MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link to a known malicious redirector, disguised within text that appears to be exam questions. The PDF also hosts a large number of external links, many of which point to benign Shopify URLs, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs supports a phishing or redirection attack pattern.
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.ru/pify?keyword=police+constable+exam+questions+and
- http://files.upstatecluttercoach.com/uploads/1/3/2/8/132814306/9955826.pdf
- http://files.worldofsong.com/uploads/1/3/0/7/130776607/5210395.pdf
- http://jimixezuv.lasvegasmetrohonorguard.com/uploads/1/3/0/7/130740113/1612767.pdf
- http://files.latina1059fm.com/uploads/1/3/0/8/130814346/makexakadolax_kiruvamidukaji.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0435/3189/4944/files/2019_monthly_calendar_template_word_october.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66541571973.pdf
- https://cdn.shopify.com/s/files/1/0445/3980/5855/files/naruto_shippuden_mobile_games_free.pdf
- https://cdn.shopify.com/s/files/1/0437/2915/8295/files/11416711506.pdf
- https://cdn.shopify.com/s/files/1/0437/1054/6070/files/changing_between_fractions_decimals_and_percentages_worksheets.pdf
- https://cdn.shopify.com/s/files/1/0434/0921/1557/files/24391578258.pdf
- https://cdn.shopify.com/s/files/1/0428/2040/3356/files/28619980153.pdf
- https://cdn.shopify.com/s/files/1/0429/2080/4511/files/5095951678.pdf
- https://cdn.shopify.com/s/files/1/0462/6389/4173/files/lucy_fairy_tail_naked.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000766f.bincbb1e2f024cc87f6999efd8d99951aad2675a0fd8a53965c94f5c9fb8cf3075e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x766F | 5324 bytes |
font_01_sfnt_off00008867.bin3cd9850ad93df06355327bbc352c3188cd6fc21d0998ec8ebba72d2ba207292c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8867 | 10528 bytes |
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