MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, with one specifically pointing to a known malicious redirector. The document body, though obfuscated, includes the text "Basic english grammar test bank pdf" and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a large number of external PDF links further indicates a link farm or SEO poisoning attempt.
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.cc/pify?keyword=basic+english+grammar+test+bank+pdf
- http://files.denverchinesesource.com/uploads/1/3/2/8/132814544/dovokukumowepiwaz.pdf
- http://files.immlawcounsel.com/uploads/1/3/1/0/131069978/gipekuti.pdf
- http://files.thefastshopp.com/uploads/1/3/1/8/131856706/8751516.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/2060/6885/files/zasisulotatujafijefekumeg.pdf
- https://cdn.shopify.com/s/files/1/0431/4506/8699/files/refomowebuganisukejipi.pdf
- https://cdn.shopify.com/s/files/1/0434/5597/1492/files/nazuxakokuwokafisugazira.pdf
- https://cdn.shopify.com/s/files/1/0441/0490/8952/files/riverdale_pilot_script.pdf
- https://cdn.shopify.com/s/files/1/0432/0493/5835/files/susotejawif.pdf
- https://cdn.shopify.com/s/files/1/0436/2554/5890/files/react_native_bold_text.pdf
- https://cdn.shopify.com/s/files/1/0433/2378/5370/files/juvefeninubufuwurodofoja.pdf
- https://cdn.shopify.com/s/files/1/0435/6302/4547/files/luradajabe.pdf
- https://cdn.shopify.com/s/files/1/0432/4841/8971/files/53564306382.pdf
- https://cdn.shopify.com/s/files/1/0432/1778/0896/files/zifododadunu.pdf
- https://cdn.shopify.com/s/files/1/0440/7338/6136/files/tufinubibipi.pdf
- https://cdn.shopify.com/s/files/1/0434/5584/0409/files/alabaster_girl.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_off00004816.bin11e7cb617ebb7fa6c40fc5b1390a98e9e11f99ee8b63c961f0fa98c4870f212a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4816 | 5820 bytes |
font_01_sfnt_off00005bb6.bin7fe1400186adb0048c4a948f153fc7a7b071057d57e992d728972a0710bf849e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5BB6 | 10028 bytes |
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