MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains numerous links, many of which point to a redirector infrastructure associated with malicious activity. The document impersonates a signing service, likely to trick users into clicking these links to download malware. The ML classifier strongly indicated maliciousness, and the presence of a redirector URL further supports this assessment.
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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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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Document signing service impersonation lure medium SE_DOCUSIGN_LUREDocument impersonates DocuSign, Adobe Sign, or a similar signing service in a signing-request context
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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=adobe+acrobat+pro+2017++windows In PDF document text
- http://nemalinos.francisweller.net/uploads/1/3/1/4/131454526/jenoj_gozifexisomo_samusol_vimaxarufes.pdfIn PDF document text
- http://files.duachmusic.com/uploads/1/3/1/6/131606373/96557275cd.pdfIn PDF document text
- http://files.aleighacisrael.com/uploads/1/3/0/7/130740118/kupojamobefawe_sipijabat_vosakimumab_nolesosugamiwi.pdfIn PDF document text
- http://files.christianhartsough.com/uploads/1/3/0/8/130873903/1240921.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/1/0428/9573/6988/files/1809500906.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3708/2271/files/apa_table_example.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5692/2777/files/43901866098.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1093/1358/files/aprendizagem_colaborativa_livro.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4321/5767/files/86797601530.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2756/1621/files/revofemusowif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1393/0142/files/venukikobigasevopot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9455/7350/files/gipuxabanedifoniwiriro.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1044/0862/files/lenubu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3826/0903/files/45880052012.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6676/1120/files/danigufani.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7613/2774/files/cooks_essentials_pressure_cooker.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9663/6580/files/66586708249.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0716/5095/files/xemasujakunexipulupelov.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_off00006218.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6218 | 5452 bytes |
SHA-256: e60154ca4904019f36d3bcaf954b944628265f38a95a421d94bb978dd23e3b39 |
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font_01_sfnt_off000074bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74BF | 10180 bytes |
SHA-256: d2b47559a46f35c52acb52f61426d7e77b9661790ec7b3af6738ee3bbaa7d2e7 |
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font_02_sfnt_off000097aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x97AA | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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