MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, which is a common technique for delivering malware or phishing pages. The document body, though heavily obfuscated, contains a URL that appears to be part of this redirection chain. The presence of numerous external links, many hosted on Shopify, suggests a link farm designed to improve SEO for malicious content. The ML classifier strongly indicates malicious intent.
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=chemistry+formulas+pdf
- http://files.colleengeorges.com/uploads/1/3/1/4/131406473/a921fe6ff3d39.pdf
- http://files.thepoppyrocksball.co.uk/uploads/1/3/0/8/130813526/8555866.pdf
- http://files.carlylbodnar.com/uploads/1/3/0/7/130775528/0d19677667d6211.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86372263330.pdf
- https://cdn.shopify.com/s/files/1/0436/7230/5817/files/loxewu.pdf
- https://cdn.shopify.com/s/files/1/0431/7180/7381/files/dedejuku.pdf
- https://cdn.shopify.com/s/files/1/0433/5471/8358/files/99699232047.pdf
- https://cdn.shopify.com/s/files/1/0435/7187/1912/files/tudanurugevofemufibasik.pdf
- https://cdn.shopify.com/s/files/1/0434/2897/0647/files/xokeso.pdf
- https://cdn.shopify.com/s/files/1/0430/9526/1348/files/xusij.pdf
- https://cdn.shopify.com/s/files/1/0434/0934/2621/files/54726347502.pdf
- https://cdn.shopify.com/s/files/1/0450/4797/1990/files/ekms_1b.pdf
- https://cdn.shopify.com/s/files/1/0433/4931/1646/files/74457912719.pdf
- https://cdn.shopify.com/s/files/1/0437/3990/6197/files/loken_s_final_words_to_odyn.pdf
- https://cdn.shopify.com/s/files/1/0437/3879/2085/files/21774422560.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_off00005be5.bin9ef3c9f80ed23f90bcb56690ec822caebbdb026e4bae8ad1d6d5d0a26863ab32 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5BE5 | 5288 bytes |
font_01_sfnt_off00006db7.bin7178da9b66572e4be088f0eef14fe30c176d28bc3117db7232bfc7e8e3893348 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DB7 | 9932 bytes |
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