MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a mass of external links, many hosted on shopify.com, designed to appear as legitimate documents but likely serving as a link farm. One prominent link, 'https://ttraff.ru/pify?keyword=medexpress+virtual+job+tryout+answers', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this malicious URL and references a 'medexpress virtual job tryout', suggesting a lure to trick users into clicking the malicious link. No scripts were extracted, but the PDF structure and link analysis strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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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=medexpress+virtual+job+tryout+answers In PDF document text
- http://files.theluckywood.com/uploads/1/3/0/7/130775557/331447.pdfIn PDF document text
- http://files.middleagemiracles.com/uploads/1/3/0/7/130775934/basoveruzu.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/1/0432/6581/8789/files/fosavafid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8699/5863/files/tezugasumajulufuvusanaso.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4470/9276/files/cell_structure_and_function_chart.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6430/3522/files/juturoson.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0023/3112/files/kekaxobudipunimipoxi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9124/5733/files/imperial_decree_rolls.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7754/9728/files/49435239777.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4628/1122/files/41445418108.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1838/6588/files/bapimamelumufonatude.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9803/8679/files/kizibikuxokig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4818/1666/files/10914439575.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1733/8005/files/present_indefinite_tense_exercises_in_urdu.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_off00008b0b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8B0B | 5376 bytes |
SHA-256: 971fe247ff9cad91feac9d835988cfaea00c02d4ce4e90cdc606f91c80a8c599 |
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font_01_sfnt_off00009d82.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9D82 | 10876 bytes |
SHA-256: 75956b0c382c494cb9f35ffae3a8968faaacc1a27370f4794f398aa8ac2f4785 |
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font_02_sfnt_off0000c2b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC2B2 | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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