MALICIOUS
274
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of a link farm designed to attract search engine traffic. One prominent link, 'https://ttraff.ru/pify?keyword=aiff+d+license+log+book+pdf+download', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect users to malicious infrastructure. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates a common tactic to bypass gateway scanning by instructing users to decrypt a payload, further supporting a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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.ru/pify?keyword=aiff+d+license+log+book+pdf+download In PDF document text
- http://files.victorpearlman.com/uploads/1/3/1/6/131637224/9692547.pdfIn PDF document text
- http://files.murraydopking.com/uploads/1/3/2/7/132741334/furoli_sazusorolesi_zefaba_pexulupagejog.pdfIn PDF document text
- http://files.woodpalooza.com/uploads/1/3/0/9/130969459/fijori-rewomibigonog.pdfIn PDF document text
- http://files.firefallseffects.com/uploads/1/3/1/4/131453199/maruroruluki.pdfIn PDF document text
- https://cdn.shopifyIn macro / runtime command snippet
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8113/8343/files/14910298232.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9085/3531/files/94683865637.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5005/5318/files/7273822408.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1561/8203/files/54791427272.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2722/4986/files/45880306034.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2270/2999/files/nevemi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1351/9006/files/powershell_set_environment_variable.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9925/0072/files/lezeponuvab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5174/5442/files/tifekasogujozisugobofa.pdfIn macro / runtime command snippet
- https://cdn.shopify.com/s/files/1/0432/3259/2040/files/10226949679.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00017c4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17C4B | 5512 bytes |
SHA-256: b690680ad82e3669fe8bf4f4c7acff9172746be60475d3cfddd405921656c80b |
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font_01_sfnt_off00018f38.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18F38 | 10552 bytes |
SHA-256: b8c012909186fde0951e1a3f22d46ff431663008ee93e45069290cbbdc255b00 |
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