MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 PowerShell
The PDF file contains numerous links to external PDF files, indicative of a link farm. One prominent link redirects to a known malicious infrastructure at 'ttraff.com', disguised as a manual search. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, and the presence of a callback lure heuristic indicates a potential social engineering tactic. The primary attack pattern involves tricking the user into clicking a malicious link.
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 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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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) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
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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.com/wb?keyword=bosch%20battery%20charger%20manual In PDF document text
- http://files.karolinabohn.com/uploads/1/3/1/4/131407882/3f2a0f7bee83ee3.pdfIn PDF document text
- http://files.yoonjungseo.com/uploads/1/3/0/9/130969433/wakukudikazo.pdfIn PDF document text
- http://files.e3educate.org/uploads/1/3/2/6/132681409/migigarawe.pdfIn PDF document text
- http://files.buffalovalleypuppies.com/uploads/1/3/1/1/131164021/bc318e.pdfIn PDF document text
- http://files.pineriversdogtraining.org/uploads/1/3/1/0/131070688/jaxubusaxekuvotadi.pdfIn PDF document text
- http://files.mstaconference.net/uploads/1/3/0/7/130776334/2166463.pdfIn PDF document text
- http://files.siccoconstruction.com/uploads/1/3/0/8/130874063/4865806.pdfIn PDF document text
- http://files.framemysore.org/uploads/1/3/1/3/131384789/7349004.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://tekudoguj.files.wordpress.com/2020/06/rolunasuku.pdfIn PDF document text
- https://laderowo.files.wordpress.com/2020/07/wirerilinudu.pdfIn PDF document text
- https://duvisigu.files.wordpress.com/2020/07/37555691553.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5820/8674/files/88778764695.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9660/4825/files/ranoluber.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94393320092.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8220/3801/files/zenuwo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2518/6466/files/pimoverisasefov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8140/9436/files/33037999079.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2665/3090/files/70506914367.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4746/0768/files/wilowumuzajobijik.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_off000063f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63F1 | 5340 bytes |
SHA-256: 64760dca689ec634291f2bfeab3b8109d4e161cbb9b52022d00a2c572ccbfee7 |
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font_01_sfnt_off000075f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75F9 | 12912 bytes |
SHA-256: 92cf5f2080fc6a1d3e3a4e139c1c4b1b35159621c3bafb9e41002c092b5c0b93 |
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