MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links, with one prominent URL identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to a 'skill sheet' and the malicious URL, suggesting a lure. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to obscure the ultimate destination and potentially spread malicious content. The ML classifier strongly flagged this PDF as malicious.
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=needle+cricothyrotomy+skill+sheet
- http://files.tacdistancerunners.com/uploads/1/3/0/7/130775998/nifakaguzavawes-xukugu-lurofumuteva.pdf
- http://files.samuellutheran.net/uploads/1/3/2/8/132815343/zevitikeselesojigit.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/0633/6930/files/dirozobugizakemipaxugebed.pdf
- https://cdn.shopify.com/s/files/1/0433/5117/9416/files/59626021976.pdf
- https://cdn.shopify.com/s/files/1/0441/0481/0648/files/sexikutuditekoneperod.pdf
- https://cdn.shopify.com/s/files/1/0430/5892/1621/files/35088200415.pdf
- https://cdn.shopify.com/s/files/1/0430/4021/1105/files/huawei_mate_10_android_9_mexico.pdf
- https://cdn.shopify.com/s/files/1/0432/8819/9332/files/angry_birds_rio_2_apk.pdf
- https://cdn.shopify.com/s/files/1/0430/1045/7753/files/5604639583.pdf
- https://cdn.shopify.com/s/files/1/0434/0878/5562/files/pimevutelapunila.pdf
- https://cdn.shopify.com/s/files/1/0429/8499/7017/files/80755890913.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000066a5.bin7e8e5802bd013b58e4f222d98cd7d69714f922a91d1fb54447aa6acce99aa142 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66A5 | 5104 bytes |
font_01_sfnt_off000077e4.bind9b0c08d837f4a291459eec5f08a74835cf7c935d598b9c33f7bf6dc9c85c415 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77E4 | 9764 bytes |
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