MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
This PDF file contains a critical heuristic firing for a malicious redirector link, directing users to 'https://ttraff.cc/pify?keyword=calibre+light+font'. The document body, though heavily obfuscated, also contains this URL and numerous other links hosted on cdn.shopify.com, suggesting a link farm or redirection strategy. The ML classifier also strongly flagged this PDF as malicious. The primary attack vector appears to be social engineering via a deceptive link within the PDF.
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=calibre+light+font
- http://files.calvaryokinawa.com/uploads/1/3/0/7/130776103/9714817.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/71895705060.pdf
- https://cdn.shopify.com/s/files/1/0428/0123/4076/files/faliwatazisiguroregofijak.pdf
- https://cdn.shopify.com/s/files/1/0433/3967/7861/files/xopuwuwoxitolupefu.pdf
- https://cdn.shopify.com/s/files/1/0428/5209/0022/files/wadipenara.pdf
- https://cdn.shopify.com/s/files/1/0446/0979/8307/files/printable_preschool_feelings_worksheets.pdf
- https://cdn.shopify.com/s/files/1/0434/5711/8374/files/49867250542.pdf
- https://cdn.shopify.com/s/files/1/0431/8180/1629/files/oscilloscope_guide.pdf
- https://cdn.shopify.com/s/files/1/0432/5670/9273/files/tulozije.pdf
- https://cdn.shopify.com/s/files/1/0428/7922/1927/files/dulinesulijakivarirodu.pdf
- https://cdn.shopify.com/s/files/1/0438/0780/1501/files/82485568353.pdf
- https://cdn.shopify.com/s/files/1/0431/8072/0294/files/33758821095.pdf
- https://cdn.shopify.com/s/files/1/0429/8014/7359/files/52249662178.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000482f.binb7fc65ab8a2766b9937bdb8173e1ced1c6f93b300700c00940e8534291f2471a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x482F | 4896 bytes |
font_01_sfnt_off000058d2.bin86b23e67b9278f9515ae0d170673830e061be5ebbab5324dc8de9876d80c75ca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x58D2 | 9788 bytes |
font_02_sfnt_off00007aa3.bine5245523bd71a78e06ca3300da63f55ad096e28dd8c1a5e83e138be64f7d0aee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AA3 | 16084 bytes |
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