MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm and a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=bls+cpr+book+pdf', indicating a lure to download a PDF. This suggests the document is designed to redirect users to malicious content.
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=bls+cpr+book+pdf
- http://files.cloudchiefcompany.com/uploads/1/3/2/7/132710603/6414413.pdf
- http://files.somersetrehab.com/uploads/1/3/2/6/132682833/1207190.pdf
- http://files.photosbyjoierey.com/uploads/1/3/1/4/131453276/2764440.pdf
- https://cdn.shopify.com/s/files/1/0432/1912/4382/files/55093784611.pdf
- https://cdn.shopify.com/s/files/1/0437/6041/8970/files/masizajuxasepeviwelew.pdf
- https://cdn.shopify.com/s/files/1/0430/0134/8255/files/34571502713.pdf
- https://cdn.shopify.com/s/files/1/0433/2729/1544/files/10309645870.pdf
- https://cdn.shopify.com/s/files/1/0430/7088/1946/files/82337128246.pdf
- https://cdn.shopify.com/s/files/1/0429/6074/8695/files/vixaraxupemubewonan.pdf
- https://cdn.shopify.com/s/files/1/0438/9208/0795/files/mixamexuwefokig.pdf
- https://cdn.shopify.com/s/files/1/0435/8039/1585/files/18204483898.pdf
- https://cdn.shopify.com/s/files/1/0434/0809/7445/files/24175140840.pdf
- https://cdn.shopify.com/s/files/1/0427/5906/1670/files/dumuloxuzikufonejedujak.pdf
- https://cdn.shopify.com/s/files/1/0436/2724/9826/files/75581626016.pdf
- https://cdn.shopify.com/s/files/1/0431/0004/5465/files/19621902669.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_off00005e55.binb664355be905fef973adf645f22542dfe1b286170b1ad344cffa2e696c3319a5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E55 | 5192 bytes |
font_01_sfnt_off00007012.bin2d15050831c2a310d67d11ab88aa81af8d9159240a7e0b9151fed9f1d221397e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7012 | 10208 bytes |
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