MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=letter+format+for+breaking+fixed+deposit'. This URL, combined with the 'SE_INVOICE_LURE' heuristic, suggests a phishing attempt or a lure to a malicious site. The document body, though partially corrupted, contains text related to breaking fixed deposits, reinforcing the lure. The PDF also exhibits a link farm behavior, with numerous links pointing to external PDFs, many hosted on Shopify, likely for SEO manipulation or to obscure the malicious redirector.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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=letter+format+for+breaking+fixed+deposit In PDF document text
- http://files.artsanimalsandawakenings.com/uploads/1/3/1/3/131398541/4102317.pdfIn PDF document text
- http://files.thedancenetworksb.com/uploads/1/3/2/7/132740281/6126308.pdfIn PDF document text
- http://files.wjbands.org/uploads/1/3/1/6/131606487/c9dca90.pdfIn PDF document text
- http://files.chicoanimalshelter.org/uploads/1/3/1/8/131856949/rowelo-sigozugorovon.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0435/9208/9759/files/bridges_3rd_grade_math.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0120/0288/files/package_air_conditioning_system.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0728/5147/files/gmat_probability_questions_and_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/monazata.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6542/6598/files/50116163337.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0453/8272/9896/files/bromothymol_blue_sds_sheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5522/5763/files/baseband_5216_ericsson.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/0489/8978/files/ansys_workbench_commands.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6486/0580/files/mevemagopeke.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3789/1477/files/craftsman_8hp_chipper_shredder_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2875/0241/files/xurikugitun.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006a1b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A1B | 5328 bytes |
SHA-256: 811e4c8e5b4749cdfe108706a756a9db29e0746893aa667ad377d9d8fb3f701b |
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font_01_sfnt_off00007c1d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C1D | 9924 bytes |
SHA-256: 282ef497dfdf6a1d99f9e8552b468ada3aae598b988ae93a7a918f32adcef4df |
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font_02_sfnt_off00009e22.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9E22 | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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