9efdcb334efd39b2e6770735dbb41db020a8199409c36563e77a8`
`font_01_sfnt_off0000ca7a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCA7A	10660 bytes
SHA-256: `3ea6764688a38bacce54cb71c54fa5815150e735e76ac37a0d56cdb25972cec8`

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