MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm designed to redirect users to malicious infrastructure, masquerading as a resource for engineering books. The primary malicious URL, https://ttraff.ru/pify?keyword=automobile+engineering+book+by+kirpal+singh+pdf, is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other potentially benign Shopify links, suggesting a social engineering tactic to drive traffic to the malicious site. No scripts were extracted, limiting the analysis of further payload delivery or execution.
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.ru/pify?keyword=automobile+engineering+book+by+kirpal+singh+pdf In PDF document text
- http://files.addictionmadison.com/uploads/1/3/1/3/131380126/rotesoj_dibelawevurag_dagomezexuvuful_jixagesufa.pdfIn PDF document text
- http://files.atitrainingstore.com/uploads/1/3/1/3/131397946/pefewago-vuzobadetumixuw.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/1/0431/3006/0955/files/68375344147.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3445/0840/files/barukezojitaxafepawife.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2641/4748/files/senodiwuzokexedopififipa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5797/1362/files/forestry_mod_1._10._2.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7048/7712/files/84752062400.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5651/9578/files/beach_buggy_racing_apk_mod_rexdl.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8106/4853/files/how_to_set_up_act_ffxiv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7551/8107/files/lullabye_billy_joel_piano_sheet_music.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8699/5863/files/demewemenetutusegun.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0462/3033/9735/files/20005027170.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6463/1195/files/balanceamento_redox_exercicios.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/4376/3862/files/cartoon_hd_app_for_android_tv_box.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_off000060fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60FC | 5632 bytes |
SHA-256: 410bf8c76c6ab3f1f915b31b0ccdc687ecaba6ef5619cc699dc26ea2f1a8e57c |
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font_01_sfnt_off000073f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73F5 | 10224 bytes |
SHA-256: 67ef4c36307ae3b11a5e86ffd014eb7a5073e9ebb28b58ff8d6b84b73e9f7dac |
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font_02_sfnt_off000096c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x96C4 | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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