MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm designed to appear as legitimate educational resources, but it redirects to a malicious URL. The ML classifier strongly indicated maliciousness. The primary malicious IOC is the redirector URL, which is used to funnel victims to further 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.club/wix?keyword=elementary+principles+of+chemical+processes+3rd+edition+solutions+pdf In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://587a89e9-cfdf-4958-b71f-409516071fa1.filesusr.com/ugd/7ba596_d3136ea3c0614a269ee054c86d37c104.pdf?index=trueIn PDF document text
- https://d2b41cb5-87af-4668-a4d9-fc7cfc0aa983.filesusr.com/ugd/de3d83_af2316d4e0454689adb88bab7229d8d4.pdf?index=trueIn PDF document text
- https://d6e432f2-4f5c-42f2-a0e0-ce32949db23e.filesusr.com/ugd/4f270c_d40f5b6574a14ea4a69e9a17f718e70b.pdf?index=trueIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7413/9813/files/26545861212.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6880/1702/files/90208072115.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9920/2467/files/56552858694.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3853/8904/files/zotofemalem.pdfIn PDF document text
- https://e8ff8510-d58d-462c-8adc-d842972ccd8f.filesusr.com/ugd/b58d21_6e194bba47c247e89e014ea831689d06.pdf?index=trueIn PDF document text
- https://505e28fa-a390-4400-94ed-340fed0af414.filesusr.com/ugd/850f07_8dea679962294ed78c9af5a48ed68ce2.pdf?index=trueIn PDF document text
- https://3c3664dc-c505-4054-9246-fa7097bfd5d8.filesusr.com/ugd/45fd81_3331c155f86640b4ad7677eb378cced2.pdf?index=trueIn PDF document text
- https://9bcc4dec-c201-42dc-9771-af79c45e28b8.filesusr.com/ugd/9f06f8_0999615163d34bc5ac75752843eeb6bf.pdf?index=trueIn PDF document text
- https://273a9602-0f4a-479c-a89a-812a741fd839.filesusr.com/ugd/529dbf_83d08c21399946a18938f073f76e236c.pdf?index=trueIn PDF document text
- https://01c237ed-69a3-4f6c-b0b0-381a38a89394.filesusr.com/ugd/f3cb45_e7174537c80640b8b03b1361ff11f706.pdf?index=trueIn PDF document text
- https://1dcfca7b-ea10-4fdf-bb06-4c5c542ae363.filesusr.com/ugd/c162b3_5ef7cf8675284a429dd3b3e4798f4739.pdf?index=trueIn PDF document text
- https://d3512314-0a3d-4b19-b85d-0cf7d3d214a5.filesusr.com/ugd/738632_12c8c7bdf9064c62ba84114e036820b6.pdf?index=trueIn PDF document text
- https://a684e87b-1e09-470d-8ae2-9daf199ad086.filesusr.com/ugd/fdee49_96e1b4e225714680ad2b8b234fa2e497.pdf?index=trueIn PDF document text
- https://b6346132-eb87-4307-9f45-fde248d5e192.filesusr.com/ugd/8a4248_c0ddafa659674ef08d0a8a30108ac285.pdf?index=trueIn 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_off00006989.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6989 | 5620 bytes |
SHA-256: 19602a3bbdde554616127a892709a3a22408813a1dc17a41a7ba5f15d097a9b6 |
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font_01_sfnt_off00007c7f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C7F | 10256 bytes |
SHA-256: e3fcfe98fe6389bf413b9fb448fa08a4009712a7cbe77afc94489df4142f9681 |
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font_02_sfnt_off00009fe4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9FE4 | 16096 bytes |
SHA-256: 06514985949027998cb069cac656318875dfb01ceaa7b201620f0295f45dc01f |
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