MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains embedded links, with one pointing to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'IRS estimated tax worksheet 2019', suggesting a lure to trick users into clicking the malicious link. The presence of numerous other links, many hosted on Shopify, indicates a link farm strategy, likely to obscure the final malicious destination.
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=irs+estimated+tax+worksheet+2019
- http://files.booksbymarilyn.com/uploads/1/3/0/7/130740062/varin_tudewefaboxo_jutemane_lekiviperumile.pdf
- http://files.mnjeweler.com/uploads/1/3/1/4/131437740/fomurogoxufirofaliz.pdf
- https://cdn.shopify.com/s/files/1/0437/8443/7922/files/achyutam_keshavam_lyrics.pdf
- https://cdn.shopify.com/s/files/1/0431/1603/6257/files/6th_grade_staar_math_practice_worksheets.pdf
- https://cdn.shopify.com/s/files/1/0435/7606/6211/files/kunubutofuramutabonanap.pdf
- https://cdn.shopify.com/s/files/1/0428/7827/1641/files/pec_minor_stretch.pdf
- https://cdn.shopify.com/s/files/1/0435/9880/7202/files/emulator_android_game_free_fire.pdf
- https://cdn.shopify.com/s/files/1/0430/8451/3444/files/73067224123.pdf
- https://cdn.shopify.com/s/files/1/0429/7624/7967/files/98498520734.pdf
- https://cdn.shopify.com/s/files/1/0436/9927/3882/files/carmina_burana_lyrics.pdf
- https://cdn.shopify.com/s/files/1/0431/0132/3421/files/tojuju.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_off00006b3f.bin66679929a6b3fa03f5b83c10ac2e10215680c1cdb5893282a8227c4bbf630e5d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B3F | 5676 bytes |
font_01_sfnt_off00007e7b.bin7bb3df090a8a7f90db11a1c557d87248b0ff748aa2727a552e225a05ace38cb0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E7B | 10472 bytes |
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