MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains a reference to the same malicious URL, suggesting an attempt to disguise malicious links as educational material. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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=glencoe+pre+algebra+worksheet+answer+key
- http://files.lkhardware.com/uploads/1/3/0/7/130739570/1460863.pdf
- http://files.reikidesigns.com/uploads/1/3/1/3/131383924/tatug.pdf
- http://files.bucknerinsurance.com/uploads/1/3/1/3/131398292/nokugewek_bonevukutok.pdf
- http://files.ginacampbellemdr.com/uploads/1/3/0/8/130814288/3ef3007.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/2303/1720/files/91660446317.pdf
- https://cdn.shopify.com/s/files/1/0430/0380/5847/files/20851425857.pdf
- https://cdn.shopify.com/s/files/1/0438/5131/7408/files/genetics_12th_ncert.pdf
- https://cdn.shopify.com/s/files/1/0429/2096/8351/files/pamomeputufarifapunadidan.pdf
- https://cdn.shopify.com/s/files/1/0429/9803/8679/files/81873357433.pdf
- https://cdn.shopify.com/s/files/1/0433/4957/3784/files/31632779214.pdf
- https://cdn.shopify.com/s/files/1/0436/2957/6352/files/xogezonigigowibujoxivufik.pdf
- https://cdn.shopify.com/s/files/1/0430/0252/7897/files/lasugobamerisumetib.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/soreluseloxajakikolo.pdf
- https://cdn.shopify.com/s/files/1/0434/0878/5562/files/vixoromofuzesomufaf.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_off0001cd01.bin40130c57ca0bdbcedb901c0ae6ae977bf05ca2a37b97641ad37417782ebdcf5c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1CD01 | 5624 bytes |
font_01_sfnt_off0001e02d.bin33fa375ccf5262f25a775c2ac7f8c849cdce2316a536edf1e01c9c43cf2d934f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1E02D | 14916 bytes |
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