MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL that leads to this redirector. The PDF also contains a mass external PDF link farm, with many links pointing to benign Shopify URLs, likely as a camouflage. The primary malicious URL is https://ttraff.com/pify?keyword=reduce+pdf+file+size+acrobat+xi+pro, which is designed to redirect the user to further 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.com/pify?keyword=reduce+pdf+file+size+acrobat+xi+pro
- http://files.womenwritersweb.org/uploads/1/3/1/0/131069950/928d65af.pdf
- http://files.lordbassenterprise.com/uploads/1/3/1/4/131482950/6d53b08.pdf
- http://gesobimuk.thegardensatsancarlos.com/uploads/1/3/1/6/131636648/rekivuworogizezake.pdf
- https://cdn.shopify.com/s/files/1/0436/4717/2768/files/91907222778.pdf
- https://cdn.shopify.com/s/files/1/0434/8936/2082/files/ginufofinavuse.pdf
- https://cdn.shopify.com/s/files/1/0433/9390/8892/files/44047312178.pdf
- https://cdn.shopify.com/s/files/1/0436/0994/8322/files/cover_letter_for_bank_job.pdf
- https://cdn.shopify.com/s/files/1/0428/3197/0471/files/financial_mathematics_formulas.pdf
- https://cdn.shopify.com/s/files/1/0447/8281/3341/files/exercise_present_simple_continuous.pdf
- https://cdn.shopify.com/s/files/1/0433/0065/1158/files/rewewir.pdf
- https://cdn.shopify.com/s/files/1/0431/4395/4594/files/jojazalebifa.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/68905528383.pdf
- https://cdn.shopify.com/s/files/1/0431/3330/4986/files/76368654346.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vatajimawi.pdf
- https://cdn.shopify.com/s/files/1/0435/8042/4351/files/fevakonibujaxupenipa.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_off000055c4.binb0c60aa5d9164811c632931a305284f3a16aae77bcdcb5f5b80650e649707593 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x55C4 | 5412 bytes |
font_01_sfnt_off00006844.binfdb162e9d598d10a5b2e388a1579f392387ca84fc14cf6d24942798a90ed114f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6844 | 10048 bytes |
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