Malicious PDF — malware analysis report

Static analysis result for SHA-256 da93514bbe0fd0d2…

MALICIOUS

PDF

168.0 KB Created: 2020-08-06 00:07:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c3f8302d2d0afabe1902ab9789a8a4e SHA-1: db1b6aa53f033ad69749e7c1beea108467ad68cb SHA-256: da93514bbe0fd0d2cd6a9f7a4eadb201f0d4bb3ecc476ca2b2cb4b7be4fa7eb0
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing indicating a malicious redirector link. The embedded URL points to 'ttraff.ru', which is known for malicious redirection. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. No scripts were extracted from this sample.

Heuristics 2

  • 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.
  • 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=fairy+tales+stories+in+tamil+pdf
    • http://files.socialsproutsohio.com/uploads/1/3/1/3/131398008/597926.pdf
    • http://files.wales-on-wheels.com/uploads/1/3/2/6/132681812/jebekosozira.pdf
    • http://files.tapirday.org/uploads/1/3/0/9/130969188/sudane.pdf
    • https://cdn.shopify.com/s/files/1/0432/1561/8203/files/zofudelukajamidivusav.pdf
    • https://cdn.shopify.com/s/files/1/0428/0749/2775/files/74715645721.pdf
    • https://cdn.shopify.com/s/files/1/0429/8611/1137/files/dotukener.pdf
    • https://cdn.shopify.com/s/files/1/0431/8255/5297/files/18964882576.pdf
    • https://cdn.shopify.com/s/files/1/0437/8597/8013/files/40774475430.pdf
    • https://cdn.shopify.com/s/files/1/0432/2433/4496/files/74833283057.pdf
    • https://cdn.shopify.com/s/files/1/0429/3158/5180/files/81555899780.pdf
    • https://cdn.shopify.com/s/files/1/0431/4854/2109/files/68837776500.pdf
    • https://cdn.shopify.com/s/files/1/0434/5017/1554/files/dujadi.pdf
    • https://cdn.shopify.com/s/files/1/0430/6803/1143/files/19601117287.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_off00024d0b.bin
7621c434f17ef4c1005b7be978cb1d1212a337cc2bf44430d20bf50552bb5a22		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D0B 5244 bytes
font_01_sfnt_off00025eda.bin
5a636e5269c59f5d8af3ee4f5f7ed08bc3a4a5a01a4604a75ac6bd6710319451		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25EDA 16872 bytes

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