MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.com) known for malicious activity. The document body, though heavily obfuscated, contains URLs that appear to be part of a link farm designed to lure users into downloading further malicious content. The ML classifier also strongly indicated maliciousness.
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.com/pify?keyword=l%25C6%25B0u+file+pdf+kh%25C3%25B4ng+ch%25E1%25BB%2589nh+s%25E1%25BB%25ADa+%25C4%2591%25C6%25B0%25E1%25BB%25A3c In PDF document text
- http://files.lexmobilepetgroomer.com/uploads/1/3/2/7/132712006/lamimowor_gosonepazi.pdfIn PDF document text
- http://files.vapath.org/uploads/1/3/1/4/131409709/6197041.pdfIn PDF document text
- http://files.thedialoguezone.com/uploads/1/3/1/4/131453048/vutoxewux.pdfIn PDF document text
- http://files.fairdare.org/uploads/1/3/0/7/130776644/c311eceb3ef6.pdfIn PDF document text
- http://files.dentistrathmines.com/uploads/1/3/2/6/132683154/jirojoxovugapakokoj.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/1/0427/5778/3718/files/woxesudebivazowazedafu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0563/9836/files/92283012770.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0002/1667/files/vezirixuxek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9930/6650/files/leadership_and_teamwork.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9569/5266/files/bemukozenarejap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0482/9589/files/4832354737.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5362/8062/files/softball_evaluation_form.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8259/6004/files/bedipopuwofarafoweba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1179/2286/files/13857073149.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7152/7325/files/zarelaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7251/1386/files/geniwotaweso.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000059ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x59BA | 6196 bytes |
SHA-256: 353cb5b0a6cfda9f99e53c2fdd0da3d0abd888f250a29de7818912d8053b472b |
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font_01_sfnt_off00006de3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DE3 | 20700 bytes |
SHA-256: 70bfaa0b406b30661f07120117e4cc17eaf04c713dcb5c4e5cb201dde3b0bcb8 |
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font_02_sfnt_off00009ad5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9AD5 | 16204 bytes |
SHA-256: e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15 |
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