MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a mass of external links, with the primary malicious link pointing to a redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=jquery+locale+number+format' and other PDF links, suggesting a link farm or redirection scheme. The ML classifier strongly supports the malicious verdict.
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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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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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=jquery+locale+number+format In PDF document text
- http://files.susanmaakestad.com/uploads/1/3/2/3/132303382/4fac45ad3a.pdfIn PDF document text
- http://files.4littleoneshilo.net/uploads/1/3/2/7/132710661/kefar_xubizesalubav_jupupofixexedul_pepebezoran.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/1/0434/0449/2950/files/33364597862.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6643/3429/files/nezonutuludizekoxolaxoxur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4194/5760/files/2328043800.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5652/8537/files/gipidabotobanaxafumidufa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6779/3820/files/khmer_calendar_1988.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1858/3192/files/98743270328.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4648/5672/files/15811949684.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4852/6246/files/sedigigoguxeko.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0252/5856/files/theory_of_computer_science_automata_languages_and_computation_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/6219719719.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9792/2461/files/antimicrobial_activity_thesis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8748/5342/files/82204798197.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006530.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6530 | 3332 bytes |
SHA-256: 970df20cf71482ca9ba5d21745dc8efc6fab06b090ba83e15261651377588f30 |
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font_01_sfnt_off00007132.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7132 | 5204 bytes |
SHA-256: cb4b0531619a59158b2106f6d5aacf368fa8645b64da41de634a58f9d8818f6c |
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font_02_sfnt_off000082e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x82E9 | 10656 bytes |
SHA-256: c796e4c819ae9e6a7da191fcc7de29da872c07ceae15a686545463d107d1bb52 |
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font_03_sfnt_off0000a74b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA74B | 17004 bytes |
SHA-256: 870e13d47c88a20759003fa8da1e037d41ac2ef16097b2357e995a07d486cb5b |
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