MALICIOUS
242
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains multiple heuristics indicating malicious intent, including a redirector link and a payment redirection lure. The document body, though heavily obfuscated, contains a URL that mirrors the malicious redirector. The presence of a 'download button' lure further supports a phishing or malware delivery attempt. The primary malicious URL identified is https://ttraff.ru/pify?keyword=balance+sheet+example+problems+with+solutions+pdf.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LUREDocument describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=balance+sheet+example+problems+with+solutions+pdf In PDF document text
- http://files.snackscast.com/uploads/1/3/1/6/131607930/bcbb99.pdfIn PDF document text
- http://files.haymakerprints.com/uploads/1/3/0/7/130775257/zidozeg_kesiwibolubod.pdfIn PDF document text
- http://files.jeffcrowell.com/uploads/1/3/1/4/131438501/ba843.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/1/0435/9074/6271/files/definition_of_family_planning.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pewugokujugiwiburonanas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1240/7967/files/zosanitimipozepejelusogan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7300/2902/files/dogonuzelutokulupe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/notadenagefajofakiwu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0409/9735/files/old_bengali_books_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7300/2906/files/4060256657.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0796/5345/files/33263489792.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2875/0241/files/91069057658.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1282/4993/files/48872032347.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0384/4520/files/gokigokolus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8126/0438/files/luwosifilegup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2041/9226/files/27815545797.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_off0000c120.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC120 | 5628 bytes |
SHA-256: 380e5682c1bf86cbd654a07170ed3b8ba54de4f313f76d22cbd58f4c8a3c4de8 |
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font_01_sfnt_off0000d40f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD40F | 10580 bytes |
SHA-256: d988f8527fad06e70eb5b21b113dcb476412e6c405de178ea46f4a88d7f17f79 |
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font_02_sfnt_off0000f827.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF827 | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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