MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=cryptic+quiz+answer+key+c43'. This URL is presented within the document body, disguised as a quiz answer key. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many hosted on cdn.shopify.com, suggesting an attempt to distribute malicious content or manipulate search engine results. The ML classifier strongly indicates 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.ru/pify?keyword=cryptic+quiz+answer+key+c43
- http://files.mindfulserenityonline.com/uploads/1/3/0/8/130874629/pezozulaleku.pdf
- http://files.iananthonycoleman.com/uploads/1/3/0/7/130776718/9342694.pdf
- http://luzori.allyiseman.com/uploads/1/3/0/7/130775052/xuxadom.pdf
- http://files.rachelteaglelpc.com/uploads/1/3/1/4/131406390/rogipenikamojivet.pdf
- https://cdn.shopify.com/s/files/1/0431/4333/2000/files/pamikig.pdf
- https://cdn.shopify.com/s/files/1/0433/8368/5274/files/bodyguard_movie_hd_free.pdf
- https://cdn.shopify.com/s/files/1/0441/3086/1208/files/22607654073.pdf
- https://cdn.shopify.com/s/files/1/0427/5650/5756/files/bona_fide_marriage_affidavit_sample.pdf
- https://cdn.shopify.com/s/files/1/0428/1604/5222/files/katalog_mccb_schneider.pdf
- https://cdn.shopify.com/s/files/1/0434/2261/3654/files/zijononunolutawizid.pdf
- https://cdn.shopify.com/s/files/1/0432/6470/4662/files/microbiologia_veterinaria.pdf
- https://cdn.shopify.com/s/files/1/0434/0501/7255/files/13176613596.pdf
- https://cdn.shopify.com/s/files/1/0434/1740/3559/files/55940235687.pdf
- https://cdn.shopify.com/s/files/1/0429/6015/8873/files/42295749695.pdf
- https://cdn.shopify.com/s/files/1/0428/2561/3468/files/fovonanovosonopanenexon.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_off000090c8.binf7121cd787da1dfb4719588a6dff36265464b6b788cd82916e4b0184effc5c7c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x90C8 | 5484 bytes |
font_01_sfnt_off0000a3b5.binf16f3cee334dd81f7cca79e4a0b0e2206ec976e74cfb72b45e9b4d70091194bb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA3B5 | 11260 bytes |
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