MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains numerous embedded links, many of which point to known malicious redirector infrastructure or link farms. The primary URL, 'https://ttraff.ru/pify?keyword=sociolinguistics+book+by+hudson+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'sociolinguistics book by hudson pdf', suggesting a lure to trick users into downloading potentially harmful content disguised as academic material. The presence of a large number of external PDF links further indicates a link farm strategy, likely for SEO manipulation or to distribute malware.
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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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=sociolinguistics+book+by+hudson+pdf In PDF document text
- http://files.nimblehillbrewing.com/uploads/1/3/1/6/131606631/6214782.pdfIn PDF document text
- http://files.projectufo.org/uploads/1/3/0/7/130739381/4877757.pdfIn PDF document text
- http://files.dguchicago.com/uploads/1/3/0/7/130739174/3587020.pdfIn PDF document text
- http://files.nalinikrishnankutty.com/uploads/1/3/0/8/130874128/mewajuluxojuvafox.pdfIn PDF document text
- http://files.piasiagallery.com/uploads/1/3/0/8/130813965/bitij.pdfIn PDF document text
- http://files.troutbum.ca/uploads/1/3/2/7/132710655/046c6686a.pdfIn PDF document text
- http://files.healmylifemobile.com/uploads/1/3/0/9/130969993/7961412.pdfIn PDF document text
- http://files.thestrongfamiliescommission.com/uploads/1/3/1/8/131871909/votijaw_vemezuzatagokoz_tajolatogip_fudujed.pdfIn PDF document text
- http://files.stmarymagdalenewpg.org/uploads/1/3/1/8/131856531/badifa.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://wodoloz.files.wordpress.com/2020/06/31335584712.pdfIn PDF document text
- https://kurasedi.files.wordpress.com/2020/06/75628856084.pdfIn PDF document text
- https://dimufasuxuku.files.wordpress.com/2020/07/62161784884.pdfIn PDF document text
- https://wemuvepilupu.files.wordpress.com/2020/07/kezojulenolexajilejixusiz.pdfIn PDF document text
- https://norofila.files.wordpress.com/2020/06/rubegu.pdfIn PDF document text
- https://popusupoje.files.wordpress.com/2020/07/jatavimugideluwarep.pdfIn PDF document text
- https://jafelasug.files.wordpress.com/2020/07/93739883808.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fasexerogetotano.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/55864873889.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17232613021.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pufabupenidobuxix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xumilegimazuguvabunozanik.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_off000064f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x64F6 | 5284 bytes |
SHA-256: ec1e20ec368839439596f1f4b8358a2dfaf030ae34895f5418711ac576f32619 |
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font_01_sfnt_off000076e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76E0 | 10080 bytes |
SHA-256: 80e5a9133e1fb496c3ebef2e1e05c9d761d8e0151b50d9ff9b3a80b061c57b8c |
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