PDF malware analysis — malicious · 1e707a8004119957

MALICIOUS

PDF

46.5 KB Created: 2020-08-08 20:25:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 04e877a3e0b6f51f924a053724aa4b20 SHA-1: a821dcb0485f23fa5081cf3c85ea056a3d7d8e88 SHA-256: 1e707a8004119957bf13592b303e1a6f50f3ee2719c1fd0b525c1afcd96b4793

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass external link farm, with a critical heuristic firing for a link to known malicious redirector infrastructure at https://ttraff.cc/pify?keyword=agenda+meeting+template+pdf. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect the user to malicious content. The ML classifier strongly supports the malicious verdict.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=agenda+meeting+template+pdf
- http://files.premise52.com/uploads/1/3/2/6/132696113/wusejare-mamodonedexa-kaxamagugi.pdf
- http://files.marianimediation.com/uploads/1/3/1/4/131406437/b7fec3857.pdf
- http://files.featuredlistingswnc.com/uploads/1/3/0/7/130775950/sometopuda-mobuzimumunola.pdf
- http://files.breelove.ca/uploads/1/3/2/7/132740693/wikixe.pdf
- http://files.angelasongart.com/uploads/1/3/2/6/132683246/3377852.pdf
- https://cdn.shopify.com/s/files/1/0430/1117/8649/files/45973218656.pdf
- https://cdn.shopify.com/s/files/1/0433/5570/1398/files/caligula_de_camus.pdf
- https://cdn.shopify.com/s/files/1/0430/2631/7473/files/91244390920.pdf
- https://cdn.shopify.com/s/files/1/0438/8611/7019/files/lenilula.pdf
- https://cdn.shopify.com/s/files/1/0438/1048/8477/files/software_architecture_design_book.pdf
- https://cdn.shopify.com/s/files/1/0434/5564/3813/files/rupukunopadumuvatuxoz.pdf
- https://cdn.shopify.com/s/files/1/0436/7430/4662/files/gonajiporilevafepododixu.pdf
- https://cdn.shopify.com/s/files/1/0428/3269/1363/files/21345956096.pdf
- https://cdn.shopify.com/s/files/1/0432/7745/1428/files/3006125149.pdf
- https://cdn.shopify.com/s/files/1/0435/8701/0728/files/illustrated_guide_to_the_national_electrical_code.pdf
- https://cdn.shopify.com/s/files/1/0430/0737/7561/files/49410483319.pdf
- https://cdn.shopify.com/s/files/1/0432/3596/7143/files/96760851125.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_off0000790d.bin` `2f6cdc928ca340845ae542e5388dc62cbad5258f01c1c3be22550af2c69350ff`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x790D	5076 bytes
`font_01_sfnt_off00008a4a.bin` `2d26a332cafe410b981b7bc1991d7a2a4c1d8452e72cce26845fcd839146c1b1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A4A	10296 bytes

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