MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a heuristic firing for a malicious redirector link, which is further supported by the presence of a large number of external PDF links, indicating a link farm. The document body, though corrupted, contains text suggesting a lure for a 'Cambridge dictionary download'. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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=cambridge+dictionary+download+pdf In PDF document text
- http://mijikiwap.dashkaroth.com/uploads/1/3/0/7/130776499/4473823.pdfIn PDF document text
- http://files.wathsportsfan.com/uploads/1/3/1/3/131398221/166e7e48c.pdfIn PDF document text
- http://files.bhpfineminiatures.com/uploads/1/3/1/4/131453651/korokebigetume.pdfIn PDF document text
- http://files.claysmithcreativesltd.com/uploads/1/3/2/6/132695832/sonepaf.pdfIn PDF document text
- http://radakeze.hvswug.org/uploads/1/3/0/8/130874276/nobexiwite_sigibamunode_fazisuboraru.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0428/4825/6156/files/fizokisifoledawikimoxokul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7741/8656/files/zoman.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0962/2687/files/90319675082.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3318/8762/files/54404369830.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6797/2513/files/71925143121.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0326/4667/files/jezefixe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58933331969.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6372/1637/files/zuzub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8920/6174/files/lojebijijedokijuzakede.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/paxotaxazojulilinitulo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7810/7811/files/almost_is_never_enough_piano_sheet_music.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0183/9775/files/tamubalokupul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7607/3125/files/53117806537.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000643b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x643B | 5444 bytes |
SHA-256: 74771eb71e6e03a8dc7b88c57434e4af5712947983d79a6f4445c8e514be1e7d |
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font_01_sfnt_off000076bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76BF | 10372 bytes |
SHA-256: bca3cb1b69cf40684dbaf89fd777e47a363a28b4d5fc597a804460d1f6cb643e |
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font_02_sfnt_off00009a3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A3A | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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