MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, many of which point to a link farm designed to obscure the ultimate destination. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is used to deliver the payload. The document body, though heavily obfuscated, contains the target URL and other URLs that appear to be part of a link farm. No scripts were extracted, but the presence of the redirector and link farm strongly suggests a phishing or malware delivery attempt.
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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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/pify?keyword=chemistry+handwritten+notes+for+ssc+cgl+pdf+in+english In PDF document text
- http://files.sharingeducationlearningforlife.org/uploads/1/3/0/9/130969656/9a3dbef.pdfIn PDF document text
- http://files.patotoole.co.uk/uploads/1/3/2/8/132816195/rewapu.pdfIn PDF document text
- http://files.kemslashes.com/uploads/1/3/2/6/132682899/kuzadifa-tawususipirojor.pdfIn PDF document text
- http://files.ernst-arch.com/uploads/1/3/1/3/131398022/vukeri.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9537/5524/files/o_que__cultura_popular_editora_brasiliense.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5959/9765/files/ruvilibeluzopovefov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/8967/7736/files/anlage_sv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7789/4293/files/sabadiz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4479/8613/files/80912466775.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7372/3800/files/linowilarodubonatawifime.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0446/9496/2332/files/25_branches_of_biology.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3756/4838/files/jiwanageguvukoto.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7539/3944/files/modern_business_process_automation.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dosoxuwananeworatimuk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6239/4021/files/satefuzejejufum.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_off00006ca8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6CA8 | 5668 bytes |
SHA-256: f49e713378f7fdd6fe390a374ea5b5f9ad16adcbdb556438d2dd2d756b7f869e |
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font_01_sfnt_off00007fe2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7FE2 | 14728 bytes |
SHA-256: 6a817b8c31a5a30322ba93ff069722033535b7aedc25c0028c665dd46697a796 |
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font_02_sfnt_off0000ada1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xADA1 | 4120 bytes |
SHA-256: 5dacd336e1a9c0e19b9b9beefe62f6a87dcdff0d9619d193b3a04017abaec374 |
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