Malicious PDF — malware analysis report

Static analysis result for SHA-256 a96f29bbd509889d…

MALICIOUS

PDF

40.8 KB Created: 2020-08-21 00:24:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 498a8b1e507076928885de21b4315ba7 SHA-1: 653ec08ea1aef9d9f80afcab5b5774f1700a4b03 SHA-256: a96f29bbd509889dff5383e106f2146f2647c6e452a6cf50a4ca9e9ce25e5d84
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-Override

The PDF contains a significant number of embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=beautiful+boy+pictures'. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting a social engineering lure to drive traffic 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=beautiful+boy+pictures
    • http://jesuxa.bilgerdesign.net/uploads/1/3/1/4/131407995/7ee8c7754.pdf
    • http://files.napaneefamilyeyecare.ca/uploads/1/3/1/4/131407493/kakepezi-gosenu-xavudig-mitide.pdf
    • http://files.japanesepruningsaw.com/uploads/1/3/1/4/131408738/rasemezanaza_sanarimukulim_sujer_laxokas.pdf
    • https://cdn.shopify.com/s/files/1/0429/4803/4716/files/19877158137.pdf
    • https://cdn.shopify.com/s/files/1/0435/4991/7347/files/akamai_netsession_client.pdf
    • https://cdn.shopify.com/s/files/1/0428/0870/5187/files/agricultural_innovation_systems.pdf
    • https://cdn.shopify.com/s/files/1/0431/8180/1629/files/xazipa.pdf
    • https://cdn.shopify.com/s/files/1/0431/9199/2480/files/padejedidalasosu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9604/7783/files/zuzupofijebu.pdf
    • https://cdn.shopify.com/s/files/1/0428/8249/8716/files/49500923629.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_off00006232.bin
3b3f85b44fa68ce0218a9d8660b64d21672809601a161512705c12f95f09b566		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6232 5300 bytes
font_01_sfnt_off00007449.bin
a792ea38cdd3477ffd44dbb2983a041f199c4349bb008e8d6116bbaa8620773f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7449 10160 bytes

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