MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains, suggesting a link farm or SEO poisoning tactic. One critical heuristic identified a link to a known malicious redirector, 'ttraff.cc', which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=learning+arabic+words+pdf', reinforcing the lure. The ML classifier also strongly indicated maliciousness.
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=learning+arabic+words+pdf In PDF document text
- http://files.cloudvalleycashmere.com/uploads/1/3/1/4/131406785/9495024.pdfIn PDF document text
- http://files.destinybydesignonline.com/uploads/1/3/1/6/131606046/wujaden-kezerelepuka.pdfIn PDF document text
- http://files.ktkayakrentals.com/uploads/1/3/0/8/130813855/e25a2f28b7.pdfIn PDF document text
- http://files.daphnehocakedesign.com/uploads/1/3/0/7/130739789/wamuzapojupaxeworupo.pdfIn PDF document text
- http://files.tankenterprises.ca/uploads/1/3/0/8/130874595/mukuworulusuki.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/1/0435/8491/3565/files/quantitative_chemical_analysis_harris_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5658/5111/files/32630831643.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3092/1894/files/aadhar_card_update_form_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1718/2104/files/75476339420.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7318/4678/files/23698379828.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7948/9950/files/things_i_wish_i_knew_before_i_got_married.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3865/3086/files/normal_cdf_versus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3350/9534/files/basubaninaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0978/5512/files/22677416947.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8285/8144/files/78631824387.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2945/5263/files/fowunilumelurake.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9884/7896/files/85756847581.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0067/6001/files/37090482825.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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 |
|---|---|---|---|
stream_005_off00009b35.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x9B35 | 25864 bytes |
SHA-256: 950fed63cf5319a28e9245ef45cac55ded45109d68a452a923e294608e6aee89 |
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font_00_sfnt_off000062aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62AA | 5464 bytes |
SHA-256: a78edd3ec9ca1d900cf0dc09e815fca039a595141a8da3b165abec57216ce6d2 |
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font_01_sfnt_off0000755f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x755F | 12108 bytes |
SHA-256: 1c81f9c5506262e1346eed51d2927bbfa24091891587cbf7a799fcf3a354b914 |
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