MALICIOUS
282
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a link to a known malicious redirector, ttraff.club, which is likely part of a phishing campaign. The document also exhibits characteristics of a credential harvesting lure, specifically mentioning password protection and MFA prompts. The presence of a download button further supports the phishing pretext. The embedded URLs and the document's structure suggest a social engineering attack aimed at tricking users into revealing sensitive information.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 8
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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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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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MFA / one-time-code harvesting lure high SE_MFA_LUREDocument asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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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://ttraff.club/wix?keyword=ukulele+songbook+pdf+2018 In 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://static.usrfiles.com/ugd/ca32a8_7681c9dbd98b4fd7804835dbdae8313e.pdfIn PDF document text
- https://static.usrfiles.com/ugd/4cf28d_7b6cbc918af04cf8bbb47e4661e15cc8.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_3bfb702965b1477b80a3483ce8996ab9.pdfIn PDF document text
- https://static.usrfiles.com/ugd/f459ea_dd49f9e818e542ddb3b60d9b8d39e06a.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0019/1400/files/fusionner_plusieurs_document.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7666/2949/files/6542724990.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8531/5744/files/41091129343.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6337/7048/files/xakuwowotaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3391/0681/files/ilpa_standard_fee_template.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9672/7962/files/35451484734.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_off00006ae2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AE2 | 5372 bytes |
SHA-256: ef17926e71c450146cd34c47f5ac059fbf623cac897baae923a8771e81d859ea |
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font_01_sfnt_off00007d3b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D3B | 10372 bytes |
SHA-256: c43f867395011142706b4d205e7041e164d601d70abf1e2e6cb7f816bd3d3fc8 |
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font_02_sfnt_off0000a0b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA0B8 | 4324 bytes |
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230 |
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