MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm with numerous external links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.com). This suggests a social engineering tactic to trick users into visiting a malicious site under the guise of providing educational material. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious redirector.
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=biology+class+11+ncert+pdf+2019
- http://bomexoz.remnantsbarbersho.org/uploads/1/3/0/8/130814070/6877d9f873da.pdf
- http://files.davidbuiles.com/uploads/1/3/1/0/131071067/lewakerigejige.pdf
- https://cdn.shopify.com/s/files/1/0428/4124/3814/files/76021062506.pdf
- https://cdn.shopify.com/s/files/1/0427/4244/8295/files/5058205789.pdf
- https://cdn.shopify.com/s/files/1/0430/3575/4650/files/40201835032.pdf
- https://cdn.shopify.com/s/files/1/0431/4651/0498/files/future_simple_active_and_passive_exercises.pdf
- https://cdn.shopify.com/s/files/1/0434/4751/7341/files/78495068085.pdf
- https://cdn.shopify.com/s/files/1/0437/3191/0821/files/windows_10_linux_subsystem.pdf
- https://cdn.shopify.com/s/files/1/0438/9378/4728/files/1656445259.pdf
- https://cdn.shopify.com/s/files/1/0437/1388/8405/files/debewewebadebavibij.pdf
- https://cdn.shopify.com/s/files/1/0434/0698/3335/files/valurodamuketikoroludurap.pdf
- https://cdn.shopify.com/s/files/1/0428/6365/7119/files/bose_qc35_manual.pdf
- https://cdn.shopify.com/s/files/1/0462/6762/9730/files/88405731932.pdf
- https://cdn.shopify.com/s/files/1/0437/2480/0151/files/xenaparobizanuzaruvidizud.pdf
- https://cdn.shopify.com/s/files/1/0434/2641/4748/files/acetic_acid_msds.pdf
- https://cdn.shopify.com/s/files/1/0465/0683/6118/files/59454393886.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_off00006034.bind5373ca8bbc825657c1d916e2140ff13dfc46e4dc4638674ed30f218aa545987 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6034 | 5956 bytes |
font_01_sfnt_off0000748e.binc5cd349f063cb267a4121fc03150398325f74a4f00d4c508b6ef4b5883a4bb97 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x748E | 10192 bytes |
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