Malicious PDF — malware analysis report

Static analysis result for SHA-256 22fd1f06a8554093…

MALICIOUS

PDF

41.3 KB Created: 2020-08-03 07:28:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 767d159916ed9f8ab8906be59073ff8a SHA-1: e8fe7f65d7b381040781f9c2f198f09e4b9cef16 SHA-256: 22fd1f06a85540939904be57719537f38d3b586e9abbb192a71106f16d51566d
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic firing indicates a direct link to a known malicious redirector at `https://ttraff.ru/pify?keyword=super+pocket+bikes+for+sale`. The document body, though heavily obfuscated, contains text related to 'pocket bikes for sale' and the redirector URL, reinforcing the lure. No scripts were extracted from this sample.

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.ru/pify?keyword=super+pocket+bikes+for+sale
    • http://files.thespareroombook.com/uploads/1/3/2/7/132740595/0a313.pdf
    • http://files.garchen.store/uploads/1/3/2/7/132740309/jetumowumizizul-dinonowagobolo-solupa.pdf
    • http://files.treyaoueillemd.com/uploads/1/3/1/1/131164431/dikelesiliko.pdf
    • https://cdn.shopify.com/s/files/1/0431/4886/9789/files/fiwifujatagi.pdf
    • https://cdn.shopify.com/s/files/1/0430/7035/7653/files/61632364087.pdf
    • https://cdn.shopify.com/s/files/1/0448/0257/2437/files/7._1._5_wow_patch_notes.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15900382268.pdf
    • https://cdn.shopify.com/s/files/1/0432/3033/1040/files/foxoligelupizopik.pdf
    • https://cdn.shopify.com/s/files/1/0435/0682/7429/files/zejan.pdf
    • https://cdn.shopify.com/s/files/1/0430/2084/5210/files/24460027884.pdf
    • https://cdn.shopify.com/s/files/1/0431/7449/4369/files/affairscloud_pocket_pdf_2020.pdf
    • https://cdn.shopify.com/s/files/1/0432/5353/0788/files/robatefuseselunilegekaji.pdf
    • https://cdn.shopify.com/s/files/1/0432/9596/5352/files/gogamebelakevug.pdf
    • https://cdn.shopify.com/s/files/1/0432/5598/8374/files/19884398008.pdf
    • https://cdn.shopify.com/s/files/1/0433/3761/3461/files/11282298079.pdf
    • https://cdn.shopify.com/s/files/1/0432/7243/7913/files/94138568233.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_off00006290.bin
e4a6803f1418af5fc304a56f7a7b11557e8322ad04a97f48e32deab3501388c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6290 5316 bytes
font_01_sfnt_off000074b5.bin
6aa0fa6fbcd38439b8c5344963c8a33dbfffd87541be88e8a2a0878a87b25275		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74B5 10444 bytes

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