MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document contains a large number of external links, many of which point to benign Shopify URLs, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the same malicious URL and a benign URL, suggesting an attempt to disguise malicious activity within a large list of links. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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/wb?keyword=mumbai%20university%20idol%20courses%20pdf
- http://files.jonwray.com/uploads/1/3/2/3/132302910/puzupijuxotukok.pdf
- http://files.daughtersofthenewmoon.com/uploads/1/3/1/4/131406893/zevedabarij.pdf
- http://pakili.christianlitforafrica.org/uploads/1/3/1/1/131164250/9240955.pdf
- http://files.hopespringsvenue.com/uploads/1/3/0/8/130874480/3731519.pdf
- http://files.brianwhitson.me/uploads/1/3/2/6/132696113/fafuvapo.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/4101/4438/files/81567420715.pdf
- https://cdn.shopify.com/s/files/1/0438/1714/0386/files/transformers_mod_1._7._10.pdf
- https://cdn.shopify.com/s/files/1/0433/9331/9068/files/doxotaruf.pdf
- https://cdn.shopify.com/s/files/1/0434/7353/5138/files/15273415830.pdf
- https://cdn.shopify.com/s/files/1/0433/1539/6776/files/59979577757.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pekazojifedabefotekufof.pdf
- https://cdn.shopify.com/s/files/1/0428/0621/4819/files/botumikat.pdf
- https://cdn.shopify.com/s/files/1/0436/4982/6969/files/dozoxepakum.pdf
- https://cdn.shopify.com/s/files/1/0435/2992/8863/files/sans_discord_emoji.pdf
- https://cdn.shopify.com/s/files/1/0437/1808/2709/files/sazupudidarujofivabuvize.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007162.bin3d8c81069611b3acb2df51b6ce06f6be4b20879112efe815b85f550dc796ad0c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7162 | 5608 bytes |
font_01_sfnt_off00008468.binb0d63d6c50361eb8d31d35ad9d792fb477733a72a55e29803994c8d8bd7b995d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8468 | 10504 bytes |
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