MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links, including one pointing to a known malicious redirector at 'ttraff.com'. The document body, though obfuscated, contains the text 'Systematic sampling formula pdf', suggesting a lure to trick users into clicking the malicious link. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm used for SEO poisoning or to obscure the final malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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/pify?keyword=systematic+sampling+formula+pdf
- http://files.pinwellbooks.co.uk/uploads/1/3/2/7/132710704/tudivi_bugosa.pdf
- http://zeliwum.marissaseancruz.com/uploads/1/3/0/9/130969352/a7a07.pdf
- http://pibuzomur.krutschworks.com/uploads/1/3/0/8/130813528/fa01f229a9766.pdf
- http://files.teachbaketravel.com/uploads/1/3/1/4/131483201/833084.pdf
- https://cdn.shopify.com/s/files/1/0427/4031/8375/files/kepurezepuxuvuvemod.pdf
- https://cdn.shopify.com/s/files/1/0436/3078/8758/files/jotulozusebawir.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7236632937.pdf
- https://cdn.shopify.com/s/files/1/0431/0673/0138/files/36603302210.pdf
- https://cdn.shopify.com/s/files/1/0431/0863/0681/files/82592378487.pdf
- https://cdn.shopify.com/s/files/1/0432/1627/3563/files/92520588019.pdf
- https://cdn.shopify.com/s/files/1/0433/3826/8830/files/99042358374.pdf
- https://cdn.shopify.com/s/files/1/0438/8447/8632/files/56413015654.pdf
- https://cdn.shopify.com/s/files/1/0427/9926/8003/files/gonudimudelikax.pdf
- https://cdn.shopify.com/s/files/1/0434/1966/4541/files/gate_2020_syllabus_cse_download.pdf
- https://cdn.shopify.com/s/files/1/0428/5900/4070/files/22954394091.pdf
- https://cdn.shopify.com/s/files/1/0429/1421/8151/files/10780810095.pdf
- https://cdn.shopify.com/s/files/1/0431/7102/0960/files/xubufebamo.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006bc2.binc4a651cc26bbdfdaed88d12e2d836c983192dd094f68a99a08342dfbc2355407 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BC2 | 5680 bytes |
font_01_sfnt_off00007f0b.bin4e702dca298481501e6033b10ddbf24b1d610d775f937246f864e97ab8012439 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F0B | 10620 bytes |
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