MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded links that point to a known malicious redirector infrastructure, disguised as a game download. The ML classifier strongly indicated maliciousness, and the document body, though heavily obfuscated, contains the same redirector URL. This suggests an attempt to lure users to a malicious site, likely for phishing or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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/wb?keyword=fruit%20ninja%20game%20unblocked In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://static.usrfiles.com/ugd/2e16aa_36492180c47d4163ad8303643ca22103.pdfIn PDF document text
- https://static.usrfiles.com/ugd/9e41f0_2eab0882858047439d645738c361de62.pdfIn PDF document text
- https://static.usrfiles.com/ugd/69695d_0a641a7f993c4e49af8a7f026e3bfee8.pdfIn PDF document text
- https://static.usrfiles.com/ugd/02beb7_4f8d2d7691f24edfbbc93af04f403cdb.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_62de667f83a548d18f15d58114afdbd6.pdfIn PDF document text
- https://static.usrfiles.com/ugd/69a512_04f833ed9e814f84b0e7b1a84c150e57.pdfIn PDF document text
- https://static.usrfiles.com/ugd/5b9365_bb126de62b9f415680a9064248e30abf.pdfIn PDF document text
- https://static.usrfiles.com/ugd/6e3131_0cf1c194596d49b9a20fd31dbe281f4d.pdfIn PDF document text
- https://static.usrfiles.com/ugd/a18aa6_d9258ca0f8bd4a7a8d621aeb8c5f788e.pdfIn PDF document text
- https://static.usrfiles.com/ugd/defcb2_d840b864377140d09c655789c2aa09a1.pdfIn PDF document text
- https://static.usrfiles.com/ugd/9dda13_78c0ace24ff54514b8c1b776bfd7e51a.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b916f4_74d17b4663784f9092e00eb4e1b02105.pdfIn PDF document text
- https://static.usrfiles.com/ugd/3b5dd9_0d640effbc584fd0bc232c12c01a5980.pdfIn PDF document text
- https://static.usrfiles.com/ugd/1715bf_19931fe33dcf4802b34bf6bd3bbf9a15.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn 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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00009c0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9C0D | 6676 bytes |
SHA-256: 63b56845cf9a0b63bd1e0c615a76e231494e07ce049a896d11879254b756f20f |
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font_01_sfnt_off0000acb4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xACB4 | 28768 bytes |
SHA-256: d8d787b0058eba608f15294068ebace69398182027f73a5b4d2b4e745afe6c96 |
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font_02_sfnt_off000107d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107D2 | 5316 bytes |
SHA-256: 4466ffc2cd4304af7cd0dd2e4fe73736509f2add180a2b9ee5e0655f281638b2 |
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font_03_sfnt_off000119da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119DA | 17116 bytes |
SHA-256: add90099d69b49c7bdad36d20a97c5b627fba592f8d570c94857107695da7802 |
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font_04_sfnt_off00015077.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15077 | 16556 bytes |
SHA-256: 1fa9529675fb579510bab96d7d11babd18a9e6169d8641d84f2873b6b8d19c28 |
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