MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a malicious redirector link that points to a URL designed to lure users with a quiz-related keyword. This URL then leads to a link farm of numerous PDF files hosted on cdn.shopify.com. The ML classifier strongly indicated maliciousness, and the PDF structure suggests an attempt to obscure the malicious intent by presenting a large number of seemingly benign links.
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=halloween+challenge+quiz+riddle+answers
- http://files.deborahvandelden.com/uploads/1/3/1/8/131856290/5115099.pdf
- https://cdn.shopify.com/s/files/1/0461/3698/3720/files/bihar_daroga_previous_year_question.pdf
- https://cdn.shopify.com/s/files/1/0432/7571/4715/files/deriz.pdf
- https://cdn.shopify.com/s/files/1/0436/4229/0336/files/free_download_msword2007.pdf
- https://cdn.shopify.com/s/files/1/0427/8976/5276/files/xebebebutowakoze.pdf
- https://cdn.shopify.com/s/files/1/0431/8904/3358/files/91595195195.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tuwaz.pdf
- https://cdn.shopify.com/s/files/1/0434/5643/0230/files/sekodopapedemanujelot.pdf
- https://cdn.shopify.com/s/files/1/0436/5071/1705/files/pexogatevidejidafojeni.pdf
- https://cdn.shopify.com/s/files/1/0434/1946/7927/files/83180685207.pdf
- https://cdn.shopify.com/s/files/1/0432/0506/6913/files/jekatalisenaxemurep.pdf
- https://cdn.shopify.com/s/files/1/0432/4599/4146/files/movies_full_hd_new.pdf
- https://cdn.shopify.com/s/files/1/0434/6295/1077/files/86394525463.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ad44.bin19889608ec1ffbeb1bf85857328ba290cde11b4ad2986e7e400fe2d8a8206734 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD44 | 5428 bytes |
font_01_sfnt_off0000bfb6.binbc5a444dc83f0aa4af57ae35d9527a19283f85802e97e9f06274c5054930e507 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFB6 | 2840 bytes |
font_02_sfnt_off0000cbcc.bin2bf7205172b1b64ee7e3c962debee444d03b3635acc7c6b4de0fce2e86b51a15 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBCC | 15456 bytes |
font_03_sfnt_off0000fbca.bin64f21e55c2f29c6f605e8f9fd96e7f7b34f9b4a26fdc717ddead948457370e3b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBCA | 16148 bytes |
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