MALICIOUS
242
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm and a specific malicious redirector URL, disguised with invoice-related text. The primary malicious URL is https://ttraff.ru/pify?keyword=auto+repair+invoice+form+pdf, which is likely used to redirect the user to a further malicious destination. The document body and heuristics indicate a lure related to payment or invoices, a common tactic in business email compromise attacks.
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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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=auto+repair+invoice+form+pdf In PDF document text
- http://files.burleybridge.com/uploads/1/3/2/8/132814250/wazodal-katom.pdfIn PDF document text
- http://files.flowergirlnaturals.com/uploads/1/3/0/9/130969656/7144519.pdfIn PDF document text
- http://files.queenofthewaves.org/uploads/1/3/0/7/130739674/gegibibibakerin_vivupi_wifel.pdfIn PDF document text
- http://paleb.marylandcivilairpatrol.org/uploads/1/3/2/6/132681579/79694f22d4a138.pdfIn PDF document text
- http://files.americanreferralconnection.com/uploads/1/3/1/4/131406736/083e967ba.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/1/0427/7311/9143/files/lerevosusawu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5059/8562/files/75005081765.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1594/6911/files/vaxanuxexakuratotari.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9276/2006/files/65657467841.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3459/8809/files/gikudiwijav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4837/8280/files/redusuwer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5903/3752/files/19146089960.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3441/8075/files/2509080067.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7810/4728/files/tewowizawip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4653/5322/files/judoxiloxax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9788/2773/files/kagazoga.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1195/5098/files/jitujad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6059/9701/files/incidencia_politica.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_off00007c69.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C69 | 5140 bytes |
SHA-256: 3eeed0db5675126da1620258bc2037d6377438561370edeab0f21c2c8cbb470d |
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font_01_sfnt_off00008dda.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8DDA | 10400 bytes |
SHA-256: 0065edc82c646470ce03541bb70eee4209a4c3fba255482c5db08a91d605b999 |
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