MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL, https://ttraff.com/pify?keyword=kuensel+calendar+2020+pdf+download, is used to redirect users to potentially harmful content. The document body, though heavily obfuscated, contains references to this malicious URL and a benign-looking PDF, suggesting a lure to download a file that ultimately leads to malicious infrastructure. The presence of many Shopify links suggests an attempt to blend in with legitimate content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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=kuensel+calendar+2020+pdf+download In PDF document text
- http://files.maschmeyer.com/uploads/1/3/1/3/131378838/putedogovo-piretelaso-bonuwezi.pdfIn PDF document text
- http://files.bikeforlifesd.org/uploads/1/3/2/6/132682802/peguko-safewarosamesu-kafivilozobo.pdfIn PDF document text
- http://files.dukeunccls.com/uploads/1/3/1/4/131483371/6017493.pdfIn PDF document text
- http://piside.monaghantidytowns.com/uploads/1/3/0/7/130738531/rawokurev.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.thdl.org/http://www.thdl.org/TibetanIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/9799/4904/files/70008834781.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0776/1819/files/2323625901.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7318/4678/files/36473860227.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5413/6473/files/how_to_anonymize_adobes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5611/0487/files/86286446900.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92702877098.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0444/4350/0710/files/31065591976.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2340/8032/files/81231932075.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5934/7618/files/vikobujuxexedetip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7111/1330/files/free_form_filler_software.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4619/9711/files/46951687578.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6552/3862/files/37304835182.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
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlTibetanIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005bf4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5BF4 | 5484 bytes |
SHA-256: bc78286fbb1432c4ee71cb1132b0d7fad659802321d1fffbabcca85935da3b73 |
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font_01_sfnt_off00006ecb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6ECB | 11116 bytes |
SHA-256: 05f002fbe2dafaf9ff3a91415ac4de6fc5120697e93b7d77852534f9b64c6f9d |
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font_02_sfnt_off000086e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x86E2 | 2448 bytes |
SHA-256: c14a7261fc73024d8eb5a71744047bba87e284d88f493d6fd64b95d3292805af |
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font_03_sfnt_off0000918d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x918D | 9880 bytes |
SHA-256: 65ce7be32060f512d926dfe51596a587878b372b456ba5961b7472b095354218 |
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