PDF malware analysis — malicious · 12e8049a220c15af

MALICIOUS

PDF

41.3 KB Created: 2020-08-04 08:44:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 413a935dc1cda8b7eb325610990c5634 SHA-1: dc2e1d74062cba1a25463327c4d8888727d8fc70 SHA-256: 12e8049a220c15af5b7f64a2b4bb4f4915d1cfc54a73d6c8c3a1f680dcac00d9

154 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF 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.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small 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.
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The 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.
Embedded URL info EMBEDDED_URL

One 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/pify?keyword=electrical+technician+interview+questions+and+answers+pdf+download
- http://files.printgearinc.com/uploads/1/3/1/4/131406563/1345326.pdf
- http://files.idahotaxidermistsassociation.org/uploads/1/3/1/3/131380848/6286745.pdf
- http://files.mnhaequinemassage.com/uploads/1/3/1/4/131408899/9379330.pdf
- http://files.lacuevabearsgolf.com/uploads/1/3/1/4/131483492/nubujesilow.pdf
- http://files.madcatcreative.ca/uploads/1/3/2/6/132681824/af1cd363bf8f998.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0437/3010/8577/files/lolixupoxijutifulax.pdf
- https://cdn.shopify.com/s/files/1/0431/6617/1293/files/ligifudi.pdf
- https://cdn.shopify.com/s/files/1/0428/2492/5347/files/arborists_certification_study_guide.pdf
- https://cdn.shopify.com/s/files/1/0428/2325/4179/files/35291434669.pdf
- https://cdn.shopify.com/s/files/1/0437/9063/1064/files/85663247709.pdf
- https://cdn.shopify.com/s/files/1/0434/3142/8248/files/receitas_cetogenica.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32829552166.pdf
- https://cdn.shopify.com/s/files/1/0433/4478/9669/files/zefegesovoze.pdf
- https://cdn.shopify.com/s/files/1/0439/0970/9976/files/zifunagegexamadexesozulo.pdf
- https://cdn.shopify.com/s/files/1/0440/4979/3174/files/5738403339.pdf
- https://cdn.shopify.com/s/files/1/0428/3914/6662/files/39388847324.pdf
- https://cdn.shopify.com/s/files/1/0434/7753/2824/files/89112263114.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_off000063f3.bin` `bc8d82f2347cf547f3104c4d2fa2bf1ea46deea7a9fa0ba959eb609b912c5ac5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63F3	5480 bytes
`font_01_sfnt_off000076a3.bin` `7b79b28afe943d724ab1fccb8f3880311a3949fb6968a6e145a94cdefd2791a1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x76A3	9796 bytes

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