Malicious PDF — malware analysis report

Static analysis result for SHA-256 e38e26bb26a256b0…

MALICIOUS

PDF

42.0 KB Created: 2020-08-11 06:51:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 82a7311d299bc1ae9bdc116416010096 SHA-1: 6285c3eed81e4ff007c1a4c54b4afb4c92b0fd85 SHA-256: e38e26bb26a256b0eebae0c6ffe64a22d8133a2cf868c0c1f43cb035fcd5b7a5
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many pointing to Shopify domains, forming a link farm. One critical heuristic identified a redirector link to 'ttraff.com', indicating a malicious redirection attempt. The document body, though heavily obfuscated, contains the same redirector URL. 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.com/pify?keyword=blood+clotting+pathway+pdf
    • http://files.createmoremusic.com/uploads/1/3/0/8/130814209/0d49a85ae82c47.pdf
    • http://files.lironstravelblog.com/uploads/1/3/1/0/131070459/buwudejumide-mawedababibu-zegudotiboba-jekaloniko.pdf
    • http://nawomilu.miradorkidsyoga.com/uploads/1/3/1/4/131483154/93a3e439de69.pdf
    • https://cdn.shopify.com/s/files/1/0435/5971/4971/files/vokenijusesiliw.pdf
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/18763784262.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kilezibuvi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3877/7249/files/wazos.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nemevisofopanufu.pdf
    • https://cdn.shopify.com/s/files/1/0433/7768/8743/files/sunej.pdf
    • https://cdn.shopify.com/s/files/1/0432/8787/1646/files/39814249563.pdf
    • https://cdn.shopify.com/s/files/1/0432/9901/2763/files/schneider_electric_building_management_system.pdf
    • https://cdn.shopify.com/s/files/1/0440/6876/5861/files/11268571222.pdf
    • https://cdn.shopify.com/s/files/1/0433/6022/3382/files/discord_bot_send_message_to_channel.pdf
    • https://cdn.shopify.com/s/files/1/0431/1223/5159/files/bilosubub.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_off000065b9.bin
24519365cd051f968e6b86e06194b7fdc1f11382bffe525758b368d4b6cca5a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65B9 5388 bytes
font_01_sfnt_off00007823.bin
e8b2b3f7758dde8c0c399117459dbe71c0e7dc30620ecf133b673258d0b76e9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7823 10488 bytes

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