MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to malicious infrastructure, specifically identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body, though heavily obfuscated, contains text related to 'Moca assessment scoring pdf' and a URL that appears to be part of a link farm designed to manipulate search engine results. The ML classifier also strongly indicated maliciousness.
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.ru/wb?keyword=moca%20assessment%20scoring%20pdf
- http://files.communityofcrapaud.com/uploads/1/3/0/9/130969354/d24da19af.pdf
- http://files.mftwrites.com/uploads/1/3/2/6/132695995/fd3d998e275e26c.pdf
- http://files.marthaproject.com/uploads/1/3/0/7/130776864/4405407.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/9705/4631/files/94526414343.pdf
- https://cdn.shopify.com/s/files/1/0427/9923/5228/files/20421848201.pdf
- https://cdn.shopify.com/s/files/1/0432/6011/7160/files/lorde_pure_heroine_zip.pdf
- https://cdn.shopify.com/s/files/1/0431/8114/6280/files/lekotaxizivifomomejexov.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tanedikefiresemur.pdf
- https://cdn.shopify.com/s/files/1/0432/8721/6293/files/36934220756.pdf
- https://cdn.shopify.com/s/files/1/0439/4146/2174/files/vlookup_function_in_excel.pdf
- https://cdn.shopify.com/s/files/1/0437/5298/0641/files/12823881969.pdf
- https://cdn.shopify.com/s/files/1/0438/4836/8288/files/26278719841.pdf
- https://cdn.shopify.com/s/files/1/0438/9348/9832/files/medufawikedoluvojuka.pdf
- https://cdn.shopify.com/s/files/1/0434/7723/7917/files/dudixosef.pdf
- https://cdn.shopify.com/s/files/1/0437/2961/7057/files/86270135249.pdf
- https://cdn.shopify.com/s/files/1/0429/2778/4095/files/jipututogaxobelodixegex.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_off00006f86.bin47b6ae93cc2b97c215d81f6acb1208e79fd04cead54c4f0ca2379177362727ac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F86 | 5448 bytes |
font_01_sfnt_off00008206.bin3bbe094dfce84ad3cdd7a50317f56e3c42adf921a15931d6e3da38603d6cec46 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8206 | 13492 bytes |
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