MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a prominent link to 'cctraff.ru' which is flagged as a malicious redirector, likely serving as a lure for downloading unwanted software or malware. The document body, though heavily obfuscated, contains references to 'Wondershare Filmora effects pack download' and numerous URLs, many hosted on disposable domains, reinforcing the phishing and download lure aspect. The ML classifier strongly indicated maliciousness, and the presence of a malicious redirector URL is a high-confidence indicator of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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 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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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
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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://cctraff.ru/strik?keyword=wondershare+filmora+effects+pack+download In PDF document text
- http://files.easygocentralillinois.com/uploads/1/3/1/4/131437932/xugebokuzi.pdfIn PDF document text
- http://fesakubin.huhaixiao.info/uploads/1/3/2/7/132740352/6309881.pdfIn PDF document text
- http://files.aghortteachers.org/uploads/1/3/0/7/130776720/rebobixixuvud-gadezi-jorepirorijepix.pdfIn PDF document text
- https://site-1037261.mozfiles.com/files/1037261/64529564659.pdfIn PDF document text
- https://site-1039478.mozfiles.com/files/1039478/fizux.pdfIn PDF document text
- https://site-1037911.mozfiles.com/files/1037911/xejemozusaxilekedamix.pdfIn PDF document text
- https://site-1037003.mozfiles.com/files/1037003/ziwodif.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/c3abed15-1bef-475b-be5b-67bf16939356/fidevapabezufokijokoveg.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9479c041-d364-4802-b011-3629805e1092/25303963657.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a3629dba-4662-4747-a7ff-3e39c6bf21e3/zezugupoluzotap.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5ffd7812-78c4-47da-831a-a48fc9961dca/rinodopudefapi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a1a2dab3-4378-41a0-ada0-001198e057a6/nidenitanibonevazune.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0483/3378/3203/files/99943225747.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/7358/3781/files/53334483041.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9875/8567/files/60855967431.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0482/0887/1581/files/nuvevamafixorokod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0485/1829/9810/files/angiline_the_baker.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_off000063ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63AC | 5352 bytes |
SHA-256: a25123c7abb1ac28079a4a02e87d378448e40694b2724015f6d3f38a82ec2ef5 |
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font_01_sfnt_off000075c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75C5 | 10120 bytes |
SHA-256: 6342514d2b7320a1681b7f06dd085b085141808a74b4d55a423b11515dac684c |
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font_02_sfnt_off0000987e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x987E | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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