MALICIOUS
242
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a malicious redirector link pointing to 'ttraff.ru', which is a known malicious domain. It also exhibits characteristics of a link farm, with numerous embedded URLs, many of which point to Shopify. The presence of a 'download button' lure and instructions for a password-protected archive suggest an attempt to trick the user into downloading and opening a malicious file. The primary malicious IOC is the redirector URL.
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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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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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.ru/wb?keyword=mineralogia%20klein%20pdf%20download In PDF document text
- http://files.arlettevandeneycken.com/uploads/1/3/0/8/130874359/0d53d6ffb3.pdfIn PDF document text
- http://womadi.sensorydeliveryroom.com/uploads/1/3/1/4/131453574/5789118.pdfIn PDF document text
- http://files.quintinhamojud.com/uploads/1/3/1/4/131452959/nuwijeni_wakefuwonisireb_xusumapudofovi.pdfIn PDF document text
- http://files.charmingandchair-ished.com/uploads/1/3/1/8/131856703/8811040.pdfIn PDF document text
- http://files.ours-winnipeg.com/uploads/1/3/0/7/130776769/lemubuzexozurira.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4135/7973/files/70449566367.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81108552740.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/test_1879eb6a-339e-4d45-a409-571cd94a4742.pdf?v=1594212285In PDF document text
- https://cdn.shopify.com/s/files/1/0431/1423/4016/files/99893546316.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9073/0398/files/75193534694.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8462/7624/files/lower_back_pain_exercises_nhs.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1740/2530/files/pimopokodobefarajalafo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0452/3776/4256/files/weighted_average_method_of_inventory_valuation_example.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8966/4926/files/matikofewajegikituvo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4970/5881/files/56083539711.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9284/4448/files/minecraft_forge_1_6_2.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_off00018b7e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18B7E | 5192 bytes |
SHA-256: 7192be259595741b8916f7a151a13b1fa6488a09506f364c05702dce291fea86 |
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font_01_sfnt_off00019d4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19D4B | 16876 bytes |
SHA-256: 9289de3f9ca003005f4c5c4d6d6b3d3c6ce7a8bc6d5c91396441318ab24d0a6f |
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