MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a lure related to a quiz and embeds a large number of external links. One of these links, https://ttraff.ru/pify?keyword=good+old+days+quiz+with+answers, points to a known malicious redirector. The document also functions as a link farm, with many links pointing to PDFs hosted on cdn.shopify.com, suggesting a potential SEO poisoning or content distribution scheme. The ML classifier also 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.ru/pify?keyword=good+old+days+quiz+with+answers
- http://pajanow.accoladenyc.com/uploads/1/3/2/8/132814930/ed4c00a.pdf
- http://files.alanaggett.com/uploads/1/3/1/0/131070367/1183821.pdf
- http://files.strokeofredstudio.com/uploads/1/3/0/8/130873855/xanosetefawuka.pdf
- https://cdn.shopify.com/s/files/1/0434/5387/4329/files/aftershock_lux_guide.pdf
- https://cdn.shopify.com/s/files/1/0431/8245/6981/files/6235652514.pdf
- https://cdn.shopify.com/s/files/1/0433/3076/4968/files/44029051316.pdf
- https://cdn.shopify.com/s/files/1/0440/6244/1637/files/gudoleriwase.pdf
- https://cdn.shopify.com/s/files/1/0428/2171/4079/files/rasuvipizipujiwelor.pdf
- https://cdn.shopify.com/s/files/1/0441/2683/0744/files/hiragana_to_katakana.pdf
- https://cdn.shopify.com/s/files/1/0427/4031/8375/files/28293067359.pdf
- https://cdn.shopify.com/s/files/1/0434/7258/4861/files/respiratory_care_exam_review.pdf
- https://cdn.shopify.com/s/files/1/0432/7433/8472/files/58288987324.pdf
- https://cdn.shopify.com/s/files/1/0429/8581/6218/files/pakolobavuzewititabuja.pdf
- https://cdn.shopify.com/s/files/1/0436/0775/2866/files/48835143466.pdf
- https://cdn.shopify.com/s/files/1/0429/0969/6156/files/52652866245.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_off00005c5d.bina9a5f733678c32c3b30f84e91675a7d9efe4fe04135ffc3df64a08ababc69fbb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C5D | 5316 bytes |
font_01_sfnt_off00006e8a.bin611fb48ff84076766a239c360e84799f063646be3972171f2d8ce8a04d5f0bc9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E8A | 10316 bytes |
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