PDF malware analysis — malicious · f321206dac15b179

MALICIOUS

PDF

54.3 KB Created: 2020-08-03 12:58:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 7355729838a9b88c5798c016efe66483 SHA-1: 36e19461e1e5b02a527b252caa68eb84a93115ad SHA-256: f321206dac15b179fa9f719086cf14429e4b93857bb034c9dfeea438ca8c1595

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass of external links, including a critical link to a known malicious redirector at `https://ttraff.com/pify?keyword=einstein+summation+convention+pdf`. The document body, though heavily obfuscated, contains this URL and numerous other links hosted on Shopify, suggesting a link farm or redirection scheme. The primary intent appears to be directing users to malicious infrastructure.

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=einstein+summation+convention+pdf
- http://files.modernwellnesscounseling.com/uploads/1/3/1/4/131438071/pinobosikojimagan.pdf
- http://files.stephanieryckman.com/uploads/1/3/1/3/131381363/nibiteken.pdf
- http://files.daydream-art.com/uploads/1/3/1/3/131381919/subukilifetajimibe.pdf
- https://cdn.shopify.com/s/files/1/0431/1659/3312/files/jotawetitixa.pdf
- https://cdn.shopify.com/s/files/1/0438/3673/5645/files/68607338042.pdf
- https://cdn.shopify.com/s/files/1/0432/7328/9888/files/xuvulozoromowapafutus.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zumimulapowekulusevenire.pdf
- https://cdn.shopify.com/s/files/1/0438/6127/8870/files/31365556568.pdf
- https://cdn.shopify.com/s/files/1/0431/7921/2959/files/dezosebobugi.pdf
- https://cdn.shopify.com/s/files/1/0430/8746/2551/files/85619344636.pdf
- https://cdn.shopify.com/s/files/1/0431/5106/5243/files/44078430996.pdf
- https://cdn.shopify.com/s/files/1/0432/5693/8664/files/lodib.pdf
- https://cdn.shopify.com/s/files/1/0435/3320/5655/files/66477926778.pdf
- https://cdn.shopify.com/s/files/1/0431/2439/2087/files/88101905250.pdf
- https://cdn.shopify.com/s/files/1/0427/7311/9143/files/fawazodipuzekivozora.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006539.bin` `6113d7367e7e2e874e721829a57d795fab152510248b8f74d8d67574d5f5b70d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6539	5072 bytes
`font_01_sfnt_off0000766a.bin` `4f69d7708115f1e2bf2c2335937fa08c6fb83cf592a76d69697c0e6f392eb9d4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x766A	15688 bytes
`font_02_sfnt_off0000a744.bin` `c56eadffec578cc8e6090184e238c9b6b38aefbd1920fb8acda36855ab9346ac`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA744	16500 bytes
`font_03_sfnt_off0000bd9f.bin` `9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBD9F	4324 bytes

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