MALICIOUS
154
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 firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=pulmonary+edema+grading+pdf', suggesting a lure related to medical information. The presence of multiple Shopify links, some confirmed benign and others unknown, along with a direct link to a potentially malicious domain, indicates a link farm or redirection strategy. No scripts were extracted from this sample.
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=pulmonary+edema+grading+pdf
- http://files.churchbarmt.com/uploads/1/3/1/3/131383760/84f00d088d2.pdf
- https://cdn.shopify.com/s/files/1/0428/7466/7164/files/53422826769.pdf
- https://cdn.shopify.com/s/files/1/0433/4062/8136/files/75883225807.pdf
- https://cdn.shopify.com/s/files/1/0430/2074/6906/files/loketubesako.pdf
- https://cdn.shopify.com/s/files/1/0435/1400/3610/files/samsung_allshare_cast_for_android.pdf
- https://cdn.shopify.com/s/files/1/0431/5208/1053/files/wilojapiv.pdf
- https://cdn.shopify.com/s/files/1/0436/8151/3625/files/andreas_moritz_carti.pdf
- https://cdn.shopify.com/s/files/1/0432/1509/3917/files/rufuvuwot.pdf
- https://cdn.shopify.com/s/files/1/0432/6470/4665/files/career_development_interventions_in_the_21st_century_3rd_edition.pdf
- https://cdn.shopify.com/s/files/1/0430/3912/9751/files/bpsc_mains_question_bank.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nomevorijodasulalo.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_off00005bce.bin9649ecc86410e9e3bab53523b4465e6fe8fdc405fc5c610c2f161d64ccabbc67 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5BCE | 5284 bytes |
font_01_sfnt_off00006dbb.bin9a76df7e5bcfc032b09289b37fea8b4474fff481c7a60d288bf5fa29405a6242 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DBB | 10636 bytes |
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