MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to external resources, a technique often used to create link farms for SEO manipulation or to redirect users to malicious sites. One critical heuristic identified a link to a known malicious redirector infrastructure at 'ttraff.com'. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, and the presence of numerous links indicates a likely attempt to drive traffic to potentially harmful destinations.
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.com/wb?keyword=addition%20of%20similar%20fractions%20worksheets%20for%20grade%204 In PDF document text
- http://files.mac-italy.com/uploads/1/3/1/8/131872298/zofizidezade.pdfIn PDF document text
- http://files.handymanportlandmaine.com/uploads/1/3/0/8/130873849/tesugan-binixefagik-rekipugosa.pdfIn PDF document text
- http://files.magicaljohn.com/uploads/1/3/0/8/130814666/dozamefo_posonano_befuta.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/1/0433/4298/7422/files/51886173571.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6843/1265/files/88137736611.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8544/7833/files/2711025153.pdfIn PDF document text
- https://fogojifoxuni.files.wordpress.com/2020/06/runakewaxut.pdfIn PDF document text
- https://nabenoge.files.wordpress.com/2020/07/wisanokadotuxawafawet.pdfIn PDF document text
- https://xomabife.files.wordpress.com/2020/07/2409914504.pdfIn PDF document text
- https://nojaxasak.files.wordpress.com/2020/07/4147143034.pdfIn PDF document text
- https://jojoveda.files.wordpress.com/2020/07/42767915253.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1637/2892/files/libaxufofedogovizuzu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7675/4344/files/xurelukekotafeludika.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2007/4663/files/60166015311.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7257/7946/files/bunabifurolodebekujid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7932/0223/files/98423504425.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1682/2692/files/bezolon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9464/6689/files/nupuzapivinijuwaku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4024/9755/files/jojejigejuted.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_off000070ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70ED | 5456 bytes |
SHA-256: 2b89f1a6c63bf2e1acb2fe719611d7e273added38619dc13b826c4954d4d0327 |
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font_01_sfnt_off0000835e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x835E | 9444 bytes |
SHA-256: 306012f4105c4bb52b92ebac791ca220a8481fc61566c9746ccb6ebb7661e224 |
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