MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.cc) known for malicious activity. The document body, though heavily obfuscated, contains text suggesting a lure related to "joint pdf probability" and includes the malicious redirector URL. The ML classifier strongly indicated maliciousness, and the presence of a link farm further supports a malicious intent, likely to redirect users to phishing sites or download further malware.
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.cc/pify?keyword=joint+pdf+probability In PDF document text
- http://files.holyspiritlv.org/uploads/1/3/1/4/131453253/daguzifesikuk-netenulasiduv-wojot.pdfIn PDF document text
- http://files.idzea.com/uploads/1/3/1/4/131408798/2b6c1d4cf004.pdfIn PDF document text
- http://files.pinkpineapplestudiodfw.com/uploads/1/3/1/8/131856046/9365436.pdfIn PDF document text
- http://files.bhseducationfoundation.com/uploads/1/3/1/3/131383934/982c1abc92bd.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/1/0438/3545/7696/files/words_that_rhyme_with_change.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mitev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7074/9856/files/kojawakujogebejosife.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0344/4380/files/andhra_university_distance_education_notification_2020_20.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5054/8899/files/vafuxedoxejo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8066/3705/files/resume_for_high_school_graduate.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vemuvuferakodumi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7030/7995/files/pokubup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6224/8095/files/pefaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6900/6236/files/44465330111.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1064/6435/files/maxekokesonudib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6262/3394/files/42970413838.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0741/8273/files/50080037861.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_off00007607.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7607 | 4756 bytes |
SHA-256: 09312b2b0191969752a717a7dda11d43e483056449e96d573397654ed15c09b2 |
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font_01_sfnt_off00008632.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8632 | 10040 bytes |
SHA-256: 157dcca2323eda41e80b18b66d4085007d0a6785796c39408d5c06b8541a2a6f |
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font_02_sfnt_off0000a892.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA892 | 4324 bytes |
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71 |
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