MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'Bach cello sheet music' and a URL that appears to be a lure for free downloads. This suggests a phishing or scam attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
-
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.
-
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.
-
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.
-
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
-
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.
-
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.cc/pify?keyword=bach+cello+sheet+music In 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/1/0438/1668/1629/files/22640546468.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0452/2472/2589/files/sevip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4977/1427/files/47304659350.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8850/2174/files/11647433133.pdfIn PDF document text
- https://static.usrfiles.com/ugd/02beb7_0dad258eac854c41b1b1cf95f365e6eb.pdfIn PDF document text
- https://static.usrfiles.com/ugd/7c3584_063235024eb940a7b7a8f254c046240d.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5359/6310/files/zuzaxupatomidurepewudedij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9322/1783/files/rosobaxuzuj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3888/4519/files/spanish_mackerel_fishing_report.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0799/0169/files/97376149283.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5639/7474/files/electron_configuration_and_octet_rule_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/3048/4904/files/kaplan_nursing_entrance_exam_study_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5771/6117/files/35101907520.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6656/4507/files/18275764488.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5823/3493/files/public_health_nutrition_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4939/4071/files/58976417649.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006f97.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F97 | 4992 bytes |
SHA-256: 5565e97cf3db63e67a86782b0bcd8343eb810614928818eab690130ceb849c22 |
|||
font_01_sfnt_off0000806c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x806C | 10604 bytes |
SHA-256: e513f0006476d8f4beda8ae8871bcabcb6310231688af7c2443202661325a6ee |
|||
font_02_sfnt_off0000a4f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA4F6 | 16076 bytes |
SHA-256: 20dc835fdb26e5c8b2bf371a74de3f1f2251d0d540cd54084ecb3d27d8cc4587 |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.