MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a malicious redirector link that points to ttraff.cc, a known malicious infrastructure. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The PDF also hosts a large number of external links, many pointing to shopify.com, which is indicative of a link farm SEO tactic to improve search engine ranking for malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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PHP webshell / backdoor source high WEBSHELL_PHPThe file contains PHP server-side code with the signature of a webshell/backdoor (request input fed to a command/code-exec sink). A webshell takes attacker input from an HTTP request and runs commands/code on the server. Flagged as a malicious hacktool artifact even when carried inside a document or archive — the code does not execute from the carrier, but the file is a webshell.
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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=regulation+of+flagellar+motility+during+biofilm+formation In PDF document text
- http://files.lukefranco.org/uploads/1/3/1/8/131872178/923fc.pdfIn PDF document text
- http://files.greengardensevents.com/uploads/1/3/1/4/131406605/9832932.pdfIn PDF document text
- http://runeruz.shopredbluffroundup.com/uploads/1/3/1/4/131453130/3825473.pdfIn PDF document text
- http://files.crystalfallstradingco.com/uploads/1/3/1/8/131856271/toxagope.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/1/0431/0374/8263/files/acanthospermum_hispidum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7211/1260/files/makolomifo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4997/5959/files/63731996189.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0056/9753/files/pukixom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0462/0097/9606/files/http_game_guardian._net.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0930/9848/files/student_solutions_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6858/8194/files/45984938559.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4888/5662/files/73002354698.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/6455/5680/files/relacion_entre_absorbancia_y_transmitancia.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7689/5398/files/628081452.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4809/0270/files/amharic_bible_free_for_desktop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0461/8960/9109/files/free_lagu_ariel_noah_jepang.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7795/8822/files/5251696195.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
🗂 Part of campaign:
crystalfallstradingco.com
5 samples
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00013f73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13F73 | 5296 bytes |
SHA-256: 014505652ac02962d24b09ce647b02b1d40f6d7b3a8c371e268fa0bd4d17550d |
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font_01_sfnt_off00015173.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15173 | 12216 bytes |
SHA-256: 7f3f1b604bd1dbf99aeb5762d708bb235fbc38e4629ba88729ed17062cf6ea77 |
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