PDF malware analysis — malicious · b293a42ff04fefc6

MALICIOUS

PDF

48.0 KB Created: 2020-10-27 10:57:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25

MD5: cdfd9e1dc0f5b149d6a6ec9650425916 SHA-1: 7d63b6fe30bf565eb7165a4d1d9e23cf29173e2d SHA-256: b293a42ff04fefc6b7d57f89720d67367247d615117b7527510f13392b357277

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://ttraff.me/pify?keyword=black+and+white+negatives+to+digital In PDF document text
- https://cdn-cms.f-static.net/uploads/4383925/normal_5f8ec0cca2978.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4414677/normal_5f97b410f1c88.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366014/normal_5f943484a67b2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381547/normal_5f8d41ec6e5f3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367665/normal_5f930e9553bb4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367919/normal_5f8d44e6b195e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370063/normal_5f8a438daf066.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4373755/normal_5f97d717d3290.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/1/0495/9548/2261/files/glass_dome_display_ideas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0484/7930/5890/files/we_belong_together_movie_ending.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0497/2334/3009/files/sotomemetamoveleba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0497/4703/4266/files/el_conejo_y_el_leon_cuento.pdfIn PDF document text
- https://s3.amazonaws.com/gozilum/genetics_pedigree_worksheet.pdfIn PDF document text
- https://s3.amazonaws.com/tetazino/guxiwesevazabudizajakudez.pdfIn PDF document text
- https://s3.amazonaws.com/lanubili/acgih_industrial_ventilation_manual_28th_edition.pdfIn PDF document text
- https://s3.amazonaws.com/petuzutemixuvod/97345340847.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a14239ac-7d42-45fb-8070-86e2f4b4ebc0/zixomagasi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e57c9835-d50e-4ee3-a0e6-073d73aa8fa0/wall-e_toys_lego.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a853de4b-b509-4efc-80e3-6dbecfda8c1d/38717162287.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ae170571-72af-4948-b733-fa05d4145879/7842465547.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a46cf06e-5249-4809-bace-6e8cc6df7563/85568589227.pdfIn PDF document text
- https://s3.amazonaws.com/jotizifime/devibebaluvejinu.pdfIn PDF document text
- https://s3.amazonaws.com/jamokaroxoj/19724406060.pdfIn PDF document text
- https://s3.amazonaws.com/dozuga/jotinemawobigif.pdfIn PDF document text
- https://s3.amazonaws.com/wonoti/bus_ticket_format_download.pdfIn PDF document text
- https://s3.amazonaws.com/susopuzupure/23488187033.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_off00007be7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7BE7	5372 bytes
SHA-256: `f5fd5d176deca4a533e96f63f2b3039bea1efeeb5d28b83b0141efd3664ce008`
`font_01_sfnt_off00008e45.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8E45	10900 bytes
SHA-256: `5b05440491915da807a4007d01f72d4cbd04868cf9e94e42dfbe611c72d24496`

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