MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or redirection strategy. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used to obscure the final malicious destination. The document body, though partially corrupted, contains text related to biology topics and the malicious URL, indicating a lure to disguise the malicious intent. The presence of multiple unknown URLs further supports the malicious nature of the document.
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=difference+between+mitosis+and+meiosis+table+pdf
- http://files.freshmediatt.com/uploads/1/3/1/4/131437599/wozewuzawuvev.pdf
- http://files.forksandblooms.com/uploads/1/3/0/8/130815009/kuguwuvowawez.pdf
- http://files.miltonwildcatfootball.com/uploads/1/3/1/6/131606165/wajas.pdf
- https://cdn.shopify.com/s/files/1/0431/2986/4343/files/prentice_hall_chemistry_textbook_answers.pdf
- https://cdn.shopify.com/s/files/1/0438/5452/8677/files/git_conflict_resolution_tool.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66264102559.pdf
- https://cdn.shopify.com/s/files/1/0434/9041/0658/files/lurofakun.pdf
- https://cdn.shopify.com/s/files/1/0429/7719/8229/files/gapojirakuvovinog.pdf
- https://cdn.shopify.com/s/files/1/0431/4680/5404/files/zipubikepasojozivu.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99289858455.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43692268827.pdf
- https://cdn.shopify.com/s/files/1/0428/5284/3676/files/basaxarikes.pdf
- https://cdn.shopify.com/s/files/1/0435/1744/4264/files/catamaran_rx_pa_forms.pdf
- https://cdn.shopify.com/s/files/1/0429/5471/9395/files/vuvudiwuxagejesav.pdf
- https://cdn.shopify.com/s/files/1/0431/0922/0501/files/nijovisaxonelexiwam.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_off00006c61.bin98b629e6e77cfbcaab57dc97f1b87ff2d5a8439f0b94344b9c913982bc7fb2e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C61 | 5532 bytes |
font_01_sfnt_off00007f2b.bin9fbe2051387e4f4d390098cce4904a106ca55dc97db3dce7f58ac516c511d2eb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F2B | 11216 bytes |
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