MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains the same URL and references to academic content, suggesting a lure to drive traffic to malicious infrastructure. The heuristic PDF_SEO_LINK_FARM indicates a mass link farm, further supporting the malicious redirection attempt. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
-
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.
-
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/wb?keyword=first%20order%20low%20pass%20butterworth%20filter%20using%20op-amp%20pdf In PDF document text
- http://files.arabicwithnadia.com/uploads/1/3/1/4/131407549/5607946.pdfIn PDF document text
- http://files.talgolani.com/uploads/1/3/0/7/130776498/32ad234bbaadc.pdfIn PDF document text
- http://files.carlwoodsbutchers.co.uk/uploads/1/3/1/0/131071129/a40f38f9.pdfIn PDF document text
- http://zejopok.huntmyideas.com/uploads/1/3/2/7/132710621/59925bde8868698.pdfIn 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/1/0431/3815/4650/files/66739503755.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5540/7511/files/kibulinezigemomibupoja.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4071/8493/files/jawusisanetiluvidu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7015/3113/files/37650723678.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1491/3191/files/xulofuvurufitej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7004/3813/files/88515108286.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/6495/4775/files/ds_cia_games.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1816/5146/files/1733230667.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2235/8427/files/45653543334.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9715790575.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3337/7440/files/19913196195.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0446/8134/files/54212110852.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2950/3908/files/68049019131.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_off0000820f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x820F | 5672 bytes |
SHA-256: dda40e53e0f1551bfbfd4d208da85d57b00bb8017187e0d0f17ffdf3fc05c092 |
|||
font_01_sfnt_off00009544.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9544 | 14604 bytes |
SHA-256: 011ee3acb06e6c6f20b1b316a15779180dca90fdd2e371a87ccb5ddb4f0de941 |
|||
font_02_sfnt_off0000c4b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC4B2 | 16148 bytes |
SHA-256: a9f7946c6fb1d9a56c6cb1188e7327a1cde7cd9d6d2f72310ea27776ea41e62e |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.