MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a high number of embedded links, many pointing to external resources, a technique often used for SEO poisoning or to host malicious content. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely the primary vector for delivering a subsequent payload. The document body, though partially corrupted, contains text suggesting it is a user guide, which serves as a lure. The ML classifier strongly indicated maliciousness.
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.cc/pify?keyword=eras+pdws+user+guide+2019
- http://fipuxejib.truahealth.com/uploads/1/3/1/3/131379591/5187e00d38d6dd.pdf
- http://devej.rmdiai.org/uploads/1/3/2/6/132695663/7b6fa88e9.pdf
- http://nirawav.elksfairwayfoundation.org/uploads/1/3/0/7/130739625/jejudagi.pdf
- https://cdn.shopify.com/s/files/1/0436/9979/8166/files/icom_ic-_718_manual.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dojezurin.pdf
- https://cdn.shopify.com/s/files/1/0434/2143/4023/files/60041271361.pdf
- https://cdn.shopify.com/s/files/1/0434/1989/3927/files/we_got_married_english_subtitles.pdf
- https://cdn.shopify.com/s/files/1/0434/0236/3047/files/baaghi_movie_full_3gp.pdf
- https://cdn.shopify.com/s/files/1/0444/2878/7879/files/complicated_malaria_treatment.pdf
- https://cdn.shopify.com/s/files/1/0431/6856/3355/files/pdf_econometrics_solutions.pdf
- https://cdn.shopify.com/s/files/1/0429/1418/5372/files/5652577810.pdf
- https://cdn.shopify.com/s/files/1/0436/0755/6258/files/wirejubekiruziletumupubuf.pdf
- https://cdn.shopify.com/s/files/1/0429/6451/7023/files/telofodimupator.pdf
- https://cdn.shopify.com/s/files/1/0434/8402/0898/files/beneath_the_skin_album.pdf
- https://cdn.shopify.com/s/files/1/0432/8875/6384/files/43384247758.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_off00004b02.bin1105dfa551530d3790f38ef81be2e47033481f9da60ac69a02501238bda5ae5b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4B02 | 5624 bytes |
font_01_sfnt_off00005e4d.binecaa95ab206c8f5746ecc72a34eaac1016cc703c97f595694045d75e9c8ea648 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E4D | 9980 bytes |
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