PDF malware analysis — malicious · a40005c02f0fd877

MALICIOUS

PDF

64.7 KB Created: 2020-08-12 18:00:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 92a4ab937858fa5ce98f45e3e5c51dfa SHA-1: ed5203b7d44b0f56bf65c46493d72dda9828476f SHA-256: a40005c02f0fd877e285e55a778fc82b28d912ad89201cba995bc9c79229b0a2

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=caracteristicas+biologicas+del+adulto+mayor+pdf'. Additionally, another critical heuristic indicates the PDF hosts a mass external link farm, suggesting an attempt to manipulate search engine results or distribute content through numerous links. The document body, though partially corrupted, contains the same URL, reinforcing the malicious intent.

Heuristics 3

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.
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=caracteristicas+biologicas+del+adulto+mayor+pdf
- http://files.xiphospress.com/uploads/1/3/1/8/131871658/mewarumotip.pdf
- http://files.12holyapostles.org/uploads/1/3/1/4/131453944/2212051.pdf
- http://sumasujop.harmonyhallonriverside.com/uploads/1/3/1/3/131398020/3245362.pdf
- http://files.arteology.us/uploads/1/3/0/8/130813710/7994731.pdf
- https://cdn.shopify.com/s/files/1/0434/1828/8277/files/96705157303.pdf
- https://cdn.shopify.com/s/files/1/0430/5901/9927/files/luigis_mansion_iso.pdf
- https://cdn.shopify.com/s/files/1/0435/0361/6165/files/visodaguvinagifitevon.pdf
- https://cdn.shopify.com/s/files/1/0431/0378/1015/files/lebazape.pdf
- https://cdn.shopify.com/s/files/1/0432/9956/9832/files/lizetigilafirorogosu.pdf
- https://cdn.shopify.com/s/files/1/0427/4513/5260/files/risukatuwagiranir.pdf
- https://cdn.shopify.com/s/files/1/0430/3775/3501/files/notawureduroze.pdf
- https://cdn.shopify.com/s/files/1/0435/3759/6575/files/semukere.pdf
- https://cdn.shopify.com/s/files/1/0432/2643/1652/files/case_files_emergency_medicine_5th_edition.pdf
- https://cdn.shopify.com/s/files/1/0432/1427/4720/files/human_anatomy_and_physiology_of_nervous_system.pdf
- https://cdn.shopify.com/s/files/1/0433/5498/0505/files/robubijalarowipej.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/25322908130.pdf
- https://cdn.shopify.com/s/files/1/0436/5582/3525/files/28404557219.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_off0000bbb5.bin` `da49a0e7a07d46a189b243b9d3db28c76d08e59d024b8b229beb94f681c33654`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBBB5	5620 bytes
`font_01_sfnt_off0000ceb6.bin` `a0ad9c53dd42018ff130c19561a02a10c69064e2cf6b41241e8f15aa96cf2e06`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCEB6	11276 bytes

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