MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external links, many pointing to Shopify-hosted PDF files, indicating a link farm. One of the embedded links, 'https://ttraff.cc/wb?keyword=organic%20chemistry%20alkanes%20pdf', is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated and appears to contain the malicious redirector URL.
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.cc/wb?keyword=organic%20chemistry%20alkanes%20pdf
- http://files.hannaryynanen.com/uploads/1/3/1/0/131070938/wezolawef.pdf
- http://gunititu.hanshi.com/uploads/1/3/0/7/130776031/9299703.pdf
- http://tamoguro.brindafinearts.com/uploads/1/3/1/6/131606490/01d82d1ae6020.pdf
- http://vugagunaw.rydersquash.com/uploads/1/3/1/6/131636612/8656619.pdf
- http://files.bloorstreetsound.com/uploads/1/3/1/4/131438137/5628264.pdf
- https://cdn.shopify.com/s/files/1/0429/1395/6006/files/60026954112.pdf
- https://cdn.shopify.com/s/files/1/0440/9799/4904/files/intranet_et_extranet.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/22271122494.pdf
- https://cdn.shopify.com/s/files/1/0431/0473/1300/files/busixokutijebifobuvef.pdf
- https://cdn.shopify.com/s/files/1/0437/8230/7989/files/borufati.pdf
- https://cdn.shopify.com/s/files/1/0437/4301/9159/files/bending_moment_formulas.pdf
- https://cdn.shopify.com/s/files/1/0435/5643/8165/files/20930484640.pdf
- https://cdn.shopify.com/s/files/1/0428/3593/5388/files/setting_up_dash_button.pdf
- https://cdn.shopify.com/s/files/1/0431/5725/8395/files/87970379424.pdf
- https://cdn.shopify.com/s/files/1/0430/6750/6837/files/53167960365.pdf
- https://cdn.shopify.com/s/files/1/0429/5557/1356/files/bikomovojaboz.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_off0000a14f.binb4a75e790bf3c62028328b828d6173bdc44f8d546bd9949891b1c2283da2ac46 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA14F | 5760 bytes |
font_01_sfnt_off0000b4c6.bin36a9033be01ae44728cba921d0980bdba2b08c41e3899a8f6dbccb4ed9bc6da3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4C6 | 10432 bytes |
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