MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ggtraff.ru/strik?keyword=anlage+av+2015+formular+pdf', which is flagged as malicious. Additionally, the PDF is identified as part of a link farm, suggesting a coordinated effort to distribute malicious content. The ML classifier strongly supports the malicious verdict.
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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://ggtraff.ru/strik?keyword=anlage+av+2015+formular+pdf In PDF document text
- http://files.animasfire.com/uploads/1/3/1/4/131454696/silame_kopigofitad_roluxi.pdfIn PDF document text
- http://ravif.zhuyuejia.com/uploads/1/3/2/7/132712615/nuvozanotow.pdfIn PDF document text
- http://files.treeoflifetroupe.org/uploads/1/3/1/6/131637723/donirimiwiti.pdfIn PDF document text
- http://gepiwugif.minjin.co/uploads/1/3/2/6/132682235/riforol_xadufuxilotez_sozevuwigow_xeriwanazexij.pdfIn PDF document text
- http://files.nowwhat-services.com/uploads/1/3/0/8/130873996/9911424.pdfIn PDF document text
- http://files.mrspeabody.com/uploads/1/3/0/8/130815017/853c9765.pdfIn PDF document text
- http://govuduve.yoursaltsource.com/uploads/1/3/1/4/131483112/2265140.pdfIn PDF document text
- http://wafogo.custercadet.com/uploads/1/3/0/8/130874426/c556d2bc7d14e.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/b7f1cfae-548b-4ca8-bdb9-ea09c1948d49/84812017444.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7110802f-2a97-47b1-8dfe-61fe3c438195/kokuxeneter.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/aa83a6d8-a934-42f7-beb8-7b5b37af04c8/12161823328.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ae67afb5-e318-42c4-a5d7-e72fe678f571/41237781473.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f0d53a29-c28e-431b-b8cb-20c3ebe35611/gavezorolexaxemegovizo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/70bea435-1e1a-4375-a8c8-5f5fe67d75c7/buwasosawowefex.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b7cdefae-233c-4fd2-9075-3f774d6f3229/vigugonapuzu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/06ef5700-5ec7-47d2-b71d-554bc68cacaa/jisigonisefekal.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4243296e-2c99-4bfc-b5d8-3a7d3b049e9f/23217982519.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_off00006e93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E93 | 5680 bytes |
SHA-256: 75f9d6fcd84f11360fd1ede35fbfac2a16d2dbfb668a1a48e5b62b9b6f30e6d1 |
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font_01_sfnt_off000081ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x81EA | 10796 bytes |
SHA-256: 19779e3f4e1fd8ff22d48956338e57106390018e1934fbd847882807c2849d70 |
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font_02_sfnt_off0000a5c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA5C5 | 16204 bytes |
SHA-256: a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd |
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