MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
T1059.003 Windows Command Shell
The PDF contains a visible link to a malicious redirector, ttraff.com, disguised as an educational worksheet. This redirector likely leads to further malicious content or exploits. The presence of a large number of external PDF links, many hosted on cdn.shopify.com, suggests a link farm or SEO poisoning tactic to increase visibility. The heuristic 'SE_LOLBIN_RUN_COMMAND' indicates that the document may also contain instructions for executing commands using Windows scripting tools, further supporting a malicious intent.
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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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=dividing+complex+rational+expressions+worksheet In PDF document text
- http://rugit.smykkemageren.com/uploads/1/3/2/3/132302942/164d59e538.pdfIn macro / runtime command snippet
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tiwimuz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8669/0969/files/71259572980.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8158/1223/files/command_line_curl_post_request.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7689/5398/files/94520970202.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8552/1311/files/sosefubitokadibizagume.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0398/5570/files/5230466227.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2078/7613/files/ritepefigibuvakofuvo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2885/7503/files/13793356435.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8565/2375/files/8410689389.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6285/2761/files/muzuxik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4218/6150/files/fobupeloxotopalele.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
- https://cdn.shopify.com/s/files/1/0428In macro / runtime command snippet
- 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_off00005e28.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E28 | 5772 bytes |
SHA-256: a9f1a55f0744e874b39cf42a16d30308851dfdb5816f96d439d71acdcb28706e |
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font_01_sfnt_off000071bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71BC | 9620 bytes |
SHA-256: ab88686a70d789abbd6fb97d03a93e6e7ae856bc7c29267ecb5fb5cd6b7c0860 |
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