MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external links, many of which are hosted on Shopify, suggesting a link farm for SEO poisoning. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used in conjunction with the lure 'bup.edu.bd admit card'. This indicates a phishing attempt to redirect users to malicious 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.cc/pify?keyword=bup.+edu.+bd+admit+card In PDF document text
- http://files.joyfulnoisepreschoolsandy.com/uploads/1/3/0/8/130813768/595cf7d.pdfIn PDF document text
- http://files.circle-m-consulting-llc.com/uploads/1/3/2/7/132740293/8bbacf1.pdfIn PDF document text
- http://files.thissiteisunderconstruction.org/uploads/1/3/2/6/132682542/besozig_binuvidudenu.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/1/0429/1005/6615/files/79863500526.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7354/5116/files/bepirozuxa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5344/9365/files/46928742688.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9932/4580/files/rasiwafuzolenekefuwitiz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65939759823.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3485/4051/files/15758506212.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4718/9670/files/jiripage.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6645/8265/files/dapuxatixibozovugibu.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
- http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006163.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6163 | 5232 bytes |
SHA-256: f52b5794be26579afe9d980bc5e9600b88ca43c5120e47202fb52c763a69f492 |
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font_01_sfnt_off0000730b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x730B | 7344 bytes |
SHA-256: be9b397609a1915b463beacf039ab2bda7d302b4c70d30c2cbb5862243c9fd30 |
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font_02_sfnt_off00008a19.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A19 | 10288 bytes |
SHA-256: f456375d4c9684e6b2918be1047399632256933fc59216e5dc084d022ccad04b |
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font_03_sfnt_off0000ad86.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD86 | 16204 bytes |
SHA-256: 541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501 |
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