MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a prominent link to 'ttraff.ru', identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and appears to be a lure for users to apply for an EIN. The PDF also hosts a large number of links to Shopify domains, likely for SEO manipulation or to obscure the malicious redirector. The ML classifier 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=apply+for+ein+form
- http://tafaxe.damnearcabins.com/uploads/1/3/1/4/131437363/wapomi.pdf
- http://files.endurancepilatesandyoga.com/uploads/1/3/2/7/132710491/vavujomobironi.pdf
- http://files.davisonavenuepta.com/uploads/1/3/1/4/131438658/6790862.pdf
- https://cdn.shopify.com/s/files/1/0433/2145/8853/files/25765661937.pdf
- https://cdn.shopify.com/s/files/1/0437/7860/5218/files/led_zeppelin_black_dog_tab.pdf
- https://cdn.shopify.com/s/files/1/0431/0407/5933/files/97952433025.pdf
- https://cdn.shopify.com/s/files/1/0430/9647/3749/files/mega_link_generator.pdf
- https://cdn.shopify.com/s/files/1/0431/8828/9694/files/78768114431.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21244882445.pdf
- https://cdn.shopify.com/s/files/1/0435/5981/3279/files/neguvosi.pdf
- https://cdn.shopify.com/s/files/1/0437/5642/1278/files/bozuxeluvizogalezuwage.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/livoxigugefeguvon.pdf
- https://cdn.shopify.com/s/files/1/0441/4147/8040/files/94382731064.pdf
- https://cdn.shopify.com/s/files/1/0434/7350/2361/files/adlarin_menasi.pdf
- https://cdn.shopify.com/s/files/1/0431/8904/3362/files/student_absenteeism_articles.pdf
- https://cdn.shopify.com/s/files/1/0439/0410/6651/files/linear_pair_postulate_worksheet.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_off00005eb6.bin76d660e3d6b748e79c2004386d8869e97a81d7e4fec77748c9d3fe9826230a3f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EB6 | 4752 bytes |
font_01_sfnt_off00006ecd.bin82a78cadb06a1ff2583781ca301e9e676139763b85341cc0a0307bacccbc4e23 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6ECD | 9772 bytes |
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