MALICIOUS
254
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
This PDF file contains multiple heuristics indicating malicious intent, including links to known malicious redirectors and a link farm designed for SEO manipulation. The document body, though partially obfuscated, contains a URL that impersonates Microsoft, suggesting a credential phishing attempt or a lure for a second-stage download. The presence of numerous PDF links and a redirector URL points towards a campaign distributing malicious content.
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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Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISHDocument impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://ttraff.ru/pify?keyword=transmitting+form+t1013.
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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
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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=transmitting+form+t1013 In PDF document text
- http://files.thelowvisionstore.org/uploads/1/3/1/4/131438157/jigasujevufax_bekix_xidilo.pdfIn PDF document text
- http://files.markneeley.com/uploads/1/3/0/7/130775023/nevowefawunamudalag.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/1/0433/4108/6888/files/82033001326.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1586/3452/files/fuxade.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4900/0864/files/pdf_sociologia_general.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9513/8208/files/linux_system_administrator_roles_and_responsibilities.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2720/8091/files/93340271338.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8850/2174/files/98861230249.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5572/6238/files/gogopala.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5486/6333/files/tigimejarabawolupiveri.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5113/8715/files/definition_of_growth_and_development_in_psychology.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_off00007af3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AF3 | 5360 bytes |
SHA-256: 8d6d5eba18a3f5fa8d5bf81d281cd5f354434f74138b5443e37b048f4d300c85 |
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font_01_sfnt_off00008d12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D12 | 10076 bytes |
SHA-256: 3a8f6612a2a299a018509e84745e50513c87741bd999f0c773243961c37a5ca9 |
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