MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many pointing to benign Shopify domains, but one critical link directs to a known malicious redirector. This suggests a tactic of disguising malicious infrastructure within a larger link farm, likely to evade detection or for SEO poisoning. 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.ru/pify?keyword=biogeochemical+cycles+webquest+phosphorus+cycle+answers
- http://files.fernando-guimaraes.com/uploads/1/3/2/6/132695915/piwelowor.pdf
- http://dorev.mwenya-uganda.org/uploads/1/3/2/7/132740449/f01c0271.pdf
- http://files.trinityclaremont.org/uploads/1/3/2/6/132681144/e5220a85.pdf
- http://zuseluful.woodworkingbeyond.com/uploads/1/3/1/3/131384635/7124040ac1c2.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/0649/2823/files/mefudekonezaturanute.pdf
- https://cdn.shopify.com/s/files/1/0437/6294/2113/files/poparaxatorikede.pdf
- https://cdn.shopify.com/s/files/1/0428/8475/9711/files/63096128401.pdf
- https://cdn.shopify.com/s/files/1/0428/0057/8723/files/jefavoz.pdf
- https://cdn.shopify.com/s/files/1/0431/2494/9153/files/dukivebozagapusenewonane.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34993807018.pdf
- https://cdn.shopify.com/s/files/1/0432/2426/8968/files/levofloxacino_750_mg_bula.pdf
- https://cdn.shopify.com/s/files/1/0447/6187/4583/files/7677807625.pdf
- https://cdn.shopify.com/s/files/1/0429/7896/7703/files/josawivopog.pdf
- https://cdn.shopify.com/s/files/1/0431/2960/2205/files/29687149336.pdf
- https://cdn.shopify.com/s/files/1/0436/0473/8206/files/bulbul_bole_sun_babul_song.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_off00005380.binddc0a22e930738658d933186d6f976cccb36290f7be161d5635d02beada65c57 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5380 | 5856 bytes |
font_01_sfnt_off0000675a.bin66e3b696553d4c4ac7873529578f1860f2b3285d4a5b60180d158f0228b7e7c6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x675A | 10148 bytes |
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