MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.ru, which is presented as a search result for 'Acido formico nombre iupac'. The document body, though heavily obfuscated, also contains this URL. The PDF also hosts a large number of links to other PDFs on Shopify domains, likely as part of a link farm to improve SEO for 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.ru/pify?keyword=acido+formico+nombre+iupac In PDF document text
- http://kasub.codeblaque.com/uploads/1/3/2/6/132682892/5bd2f79.pdfIn PDF document text
- http://files.cullensailworks.com/uploads/1/3/2/3/132303382/e2c87e042836.pdfIn PDF document text
- http://fexajem.mosaicchurch.org.uk/uploads/1/3/2/8/132814930/varuxo_zudadef_zadopuson.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/1/0429/3863/0300/files/8125585297.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6628/6490/files/rebimudofis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7170/9092/files/11109020290.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1938/6526/files/nokukafesewedetapulinu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26443777516.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6129/6790/files/41087937789.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0657/4240/files/65012444340.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1411/1903/files/mazapemos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1455/3763/files/wings_of_fire_book_12_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2385/9873/files/prey_neuromod_fabrication.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7482/2044/files/vovibirufigojaxewidexuru.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8306/3715/files/33366355256.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0298/5622/files/samples_of_abstracts_in_apa_format.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b7db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB7DB | 6492 bytes |
SHA-256: b9c1bd2281f23f09d905494077011cda678d8ff8a20e62f41a46584ce81a564d |
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font_01_sfnt_off0000c810.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC810 | 5220 bytes |
SHA-256: 3c89ed774966df94897986015b13e859a0ba1b546822e7485ed61da488708793 |
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font_02_sfnt_off0000d9aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9AA | 15196 bytes |
SHA-256: 43d3d830ec5f4e2593e52f93d4857106e05f6b7329815f4e84efd3086c65e0c4 |
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