MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm designed to improve search engine rankings, with the primary malicious link redirecting to a URL associated with malicious infrastructure. The document body, though heavily obfuscated, contains the text 'Ielts listening practise test 2019 w' and the malicious URL, suggesting a lure to trick users into clicking the link. 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=ielts+listening+practise+test+2019+w
- http://files.scottishfarmlandtrust.org/uploads/1/3/1/3/131384604/naxamejapono.pdf
- http://kotija.acct301.ehabacademy.com/uploads/1/3/0/8/130813714/bupolo.pdf
- http://zuvepugof.kellysporthorses.com/uploads/1/3/1/4/131454029/pejetuvod.pdf
- http://mulotolot.evakaminsky.com/uploads/1/3/1/4/131482992/7066335.pdf
- http://files.menashastrong.com/uploads/1/3/2/3/132303010/396424a5.pdf
- https://cdn.shopify.com/s/files/1/0444/4015/8374/files/entire_emoji_movie_script.pdf
- https://cdn.shopify.com/s/files/1/0429/8833/9354/files/dalikawake.pdf
- https://cdn.shopify.com/s/files/1/0437/2430/8630/files/aptis_test_preparation.pdf
- https://cdn.shopify.com/s/files/1/0433/6589/2245/files/59938509726.pdf
- https://cdn.shopify.com/s/files/1/0432/0113/4747/files/14098987676.pdf
- https://cdn.shopify.com/s/files/1/0444/5110/2887/files/nxstage_system_one_manual.pdf
- https://cdn.shopify.com/s/files/1/0431/4375/7985/files/46198683777.pdf
- https://cdn.shopify.com/s/files/1/0433/1231/6584/files/arcanum_unbounded.pdf
- https://cdn.shopify.com/s/files/1/0437/3990/6197/files/harley_davidson_golf_cart_manual.pdf
- https://cdn.shopify.com/s/files/1/0463/0822/9280/files/ncert_maths_textbook_for_class_5.pdf
- https://cdn.shopify.com/s/files/1/0430/8143/3242/files/stripe_test_credit_card_numbers.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_off00007cc4.bin99a731c964bf4715d9c14e490991d0a619bad61073997173b6063fea22813fc1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7CC4 | 5612 bytes |
font_01_sfnt_off00008ff8.bin38a66486403dc54e0c1f47103892ebcb947008096822674729aecc4cce805e44 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8FF8 | 10468 bytes |
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