MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment
T1059.001 Command and Scripting Interpreter: PowerShell
T1204.002 Malicious Link
The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to an 'aptitude test' and includes the malicious URL. This suggests a phishing or social engineering attempt to direct the user to malicious infrastructure.
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=%25E0%25B8%2582%25E0%25B9%2589%25E0%25B8%25AD%25E0%25B8%25AA%25E0%25B8%25AD%25E0%25B8%259A+aptitude+test+%25E0%25B8%259E%25E0%25B8%25A3%25E0%25B9%2589%25E0%25B8%25AD%25E0%25B8%25A1+%25E0%25B9%2580%25E0%25B8%2589%25E0%25B8%25A5%25E0%25B8%25A2+pdf In PDF document text
- http://files.bristolgeogsoc.com/uploads/1/3/1/4/131438583/vugawitunasofo_difijomevunogal_bevotu.pdfIn PDF document text
- http://zewukija.armenianrugssociety.org/uploads/1/3/1/1/131163635/vuparopazif_furedapen_betuxewozufu.pdfIn PDF document text
- http://files.shop-perfectly-impressive-store.com/uploads/1/3/1/0/131070291/f0df8c6474858d2.pdfIn PDF document text
- http://www.opentle.orgIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5780/6486/files/sujekutaso.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9628/6111/files/majofogunowononetemulibos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9547/3822/files/55622027776.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2032/8865/files/jokutetatapewaduteboxa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4065/2960/files/78240725717.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2829/7381/files/2003_honda_accord_service_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3314/8062/files/gungeon_directional_pad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6193/6282/files/ronawukos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3341/9160/files/muzok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5103/1447/files/air_pollution_solutions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2491/6388/files/mabuwikag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4162/8072/files/keraroduf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0476/4068/files/gurafidukepugado.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6833/2959/files/67232421267.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://www.gnu.org/licenses/gpl.htmlIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_005_off00007f26.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x7F26 | 18088 bytes |
SHA-256: 989d9cc0f0b543b1e704b8d5e60607e1cbb750199e61510ac5beda56c2d9a2d2 |
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font_00_sfnt_off00005933.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5933 | 4812 bytes |
SHA-256: 6389ea82bd7f86d6aefeb11b7706e5aa1a4bca6ccf138938e9386849287de73f |
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font_01_sfnt_off000069a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x69A0 | 8208 bytes |
SHA-256: ce8168fe634d2e965ebdda66ea06e2332f833d0b3822e1b2bbb8e8cfe2f89da4 |
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font_03_sfnt_off0000af9f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF9F | 8852 bytes |
SHA-256: b4cd2cd084afa030e246cdb6dcccc5aaa09605d7aaed0cff31249697c271f513 |
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