MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to a malicious URL, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body, though heavily obfuscated, appears to contain a lure related to 'Big bang theory characters fight list answers' and the malicious redirector URL. The ML classifier strongly indicates maliciousness, and the presence of numerous external links suggests a link farm or phishing attempt.
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=big+bang+theory+characters+fight+list+answers In PDF document text
- http://lebavo.livingwithachoice.com/uploads/1/3/1/4/131453134/01161af2.pdfIn PDF document text
- http://files.littleflowerfloraldesign.com/uploads/1/3/0/7/130738919/wikelarosap_timipojufes_zurugonokorola.pdfIn PDF document text
- http://fepelipuz.knotyourgirl.ca/uploads/1/3/1/8/131855997/nitaxefuwaxu_mumifazonoxem_majid.pdfIn PDF document text
- http://files.dancelikeacupcake.com/uploads/1/3/1/6/131606118/mapikelibezamuk.pdfIn PDF document text
- http://rufuranav.philmancusi.com/uploads/1/3/2/7/132710714/degotuvi.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/1/0430/1937/0659/files/git_stash_drop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4837/8280/files/tuzupejuxevazexa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/datufezon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3522/1403/files/40th_bcs_result_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vemuvuferakodumi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5049/9222/files/89858070271.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1189/7504/files/58572688830.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8812/4835/files/belkin_and_arcadyan_algorithm_apk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/1057/5771/files/que_es_ansiedad_generalizada.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5376/0162/files/farerijeboxunimop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1468/3813/files/95472599415.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1991/7719/files/tamil_to_english_spoken_english.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1995/9463/files/54771091829.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000191a2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x191A2 | 5524 bytes |
SHA-256: f9840d96d4a1f678b6d351f0bb731a5134c2590cbfcf412ea46c6d48c6101353 |
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font_01_sfnt_off0001a47f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A47F | 10352 bytes |
SHA-256: d766aec2509b88ecb9e3521bca45e5ddb138b05b695ea3b2e45fa2a999d55266 |
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