MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document was flagged by a machine learning classifier and heuristics indicate it contains a large number of external links, with at least one pointing to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=atomic+structure+test+questions+pdf', suggesting a lure related to test questions. The primary function appears to be a link farm designed to distribute malicious content.
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=atomic+structure+test+questions+pdf
- http://files.happyphoneunlocking.com/uploads/1/3/1/4/131406893/zitum.pdf
- http://natobi.wmclb.com/uploads/1/3/0/7/130739564/457953.pdf
- http://files.hogtownexperience.com/uploads/1/3/0/7/130775462/6173850.pdf
- http://files.bbcgibson.com/uploads/1/3/0/7/130740464/xivesiso.pdf
- https://cdn.shopify.com/s/files/1/0433/4593/6534/files/foxovujese.pdf
- https://cdn.shopify.com/s/files/1/0432/3462/3643/files/lobakidudojibasemafunona.pdf
- https://cdn.shopify.com/s/files/1/0431/3733/5464/files/63075890545.pdf
- https://cdn.shopify.com/s/files/1/0431/6869/4432/files/86718814432.pdf
- https://cdn.shopify.com/s/files/1/0431/5663/5805/files/english_grammar_tenses_free_download.pdf
- https://cdn.shopify.com/s/files/1/0433/9413/8268/files/62427555615.pdf
- https://cdn.shopify.com/s/files/1/0433/9659/5861/files/daketupuguwixid.pdf
- https://cdn.shopify.com/s/files/1/0434/3431/1845/files/lonadimolodunumevovidumem.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zebegevuda.pdf
- https://cdn.shopify.com/s/files/1/0428/5192/6183/files/xomevozesogesogifixolat.pdf
- https://cdn.shopify.com/s/files/1/0430/7494/5184/files/dakerelegakokajojese.pdf
- https://cdn.shopify.com/s/files/1/0438/4178/1920/files/borderlands_3_luck_stat.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_off00004b49.bin5be92a7f9d93d0b791aeaf89c3572273e2cb4fa55a4139a62c74b7d52ef40795 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4B49 | 5176 bytes |
font_01_sfnt_off00005cd0.bin17bbf5ee6adb26b3cad2117dbaa94f6c91194b70a0c1fa4843db1263a997c1de |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5CD0 | 9752 bytes |
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