MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a high number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, 'https://ttraff.com/pify?keyword=exam+results+sheet+explained', is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to exam results and the malicious URL, suggesting a lure to trick users into clicking the link. The ML classifier strongly flagged this PDF as malicious.
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.com/pify?keyword=exam+results+sheet+explained In PDF document text
- http://files.crowandlilac.com/uploads/1/3/1/8/131871902/6581105.pdfIn PDF document text
- http://files.mikesmobilesolutions.com/uploads/1/3/2/6/132681336/bifopivofaja-kujibi-sosateronaxekig-biratitelega.pdfIn PDF document text
- http://files.tangiblegreen.net/uploads/1/3/1/3/131384495/281d523a0a4f.pdfIn PDF document text
- http://mawaloxuk.nicholasruscettaart.com/uploads/1/3/0/7/130775997/gikafibakag_motubimuf_pijagovulerod_sunipumapa.pdfIn PDF document text
- http://files.hvacrepairtemecula.com/uploads/1/3/1/4/131483386/vosizugekit.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/1/0429/9345/1159/files/tiwexalaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5923/3443/files/google_sheets_histogram_labels.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1564/3031/files/punozivebojarigagetowebow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6346/7414/files/38016125189.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9180/3801/files/kibenawe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0263/4148/files/22097617456.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0775/3888/files/guia_de_ejercicios_de_calistenia.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7488/7573/files/90634038206.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1948/4839/files/kulelo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8499/5991/files/diabetes_gestacional_definicion.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000069a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x69A5 | 6452 bytes |
SHA-256: 23e8cfde14408656995582c21943eeec0eccc9e5a2f65670b9631e3a4117aa8d |
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font_01_sfnt_off000079a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79A7 | 4996 bytes |
SHA-256: 98a8c693c81bb307b60e6237bcfc86ffd53963cc2dd2abb40890d553c16b2e64 |
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font_02_sfnt_off00008a76.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A76 | 10492 bytes |
SHA-256: 035ec2c907c497577134143f921ea9549f9db461fd2ba9a26dc46e93e61ef6a7 |
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font_03_sfnt_off0000ae44.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE44 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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