PDF malware analysis — malicious · 2060607b45bd6085

MALICIOUS

PDF

59.8 KB Created: 2020-10-26 11:51:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15

MD5: a64eb713c6ed8e28f0d9e2f1e0e33815 SHA-1: 1db4c630c9b7dadffa6ce5cad2e09b93b0e5a2e0 SHA-256: 2060607b45bd6085d8dfdf9ab814a9e8934a69cf31ea16b5dc2c0b8879ead53e

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF file contains a link to a known malicious redirector, ttraff.ru, which is likely used to lure victims to malicious content. The presence of numerous external PDF links, including the one to ttraff.ru, suggests a link farm or SEO manipulation strategy to distribute malicious content. The ML classifier also flagged this PDF with high confidence.

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/123?keyword=pediatric+community+acquired+pneumonia+philippine+guideline In PDF document text
- https://cdn-cms.f-static.net/uploads/4377678/normal_5f8bd58c390a5.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/2210425e-89b9-46be-91a6-fe8b8373c938/92774358055.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/aaabb232-3379-4acf-817e-776032d874a9/17908376121.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fab8cefe-e77e-48c7-aae0-2e4c1d71ad5a/35503372363.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c3192aa3-8a9b-410f-b345-3b650bc1e61e/55469249303.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4a33a6db-2913-4ab6-bf6b-7944b270b3ba/daraxakofupeguxanimo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/707fdd9d-c725-4fd6-a0df-033ea4713bbb/xifap.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/772e31b2-2fa0-4541-a2aa-c2395da3a6eb/lurevafubup.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3393f89d-99c4-49c7-aaf9-ad619f520770/panasonic_dmr_ez28_u99_error.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3f2d31ff-5ad5-4c33-84d5-8a9d59fab507/12567492860.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7105/2703/files/robot_unicorn_attack_evolution_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0501/5460/2658/files/alan_watts_the_way_of_zen.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0061/7381/files/social_studies_guide_book_of_class_8.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0478/6618/3846/files/23174959151.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1f049c92-43cd-4246-88e6-b75eb8d9c0e8/natozaxujopifu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ed9a287b-9326-4056-9801-c914ae775833/maroze.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2b0ec707-e9cf-4e18-8f3a-7732293436bb/zoxibekesalogabe.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a1a9dd95-5724-4c7a-8542-8964ccc0301a/27205434950.pdfIn PDF document text
- https://s3.amazonaws.com/xanebavifamopez/vavupelimuturepifusuboji.pdfIn PDF document text
- https://s3.amazonaws.com/tetazino/52006829861.pdfIn PDF document text
- https://s3.amazonaws.com/susopuzupure/lidimarepuduxanuzew.pdfIn PDF document text
- https://s3.amazonaws.com/petikamov/lodatemapul.pdfIn PDF document text
- https://doi.orgIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00009220.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9220	5536 bytes
SHA-256: `b1724730d78085c05590e3f6b3ba8950396bb0e070e4a1de054dbbdfb99ca8c1`
`font_01_sfnt_off0000a4c1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA4C1	11408 bytes
SHA-256: `97bee7a603f00a755a39d686d83d94834720d0e08ab31607e5258410c9e7bc3a`
`font_02_sfnt_off0000cbc3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCBC3	16204 bytes
SHA-256: `a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd`

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