MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to WordPress hosted PDFs, suggesting a link farm or SEO manipulation tactic. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=file+handling+in+c+pdf+free+download'. This indicates an attempt to direct users to malicious content under the guise of providing free downloads.
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=file+handling+in+c+pdf+free+download In PDF document text
- http://files.stuttgartmath.com/uploads/1/3/1/4/131453365/2335560.pdfIn PDF document text
- http://files.compass-quay.com/uploads/1/3/1/3/131383404/dedibotavosowan_vogamez.pdfIn PDF document text
- http://files.caseyharvilla.com/uploads/1/3/2/7/132712214/vevuzupakaki.pdfIn PDF document text
- http://files.jeninottphotography.com/uploads/1/3/2/7/132710669/148162.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://dakenoxuw.files.wordpress.com/2020/06/62405705466.pdfIn PDF document text
- https://zajenunu.files.wordpress.com/2020/06/91084650801.pdfIn PDF document text
- https://weberex.files.wordpress.com/2020/06/38285789673.pdfIn PDF document text
- https://zufudevuse.files.wordpress.com/2020/06/70830062334.pdfIn PDF document text
- https://gomumutuweno.files.wordpress.com/2020/07/wavonepaxen.pdfIn PDF document text
- https://mudosezu.files.wordpress.com/2020/07/relutobifegejifemo.pdfIn PDF document text
- https://garigubit.files.wordpress.com/2020/06/tefatujuk.pdfIn PDF document text
- https://tibozetus.files.wordpress.com/2020/06/bunawikawug.pdfIn PDF document text
- https://vorituve858525036.files.wordpress.com/2020/06/55993244957.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8000/8355/files/tetexabujufogobemag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rodupenewizaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6954/6395/files/83645589087.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9586/8067/files/sotijogoxezupiroxojuxak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1306/3327/files/defolomojugaxovalipetege.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4119/3110/files/gikugo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9821/7374/files/51472188248.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuwuvedalolavotidexetugom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mupesoxozuwimufuvijolus.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_off000085e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x85E2 | 4992 bytes |
SHA-256: 6db5fea157ead9fbe07d99b00d8389694c3766ad8d912433e41408d58956f2a6 |
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font_01_sfnt_off000096d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x96D7 | 10688 bytes |
SHA-256: 64a5a8cf07f4870e8d75ccf9bb90eac5420c444b84b9e126242c2175e7406663 |
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