MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a malicious redirector link, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. This link, 'https://ttraff.ru/pify?keyword=alibaba+aur+40+chor+story+pdf', is designed to lead users to potentially harmful content. The PDF also exhibits characteristics of a link farm, with numerous external links, as flagged by PDF_SEO_LINK_FARM. The ML classifier strongly supports the malicious nature of this document.
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=alibaba+aur+40+chor+story+pdf In PDF document text
- http://files.danielepiserchia.com/uploads/1/3/1/6/131607407/pafukujuzebix.pdfIn PDF document text
- http://files.kind-mind.org/uploads/1/3/2/8/132816096/diwevuf_liniv_rebuxamixakep_pudubekibikarog.pdfIn PDF document text
- http://files.wamindaworkingstockdogs.net/uploads/1/3/2/6/132695575/xabudadizularazi.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/1/0434/2880/6807/files/marvel_universe_comics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3262/5831/files/kaiji_ultimate_survivor_episode_1.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0802/4985/files/84747649888.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5085/2762/files/71705615973.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5283/4717/files/80231117278.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7298/8071/files/45051227706.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8171/2287/files/english_grammar_in_telugu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4746/1788/files/new_functional_training_for_sports_2nd_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5491/6003/files/le_moringa_et_ses_vertus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4179/1895/files/rubidenamaparupisajix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3651/5221/files/54506583016.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6304/9376/files/problems_of_budgeting_in_nigeria.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
- http://www.gnu.org/copyleft/gpl.htmRegularIn 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_off0000a670.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA670 | 4504 bytes |
SHA-256: 5635ff5be5e5480d75e9b0c28f759df1a7d5850f9a3de3ef3dc0336c74c0b25a |
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font_01_sfnt_off0000b646.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB646 | 5704 bytes |
SHA-256: 738513808fa0bf7bf632a21ffd5f0eeca79c1ede8b821abf1969a64067338e9b |
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font_02_sfnt_off0000c9b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9B1 | 5252 bytes |
SHA-256: 3f637fd57eb77bd8d7e6fddabac4981ca7c10246717db15613f34ddfdea0cc29 |
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font_03_sfnt_off0000da22.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA22 | 10376 bytes |
SHA-256: 14816233e06d784207ab54e2a18f9686cdf6d2ed46050d95fbbcf650b3d463eb |
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font_04_sfnt_off0000fdf7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDF7 | 17724 bytes |
SHA-256: 32e3acb650de156f5c4b6d16f007b06118e81c97d93810d3715f3c86025e1e76 |
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