MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though partially corrupted, contains the URL 'https://ttraff.com/pify?keyword=ontslag+van+werknemersbrief+steekpro', which is also present in the heuristics. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to various domains, including several Shopify-hosted PDFs.
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=ontslag+van+werknemersbrief+steekpro
- http://rubilo.agbio-inc.com/uploads/1/3/2/6/132683130/316ed0b4faced.pdf
- http://files.mycousa.com/uploads/1/3/2/8/132814958/kulebek-rezorusozu.pdf
- http://files.portlandgiftguide.com/uploads/1/3/1/1/131163540/7493212.pdf
- https://cdn.shopify.com/s/files/1/0429/8443/9971/files/allen_bradley_powerflex_525_manual.pdf
- https://cdn.shopify.com/s/files/1/0432/9986/4734/files/47973296137.pdf
- https://cdn.shopify.com/s/files/1/0431/2255/7095/files/96531816307.pdf
- https://cdn.shopify.com/s/files/1/0432/6598/2632/files/91315196621.pdf
- https://cdn.shopify.com/s/files/1/0440/1161/8462/files/motulek.pdf
- https://cdn.shopify.com/s/files/1/0454/7071/1958/files/86894297930.pdf
- https://cdn.shopify.com/s/files/1/0434/0459/1255/files/valulamagavuranagotuvofek.pdf
- https://cdn.shopify.com/s/files/1/0430/3768/7962/files/61498301603.pdf
- https://cdn.shopify.com/s/files/1/0431/0394/4853/files/brixx_pizza_nutrition.pdf
- https://cdn.shopify.com/s/files/1/0436/2862/6080/files/vedudesarizebure.pdf
- https://cdn.shopify.com/s/files/1/0429/3620/5479/files/asma_gina_2018_espaol.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/97072231683.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_off00005ca8.bin669860ffbf5ff655d041f19f4d71489a4a5533c04d8118e4f098b650e7cea9e5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5CA8 | 5604 bytes |
font_01_sfnt_off00006fb4.bincf4a94d45c1eb9027b28cea8c987d69eea18a0c83df51e2b8ec6434fb4c20400 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FB4 | 10720 bytes |
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