MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.ru/pify?keyword=november+2019+calendar+template+free`. This URL is embedded within the document body, which also contains text related to a calendar template, suggesting a lure. The PDF also exhibits characteristics of a link farm, with numerous external links, many hosted on `cdn.shopify.com`. The ML classifier strongly flagged this PDF as malicious.
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=november+2019+calendar+template+free
- http://files.glassandsticks.com/uploads/1/3/1/3/131381919/57493b477bd.pdf
- http://kofel.writingtotheworld.com/uploads/1/3/2/7/132740708/6145278.pdf
- https://cdn.shopify.com/s/files/1/0437/9249/8850/files/pofulirutuwulojijuxoje.pdf
- https://cdn.shopify.com/s/files/1/0433/5560/3094/files/84984691432.pdf
- https://cdn.shopify.com/s/files/1/0431/7229/8913/files/xerezetijokorixig.pdf
- https://cdn.shopify.com/s/files/1/0430/9558/9013/files/assignment_abroad_times_epaper_download.pdf
- https://cdn.shopify.com/s/files/1/0434/7727/0692/files/algebra_2_book_common_core.pdf
- https://cdn.shopify.com/s/files/1/0432/3069/1496/files/kafubarifamef.pdf
- https://cdn.shopify.com/s/files/1/0432/5467/7662/files/booster_sound_pc.pdf
- https://cdn.shopify.com/s/files/1/0430/9218/1153/files/91174358505.pdf
- https://cdn.shopify.com/s/files/1/0459/6059/3567/files/carousel_vector_free.pdf
- https://cdn.shopify.com/s/files/1/0430/9578/5629/files/tapufupeko.pdf
- https://cdn.shopify.com/s/files/1/0464/6046/9400/files/platform_shoes_online_south_africa.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_off00009e9e.bin57db30c72f9a716dc42fcb5a7dc54f0e2ab64bae399237d4b2ec05d2afacdbe5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9E9E | 5776 bytes |
font_01_sfnt_off0000b235.bincc05ff2f0d1d243fc592a9c66ed7d3aed2f974d543e7aee41513ed4f24662a28 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB235 | 10536 bytes |
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