MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains multiple heuristics indicating malicious redirection and a link farm, with a primary redirector URL pointing to a suspicious domain. The ML classifier strongly flagged this PDF as malicious. The embedded content, though obfuscated, includes a URL that is likely used to download a second-stage payload or redirect to a phishing site.
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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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.com/pify?keyword=augusto+c%25C3%25A9sar+sandino+pdf In PDF document text
- http://netetem.friendsofmaduraiseed.org/uploads/1/3/1/4/131407406/5287505.pdfIn PDF document text
- http://files.joy-of-syntax.com/uploads/1/3/1/8/131857334/9739071.pdfIn PDF document text
- http://files.sacredspace-yoga.com/uploads/1/3/1/6/131637168/vivitevagesal-vigibefure-xifobozibalamok.pdfIn PDF document text
- http://files.gypsies77.com/uploads/1/3/2/7/132740277/23a5c79e41.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/1/0437/0386/1416/files/21592064046.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1126/7990/files/74623008438.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4114/3454/files/tobegijuvurefunigewize.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/3215656586.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4047/2214/files/sezotosumexer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6690/1148/files/jujorolekevawegisafafa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4642/8059/files/9930512005.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1197/3026/files/30407479905.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4396/3548/files/58289181199.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6888/3098/files/biodiesel_business_plan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2737/2964/files/dr_all_terrain_mower.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9112/2584/files/50771695074.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0273/2448/files/powershell_change_password.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6096/0159/files/best_tablet_for_storing_and_readings.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_off0000cdcd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDCD | 5420 bytes |
SHA-256: 504f0be5f62d89ecdffdb970abad823ce75e512ec1aa67be4679979e5fc63abc |
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font_01_sfnt_off0000e00f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE00F | 11444 bytes |
SHA-256: e4ddcd3f061bd8f26093c5b9cb80bfe13fa1fe4a4c11f2b50502394232c4dc33 |
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