MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a lure for a 'grammar worksheet grade 6' and embeds a large number of external links, many pointing to PDF documents. One of these links, https://ttraff.com/pify?keyword=grammar+worksheet+grade+6, is identified as a malicious redirector. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the extensive link farm and the malicious redirector indicate a phishing or redirection attack.
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=grammar+worksheet+grade+6
- http://files.ieselpicarral.com/uploads/1/3/1/4/131454102/roteba.pdf
- http://xoduvuda.kitsuneillustrations.com/uploads/1/3/1/6/131637649/7784417.pdf
- http://ninitij.doorcountybeachrentals.com/uploads/1/3/1/0/131070493/loxabufudino-giveb-tumukofajixo.pdf
- http://files.wortcunner.com/uploads/1/3/1/8/131856290/zomivelerese.pdf
- https://cdn.shopify.com/s/files/1/0431/7960/6177/files/15358301094.pdf
- https://cdn.shopify.com/s/files/1/0434/6196/8025/files/c_language_programming.pdf
- https://cdn.shopify.com/s/files/1/0431/0846/6845/files/34538120995.pdf
- https://cdn.shopify.com/s/files/1/0431/1285/7754/files/world_encyclopedia_free_download.pdf
- https://cdn.shopify.com/s/files/1/0432/7145/4883/files/authoritarianism_definition.pdf
- https://cdn.shopify.com/s/files/1/0431/6053/5196/files/xenalexovuxunuvedeb.pdf
- https://cdn.shopify.com/s/files/1/0432/6568/7717/files/36507386799.pdf
- https://cdn.shopify.com/s/files/1/0436/5503/7093/files/jj_benitez_caballo_de_troya_4.pdf
- https://cdn.shopify.com/s/files/1/0433/9829/9813/files/seganijusosidevepujares.pdf
- https://cdn.shopify.com/s/files/1/0440/3301/5958/files/segmentation_targeting_and_positioning_notes.pdf
- https://cdn.shopify.com/s/files/1/0429/0599/3375/files/wokawazexenajajifo.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_off0000742c.bin242dc1755bcdef8ee21df480fbe1a85ff642071490041e87abf6352dd46a5569 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x742C | 5548 bytes |
font_01_sfnt_off00008706.bin75e17bbb196839fa24cc624ad664dcc9af0b6873c1d1f471a33de55e539a804f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8706 | 10512 bytes |
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