MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of the primary links, https://ttraff.ru/pify?keyword=aviation+english+book+free+download+pdf, is identified as a malicious redirector. This suggests the document is designed to redirect users to malicious sites under the guise of providing a free PDF download. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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.ru/pify?keyword=aviation+english+book+free+download+pdf In PDF document text
- http://files.thearconline.org/uploads/1/3/1/3/131380901/33eb553dd2d.pdfIn PDF document text
- http://files.dancingbeartech.com/uploads/1/3/0/8/130873932/pifodufi.pdfIn PDF document text
- http://files.francofestcalgary.com/uploads/1/3/1/3/131380343/jobotasivexa-sopubizoj-vuniba-xixedakupesuloz.pdfIn PDF document text
- http://files.caseyharvilla.com/uploads/1/3/2/7/132712214/vevuzupakaki.pdfIn PDF document text
- http://files.tobypenneyartist.com/uploads/1/3/1/8/131856743/kajadajevixasijebaxa.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/1/0431/2861/9168/files/rukigesewe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2019/7789/files/70144429015.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2710/2887/files/60328984533.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0134/8255/files/59052314532.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6618/6135/files/misobaxilagugixikobusorus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5350/4917/files/vufagipajuxasug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8606/1463/files/pop_false_ceiling_design_catalogue.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5362/2182/files/9296110866.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1868/1496/files/78636048531.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5107/3174/files/85165148789.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rakapadanixip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6124/7138/files/bapibakorarumuzajununa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7707/5108/files/zufufavusoneligutoxu.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004e91.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4E91 | 5436 bytes |
SHA-256: c92a8ef7a01926978b8a5b5b634022f3b597811084adb65887b2c6e2dec69b45 |
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font_01_sfnt_off00006113.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6113 | 9952 bytes |
SHA-256: 5d78ba354529fd68a332526da978abf09e15bead26e5dd13846d7f66a658f29a |
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font_02_sfnt_off00008312.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8312 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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