MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure via the URL https://ttraff.com/pify?keyword=single+dial+buttress+thread+form+gauge. Additionally, it contains a link farm pointing to numerous PDF files hosted on cdn.shopify.com and other domains. The ML classifier also strongly indicated maliciousness. The presence of a link farm suggests an attempt to obscure the final malicious destination or to distribute multiple lures.
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=single+dial+buttress+thread+form+gauge
- http://files.juheonlee.com/uploads/1/3/1/4/131452842/xezumegenarunojova.pdf
- http://poduv.crystalsgymnastics.org/uploads/1/3/0/8/130873995/3794328.pdf
- http://files.myspecialcrown.com/uploads/1/3/1/3/131380163/berugowelibi.pdf
- http://files.heartandminddevon.co.uk/uploads/1/3/2/6/132682701/4605415.pdf
- http://mulefed.litezone.ca/uploads/1/3/2/6/132681556/9425954.pdf
- https://cdn.shopify.com/s/files/1/0429/7788/6367/files/debussy_syrinx_sheet_music.pdf
- https://cdn.shopify.com/s/files/1/0434/2353/1175/files/mcdougal_littell_algebra_1_resource_book_answers.pdf
- https://cdn.shopify.com/s/files/1/0428/2328/6940/files/jofasofus.pdf
- https://cdn.shopify.com/s/files/1/0432/0555/8436/files/65870070553.pdf
- https://cdn.shopify.com/s/files/1/0430/5253/1869/files/39610080798.pdf
- https://cdn.shopify.com/s/files/1/0433/9482/6396/files/marriage_certificate_online_download.pdf
- https://cdn.shopify.com/s/files/1/0432/8056/4392/files/examen_de_ingles_toefl.pdf
- https://cdn.shopify.com/s/files/1/0432/2515/3698/files/horizontal_list_css.pdf
- https://cdn.shopify.com/s/files/1/0436/3006/7865/files/23672913233.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_off0000622b.bin4d21e3302fec5907ed00f2ddb4a02df182007abe00e53397f33e1ead648d85f1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x622B | 5564 bytes |
font_01_sfnt_off000074e0.bin52328f00696f69061d202678786c6fd6150187256beb1b644bbc8ee0baab403f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74E0 | 10184 bytes |
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