MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'expanding and combining sentences worksheets' and the malicious URL, suggesting a lure to disguise the malicious intent. The presence of many external PDF links also indicates a link farm, a common tactic for SEO poisoning or distributing malicious content.
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=expanding+and+combining+sentences+worksheets
- http://kowik.chelseaborgman.com/uploads/1/3/0/8/130814411/ddcdbaa7a122271.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0438/2785/5522/files/winakekexofu.pdf
- https://cdn.shopify.com/s/files/1/0431/7505/1413/files/wusunukadif.pdf
- https://cdn.shopify.com/s/files/1/0432/9085/3531/files/29333249595.pdf
- https://cdn.shopify.com/s/files/1/0430/0469/0581/files/ever_never_already_yet_exercises.pdf
- https://cdn.shopify.com/s/files/1/0432/2174/5822/files/66252961063.pdf
- https://cdn.shopify.com/s/files/1/0434/9588/2918/files/wulanaxavojusimu.pdf
- https://cdn.shopify.com/s/files/1/0430/3775/3493/files/podanuregavukixipuz.pdf
- https://cdn.shopify.com/s/files/1/0430/4653/5322/files/sibasudatojazisodopo.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tiwimuz.pdf
- https://cdn.shopify.com/s/files/1/0434/5764/2648/files/vejiga_neurogenica_manejo.pdf
- https://cdn.shopify.com/s/files/1/0430/0223/2983/files/pekapimeg.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000686d.bind4143ad91dbdb1e9bdc7b21978892dec0361314c8948a105ed8768c838c04f03 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x686D | 5776 bytes |
font_01_sfnt_off00007bff.binb790c487ebe4df8a9ed400912d981984cbccfb51c8ae48538672ef182080d996 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7BFF | 10192 bytes |
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