MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=order+of+adjectives+worksheet+pdf+grade+5'. The document body, though partially corrupted, also contains this URL and appears to be a lure for educational content. The presence of a link farm and the ML classifier's high confidence further support the malicious nature of this document, likely intended for phishing or malware delivery.
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=order+of+adjectives+worksheet+pdf+grade+5
- http://files.nhcss.org/uploads/1/3/1/4/131453312/2517371.pdf
- http://files.digitalanddice.com/uploads/1/3/0/8/130874134/4398132.pdf
- http://kenilebij.artlynchactingcoach.com/uploads/1/3/1/6/131607163/8462312.pdf
- https://cdn.shopify.com/s/files/1/0430/6658/9335/files/gastroenteritis_dieta.pdf
- https://cdn.shopify.com/s/files/1/0429/7123/4467/files/87183251388.pdf
- https://cdn.shopify.com/s/files/1/0433/6313/9733/files/blue_panther_books_leseprobe.pdf
- https://cdn.shopify.com/s/files/1/0431/3546/7669/files/sikuritasovigegano.pdf
- https://cdn.shopify.com/s/files/1/0428/6195/3191/files/betipatowesitubag.pdf
- https://cdn.shopify.com/s/files/1/0432/3305/0779/files/27984746067.pdf
- https://cdn.shopify.com/s/files/1/0429/7680/5018/files/23168292829.pdf
- https://cdn.shopify.com/s/files/1/0430/8307/1650/files/53618451649.pdf
- https://cdn.shopify.com/s/files/1/0434/9784/8996/files/79304665594.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/79265304831.pdf
- https://cdn.shopify.com/s/files/1/0429/2077/1750/files/19831357372.pdf
- https://cdn.shopify.com/s/files/1/0431/8406/2622/files/fewosexedokugapesi.pdf
- https://cdn.shopify.com/s/files/1/0438/9843/7784/files/wojizazamazemuxinija.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_off000052b0.binbc4030932ad19e0fb2ca91d5509aefc9c3e1cf2243de60fbfff7f5ab8862af21 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x52B0 | 5828 bytes |
font_01_sfnt_off000066a5.binb3a26c146544142ac716193dd64cca6bf69e9a726ceecf15ef4d2c2173bdf307 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66A5 | 9852 bytes |
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