Malicious PDF — malware analysis report

Static analysis result for SHA-256 e934152fca7b300a…

MALICIOUS

PDF

40.7 KB Created: 2020-09-07 16:42:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 02c13b7927f82c5c92e2d03ef74e375a SHA-1: b6574a3c5b8777ca62298df5215394300f8c8f5f SHA-256: e934152fca7b300abef8b382c8469840552ce08c9d6c3c2632d2200e3d9c2ac2
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.me/pify?keyword=accelerator+chrome+web+store', which is also listed as a malicious redirector. This suggests the document is designed to redirect users to malicious content, likely for phishing or malware distribution.

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.me/pify?keyword=accelerator+chrome+web+store
    • https://cdn.shopify.com/s/files/1/0431/3976/0285/files/xezevobebiga.pdf
    • https://cdn.shopify.com/s/files/1/0437/2076/9685/files/water_and_wastewater_treatment_book.pdf
    • https://cdn.shopify.com/s/files/1/0434/4751/7341/files/pufojivok.pdf
    • https://cdn.shopify.com/s/files/1/0431/0676/2903/files/biomedical_engineering_final_year_projects.pdf
    • https://static.usrfiles.com/ugd/32777b_e917ef683d8a4fe89f1ca4e5d1ea9629.pdf
    • https://cdn.shopify.com/s/files/1/0431/2537/5130/files/ponotatejoni.pdf
    • https://cdn.shopify.com/s/files/1/0460/8150/7492/files/ikea_catalogue_2020.pdf
    • https://cdn.shopify.com/s/files/1/0434/7160/1817/files/gobiporuxi.pdf
    • https://cdn.shopify.com/s/files/1/0429/8568/5153/files/39646731526.pdf
    • https://cdn.shopify.com/s/files/1/0434/3991/5164/files/68165319990.pdf
    • https://cdn.shopify.com/s/files/1/0431/6404/1373/files/kegipigopoboxusebetoje.pdf
    • https://cdn.shopify.com/s/files/1/0433/5550/4795/files/54347933064.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.

FilenameKindSourceSize
font_00_sfnt_off000061b6.bin
b911aa89e4a690d8d950d7ebe2c3c72ec5680619d1bbd952e0eda86138336708		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61B6 5260 bytes
font_01_sfnt_off0000737b.bin
806705ebed50f54b52f0f0ffb6da8efa8c08e47972708e979e05444d783d49b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x737B 10184 bytes

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