MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. Additionally, it contains a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO manipulation tactic. The ML classifier also strongly indicated maliciousness. The primary malicious IOC is the redirector URL, which is likely used to funnel users to a malicious site.
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/pify?keyword=physical+science+grade+11+text+book+pdf
- http://rerek.opendoorsspokane.com/uploads/1/3/1/4/131453540/josevado-zelikoraxel.pdf
- http://files.charlottecrone.com/uploads/1/3/1/8/131871621/8099088.pdf
- http://files.boyertownareamulti-service.org/uploads/1/3/2/7/132740619/af77c51.pdf
- https://cdn.shopify.com/s/files/1/0430/7881/1797/files/rizatafemolexapu.pdf
- https://cdn.shopify.com/s/files/1/0438/4571/4077/files/calcium_gluconate_davis.pdf
- https://cdn.shopify.com/s/files/1/0435/8062/0963/files/little_league_baseball_rules.pdf
- https://cdn.shopify.com/s/files/1/0431/6289/4485/files/mikumowuxarebutatexoxu.pdf
- https://cdn.shopify.com/s/files/1/0449/4472/0040/files/marketing_strategy_definition.pdf
- https://cdn.shopify.com/s/files/1/0437/5547/1002/files/edema_paru_adalah.pdf
- https://cdn.shopify.com/s/files/1/0431/3173/2125/files/netulojifired.pdf
- https://cdn.shopify.com/s/files/1/0431/6997/2392/files/monatifebebivaj.pdf
- https://cdn.shopify.com/s/files/1/0435/3074/8055/files/kutugi.pdf
- https://cdn.shopify.com/s/files/1/0437/7346/0641/files/9800242408.pdf
- https://cdn.shopify.com/s/files/1/0438/1478/1085/files/57746542114.pdf
- https://cdn.shopify.com/s/files/1/0432/7522/3200/files/zugiwegowezudoketipev.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/28603075132.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/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005540.bin6de7efaef980ccc5a49226670d4cf618749e0ef4a3ff859f6be6c9ea4fb0d06e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5540 | 5844 bytes |
font_01_sfnt_off00006931.bincd1852bebcc1059275634c59e72bf0da03ab1d76214d2c371b1871836a7a57d5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6931 | 9744 bytes |
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