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 PDFs hosted on Shopify and other domains. One critical heuristic identified a link to a known malicious redirector infrastructure at 'ttraff.com'. The document body, though partially corrupted, suggests a lure related to a 'stars galaxies and the universe worksheet', which is likely a pretext for phishing or malware delivery. 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.com/pify?keyword=stars+galaxies+and+the+universe+worksheet
- http://files.mrainc.com/uploads/1/3/0/7/130740251/govom.pdf
- http://files.jacksonmanncc.org/uploads/1/3/0/7/130776743/xowibafunobo_lerolewesogew_kitasa.pdf
- http://files.artinnitaly.com/uploads/1/3/2/6/132682790/413358c552.pdf
- http://files.embracingliterature.com/uploads/1/3/1/4/131437085/wesosexewub-jageru-gapawilidegu.pdf
- https://cdn.shopify.com/s/files/1/0433/8545/4757/files/nujegevutudutemodiki.pdf
- https://cdn.shopify.com/s/files/1/0435/1462/6202/files/95047766692.pdf
- https://cdn.shopify.com/s/files/1/0437/7686/8510/files/jajipupodakalemeduzele.pdf
- https://cdn.shopify.com/s/files/1/0433/5609/4615/files/hydrology_and_floodplain_analysis.pdf
- https://cdn.shopify.com/s/files/1/0428/2623/6071/files/48762226050.pdf
- https://cdn.shopify.com/s/files/1/0443/0443/3308/files/vpn_express_free.pdf
- https://cdn.shopify.com/s/files/1/0434/3404/9703/files/21632435010.pdf
- https://cdn.shopify.com/s/files/1/0432/9730/8840/files/36657768559.pdf
- https://cdn.shopify.com/s/files/1/0432/0513/2456/files/becks_prime_menu.pdf
- https://cdn.shopify.com/s/files/1/0431/4244/7265/files/98554145875.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_off00004fa0.bin4f07bf3a5d3483ae243fbf7461639bd479e751696c95e8d7ac707ca3869669e9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4FA0 | 5472 bytes |
font_01_sfnt_off0000623f.bine1579ce9bac47aff9c5581706544b7da37ca3aca51b31fbc003e63f39219c58e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x623F | 10216 bytes |
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