MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=audio+power+amplifier+design+pdf'. This indicates the document's primary purpose is to trick the user into visiting a malicious URL. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the same URL, reinforcing the lure.
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.cc/pify?keyword=audio+power+amplifier+design+pdf In PDF document text
- http://files.gloucesterunitingchurch.org/uploads/1/3/2/6/132681233/jafotu.pdfIn PDF document text
- http://files.capstoneonline.com/uploads/1/3/0/8/130814596/cdb1abea4c8dc6.pdfIn PDF document text
- http://files.gavinwelshfarriery.co.nz/uploads/1/3/2/6/132696174/zubedekika.pdfIn PDF document text
- http://files.stresswiseatwork.co.uk/uploads/1/3/1/6/131607163/faxuvavorano_rasunab_saroxarutenig.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/1/0429/4000/6559/files/89530579525.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3400/8987/files/rexitumitoxigam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4261/9035/files/86640242133.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8987/9445/files/49808152266.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7026/7291/files/stay_hungry_stay_foolish_drive.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5153/2963/files/ducky_macro_2._0.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5911/8229/files/79397349444.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1761/6034/files/metebibusis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7162/6659/files/vikekupewusupejimov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5815/7982/files/84946539994.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8028/6372/files/seborewusededuviwabija.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5690/5885/files/poxaxevipafixekimuvixole.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0558/3266/files/commercial_building_design_project.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_off0001a413.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A413 | 3080 bytes |
SHA-256: 8574919c7c8a9f024103958ce015253c5a24b8e646cdb5f787658918713f2b2b |
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font_01_sfnt_off0001af1b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1AF1B | 5444 bytes |
SHA-256: dcae41f3f94fe42a360e2fa5e1db8e050c844b2edfab1215e3204ed2cefbd610 |
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font_02_sfnt_off0001c19b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C19B | 14328 bytes |
SHA-256: 9f7799c2ce90ac90213ac3cbcead375736b6b64fba5fa4c9959a19972e1ed862 |
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