MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass external link farm, with the primary link pointing to a known malicious redirector. The document body, though partially corrupted, includes text suggesting a lure for a free download, which is consistent with the observed link farm behavior. 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.ru/wix?keyword=chemical+technicians+ready+reference+handbook+free+download
- https://static.usrfiles.com/ugd/b8c837_c808b6b09c1e45648afa93b61cb4a8ea.pdf
- https://static.usrfiles.com/ugd/0a0016_1f048a7cd9d648ecbbaedf9c490c9dc8.pdf
- https://static.usrfiles.com/ugd/b8c837_e3c5f7b5177842d1a8af5e3d7de42d29.pdf
- https://static.usrfiles.com/ugd/b8c837_af2cee9a670f4813b69f73cfc40e8136.pdf
- https://cdn.shopify.com/s/files/1/0429/2801/3475/files/mifiwuriviruposukozujabi.pdf
- https://cdn.shopify.com/s/files/1/0431/9540/0356/files/27841466436.pdf
- https://cdn.shopify.com/s/files/1/0428/0667/3574/files/6132408921.pdf
- https://cdn.shopify.com/s/files/1/0433/7818/0257/files/wanajopamasezuxoremozidim.pdf
- https://cdn.shopify.com/s/files/1/0431/4628/1120/files/rac_breakdown_cover_uk_policy_booklet.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/24221046066.pdf
- https://cdn.shopify.com/s/files/1/0429/1015/4908/files/monubawolebojeno.pdf
- https://cdn.shopify.com/s/files/1/0437/4301/9159/files/armatures_standard_bton_arm.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52665001447.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_off000044bd.bin7b2c67181a51298d02465090e13d35d471fcd8b605705b629de36b2420256c07 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x44BD | 5564 bytes |
font_01_sfnt_off00005788.bine9f53118c7a61640377936f63e5a07cc77987e623594cb14c066b1d91415025f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5788 | 9464 bytes |
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