MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=intermolecular+forces+chem+150+activity+answers'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, including one to 'https://cdn.shopify.com/s/files/1/0450/2165/9286/files/abiy_ahmed_book_medemer.pdf'. The document body, though heavily obfuscated, contains the malicious URL, suggesting a lure to external content.
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.ru/pify?keyword=intermolecular+forces+chem+150+activity+answers In PDF document text
- http://rixenabe.thecollegiatechoice.com/uploads/1/3/1/0/131070420/tupiroveb.pdfIn PDF document text
- http://files.hordlevoluntarycare.org/uploads/1/3/1/8/131856769/1185162.pdfIn PDF document text
- http://files.stormriderswindsurfingclub.com/uploads/1/3/0/9/130969826/6335791.pdfIn PDF document text
- http://files.sustainmizzou.org/uploads/1/3/1/4/131453950/85b70.pdfIn PDF document text
- http://kowep.nexustherapies.ch/uploads/1/3/1/3/131398027/milebiraxere.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/1/0450/2165/9286/files/abiy_ahmed_book_medemer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4572/5094/files/81725562316.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6918/5943/files/2019_daily_calendar_template_excel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8031/1203/files/vagixobigofimodaparazib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8933/7256/files/blacksmith_lessons.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5543/2348/files/bozebemugefemikikifezop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2672/7580/files/naxuvivukesatomo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8935/3118/files/iata_airport_codes_list.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3550/8392/files/metujegazuvedupebuj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6581/8782/files/vargmul_and_ghanmul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6861/1989/files/performance_parts_2005_honda_civic.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ae10.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE10 | 5632 bytes |
SHA-256: 274324911e8decf7ffcd9826f7e1f9cf4f5072d839f40ae922f2957c9f460e32 |
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font_01_sfnt_off0000c128.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC128 | 10320 bytes |
SHA-256: 09b8c8fcc26c8005c2f5eff4a88ea2c79f16f42edcb5ec5b96815cc7e0c05c48 |
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font_02_sfnt_off0000e492.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE492 | 16060 bytes |
SHA-256: 713933360072c9d59346590fad668f98c3603c6d2b72ed941ce85481f6af0b74 |
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