MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a heuristic firing for a malicious redirector link, which is also present in the document body. The document body itself is heavily obfuscated but contains the URL that leads to a purported free download of Balsamiq mockups. This suggests a social engineering lure to drive traffic 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.link/wix?keyword=balsamiq+mockups+free++mac In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://scripts.sil.orgThisIn PDF document text
- https://static.usrfiles.com/ugd/7598fa_fa26555215e448b08c68b59756b06c15.pdfIn PDF document text
- https://static.usrfiles.com/ugd/ee9d3f_de49b29ed8e54aefbdc2d80cb0b7c1e3.pdfIn PDF document text
- https://static.usrfiles.com/ugd/4dd980_f4fdc4dc8ca649a3af891f99d927be2d.pdfIn PDF document text
- https://static.usrfiles.com/ugd/f84671_e1137c66fcd8421a95ef8712d497beb0.pdfIn PDF document text
- https://static.usrfiles.com/ugd/f3ecbe_97bd36b5fe9e46f4afdbe539a368d7b0.pdfIn PDF document text
- https://static.usrfiles.com/ugd/374ce0_23da2cd7b5d940299e7eeed5ab65994e.pdfIn PDF document text
- https://static.usrfiles.com/ugd/24deb6_414fd0a7209340a4a0d4e0eb82ee062f.pdfIn PDF document text
- https://static.usrfiles.com/ugd/90423f_6b4956e2ad894e629054d381108c5b4b.pdfIn PDF document text
- https://static.usrfiles.com/ugd/99a8f2_cd903cf0af8e43569187c1e3264bc9d9.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_33e1cc63d4504eafa87113d5abcd29bb.pdfIn PDF document text
- https://static.usrfiles.com/ugd/c068f8_b5a9cbd2896749deb299591e99b2a1b4.pdfIn PDF document text
- https://static.usrfiles.com/ugd/108936_25544667004042e3a0ffb4a73282aef8.pdfIn PDF document text
- https://static.usrfiles.com/ugd/5ea691_49bd724aa1f5410a803eccbaa36e072a.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_0cf667b027d048ed83fedcfa84e3f7d2.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://scripts.sil.org/In PDF document text
- http://scripts.sil.org/OFLAbyssinicaIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 6
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000682b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x682B | 5400 bytes |
SHA-256: 2c6fbc3d6a3492d8cbf1fd2cde30c55241d113e9469e1ddb97f9c9b9121994bd |
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font_01_sfnt_off00007a7f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A7F | 20572 bytes |
SHA-256: 2752d4bc50c456c89aa90edc95fbff43eb198f88295b3159a8a70909ebec7f11 |
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font_02_sfnt_off00009942.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9942 | 2048 bytes |
SHA-256: 7d1d8f4167c36277c8fe71225fbdc31aaaca98204796b18c2f8b3e083a802a80 |
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font_03_sfnt_off0000a219.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA219 | 2456 bytes |
SHA-256: 572d496eeba5197a8ddb6d623cc3ea776617e6469b055e098ee5f7555b87e83e |
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font_04_sfnt_off0000acb1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xACB1 | 10524 bytes |
SHA-256: b059b786013e41e695c1c9b9da3e8bd6ac8befce3b32f118284b492c84cb3638 |
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font_05_sfnt_off0000d0b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0B1 | 16144 bytes |
SHA-256: dd9a388fcb144a6ba51f93f71b1b5f80273f5f386ed315a2c4249d443452b30b |
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