MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF document contains embedded links that redirect to a malicious URL, identified by the 'ttraff.com' domain. The document body, though partially corrupted, suggests a lure related to 'chemistry equation symbols pdf'. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy to improve search engine ranking and distribute malicious content. The ML classifier strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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+equation+symbols+pdf
- http://files.alexvann.net/uploads/1/3/2/6/132695418/121654.pdf
- http://bexofodi.meridianstats.com/uploads/1/3/1/6/131607062/julesubodatixunapad.pdf
- http://files.champagneandlinen.com/uploads/1/3/1/1/131163851/a437eb1a.pdf
- http://files.anyball.info/uploads/1/3/2/7/132741241/woxakej.pdf
- https://cdn.shopify.com/s/files/1/0433/5117/9416/files/68632815621.pdf
- https://cdn.shopify.com/s/files/1/0440/2036/7510/files/77739011283.pdf
- https://cdn.shopify.com/s/files/1/0443/9500/4070/files/redact_acrobat_pro_2020.pdf
- https://cdn.shopify.com/s/files/1/0432/3534/4539/files/24026298782.pdf
- https://cdn.shopify.com/s/files/1/0433/1631/4277/files/17753333112.pdf
- https://cdn.shopify.com/s/files/1/0430/4742/0057/files/86232173678.pdf
- https://cdn.shopify.com/s/files/1/0433/4462/5822/files/89453636073.pdf
- https://cdn.shopify.com/s/files/1/0430/8441/5143/files/48421852099.pdf
- https://cdn.shopify.com/s/files/1/0433/8624/1189/files/koges.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000067ca.binfdd57465e5f091b3d392fd20a176f513c6ff4bd20fbd0232839d2fdf0e46e331 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67CA | 5552 bytes |
font_01_sfnt_off00007a7b.binc130f23d79df2bb9b467bea26b7ea8ef0825e1f7dd0efa27219a37bf23213e1f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A7B | 10396 bytes |
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