MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm and a critical redirector link pointing to malicious infrastructure. The ML classifier strongly indicates maliciousness. The primary malicious URL is https://ttraff.cc/wb?keyword=hp%20elitebook%202540p%20service%20manual%20download, which is likely used to redirect the user to further malicious content. The document body contains obfuscated text and the malicious URL, suggesting a social engineering lure.
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/wb?keyword=hp%20elitebook%202540p%20service%20manual%20download
- http://files.sevahealingarts.com/uploads/1/3/0/7/130776255/nelipipe.pdf
- http://files.blackcreekcc.org/uploads/1/3/1/4/131408970/3499070.pdf
- http://files.giftedsupportnetwork.org/uploads/1/3/1/4/131453097/4810043.pdf
- https://cdn.shopify.com/s/files/1/0437/9112/2584/files/cae_exam_maximiser.pdf
- https://cdn.shopify.com/s/files/1/0434/6036/2392/files/18587009808.pdf
- https://cdn.shopify.com/s/files/1/0431/0253/5840/files/63593153884.pdf
- https://cdn.shopify.com/s/files/1/0429/6255/0940/files/anfotericina_b_farmacologia.pdf
- https://cdn.shopify.com/s/files/1/0435/3949/7112/files/72760360168.pdf
- https://cdn.shopify.com/s/files/1/0431/7557/5709/files/appareil_genital_masculin_et_feminin.pdf
- https://cdn.shopify.com/s/files/1/0440/4533/6726/files/dizuto.pdf
- https://cdn.shopify.com/s/files/1/0430/9427/8293/files/19943335223.pdf
- https://cdn.shopify.com/s/files/1/0431/1806/7876/files/kazesalusigowagabujup.pdf
- https://cdn.shopify.com/s/files/1/0434/2392/4376/files/binomial_expansion_test.pdf
- https://cdn.shopify.com/s/files/1/0433/6222/2232/files/juleletutipelodowosovejo.pdf
- https://cdn.shopify.com/s/files/1/0448/4333/5837/files/google_play_brand_guidelines.pdf
- https://cdn.shopify.com/s/files/1/0436/9442/4232/files/najedunuvojopatulipu.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_off00004a6d.bin2ccc30aabe99a8180f94c032542d87dcf1dd9c61a5f5df88c7420cd1a890ac4c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4A6D | 6024 bytes |
font_01_sfnt_off00005eec.bin2fb2c1f89f2d62ef86a731b0011b697b9223604a6c5b6b760a4ec5e9eb005fb1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EEC | 10216 bytes |
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