MALICIOUS
254
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
T1059.001 PowerShell
The PDF contains multiple heuristics indicating malicious intent, including a link to a known malicious redirector and a large number of links to external PDFs, suggesting a link farm. The document body explicitly mentions 'Adblock plus for android review' and contains a URL pointing to a redirector, aligning with a social engineering lure to install malicious content or redirect to a phishing site. The presence of a link farm and a malicious redirector indicates a probable attempt to distribute malware or phish credentials.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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=adblock+plus+for+android+review In PDF document text
- http://mapajuxal.colorandlightpaintingworkshop.com/uploads/1/3/0/7/130738730/4936763.pdfIn PDF document text
- http://dupovo.spikemclarrity.com/uploads/1/3/0/7/130738948/muxujerimimenoga.pdfIn PDF document text
- http://files.naturescrossingstore.com/uploads/1/3/1/4/131407439/7355814.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/1/0433/2837/2904/files/metal_cutting_and_machine_tools_by_pakirappa_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0444/8750/8135/files/accounting_for_management_sk_bhattacharya.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8179/3698/files/fisioterapia_para_hernia_de_disco_lumbar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8491/4583/files/ielts_reading_passage_categorising_love_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0454/5609/7432/files/70645481249.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72707516801.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9515/4069/files/zizivap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7732/1379/files/gefajifanavogafitimagula.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8099/1388/files/41895831195.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/9502/9915/files/buninafaxofaxolonatedete.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6755/5481/files/94979035643.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_off000071fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71FA | 5496 bytes |
SHA-256: 145e001b983c587e7b50b82e07518da2029d169dbb94f9a0c80afa5c0c7317bf |
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font_01_sfnt_off000084c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x84C9 | 10980 bytes |
SHA-256: d231909d8fa3531af17358eef142941e4b66a54a38bb6ef5c56507450964e216 |
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