PDF malware analysis — malicious · ec1b2363f23f5432

MALICIOUS

PDF

48.7 KB Created: 2020-08-20 23:47:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a8fad1cd0f8961d2acebf299a1998e38 SHA-1: dcabe034bb38d2c9e2187e0ecc80904fe70e6492 SHA-256: ec1b2363f23f54323c784d7adf8a29b687365c1aefd55dc63190d9ce4b1d0c1f

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a guide for 'Animal Crossing Amiibo Festival'. This indicates a phishing or scam attempt. The PDF also hosts a large number of external links, many pointing to Shopify, likely as part of an SEO link farm to improve search engine ranking for malicious content. No scripts were extracted from this sample.

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.com/pify?keyword=animal+crossing+amiibo+festival+guide
- http://files.truloft.net/uploads/1/3/0/7/130775231/zetawenabojevakalu.pdf
- http://gusufit.valleycatsbengals.com/uploads/1/3/0/7/130776485/7055934.pdf
- http://files.themindfulmamablog.org/uploads/1/3/1/6/131606128/d89dd77f558f9f1.pdf
- https://cdn.shopify.com/s/files/1/0430/7176/6690/files/34235868299.pdf
- https://cdn.shopify.com/s/files/1/0450/5387/0232/files/luneruzigimotorabekeko.pdf
- https://cdn.shopify.com/s/files/1/0431/8278/4673/files/79355871246.pdf
- https://cdn.shopify.com/s/files/1/0429/9702/2871/files/laxajem.pdf
- https://cdn.shopify.com/s/files/1/0438/1625/5645/files/html_href_file.pdf
- https://cdn.shopify.com/s/files/1/0431/9330/3199/files/larson_precalculus_8th_edition.pdf
- https://cdn.shopify.com/s/files/1/0434/8264/4642/files/zapuga.pdf
- https://cdn.shopify.com/s/files/1/0430/0010/3073/files/agradecimiento_en_ingles_formal.pdf
- https://cdn.shopify.com/s/files/1/0440/7921/8840/files/gimasubazuxivojunek.pdf
- https://cdn.shopify.com/s/files/1/0435/3510/6203/files/the_art_of_war_quotes.pdf
- https://cdn.shopify.com/s/files/1/0437/9482/5376/files/tokaz.pdf
- https://cdn.shopify.com/s/files/1/0431/8524/2261/files/wajakazolik.pdf
- https://cdn.shopify.com/s/files/1/0434/3375/4780/files/flight_of_the_bumblebee_violin_piano.pdf
- https://cdn.shopify.com/s/files/1/0450/1677/6862/files/assistant_project_manager_interview_questions_and_answers.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_off00007f3e.bin` `353311874357d854200e6b2d778a181d404ae874b4451df6f3d4b981cb3c5659`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7F3E	5528 bytes
`font_01_sfnt_off000091e6.bin` `754e8a733f2c96995179b0a18328775c786532e26798bb5ba56eaff3be11c7ba`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x91E6	10404 bytes

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