Malicious PDF — malware analysis report

Static analysis result for SHA-256 334f3efbfed39c11…

MALICIOUS

PDF

41.8 KB Created: 2020-08-20 18:05:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 64a2ecde2fe0cfd2428dd0e2e3c3db11 SHA-1: d89199f3e4fc70d9a0d04c3b584ad267a5f4398d SHA-256: 334f3efbfed39c1176ac979cbc4ab50979a4f4f767205bb23011615e2076fd1d
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing indicating it links to known malicious redirector infrastructure, specifically to a URL containing 'fluke thermal imaging reporting software'. It also contains a large number of external PDF links, many hosted on Shopify, suggesting a link farm for SEO poisoning or traffic redirection. The primary malicious URL is https://ttraff.com/pify?keyword=fluke+thermal+imaging+reporting+software, which is likely used to redirect the user to a malicious site.

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=fluke+thermal+imaging+reporting+software
    • http://files.kootenaywinecrafters.com/uploads/1/3/1/4/131453124/e7340d.pdf
    • http://neturezu.ruthtenzerfeldman.net/uploads/1/3/1/0/131070722/safozi-nulimovuxuk-debudupereda.pdf
    • http://files.mesumphoto.com/uploads/1/3/1/3/131381799/kuzife.pdf
    • https://cdn.shopify.com/s/files/1/0431/8658/5759/files/69234308548.pdf
    • https://cdn.shopify.com/s/files/1/0438/3745/6534/files/14586526724.pdf
    • https://cdn.shopify.com/s/files/1/0428/3164/2780/files/72353731717.pdf
    • https://cdn.shopify.com/s/files/1/0430/5040/1945/files/background_pics_hd.pdf
    • https://cdn.shopify.com/s/files/1/0431/1823/1709/files/topuzivadoxabu.pdf
    • https://cdn.shopify.com/s/files/1/0427/9920/2467/files/78297683465.pdf
    • https://cdn.shopify.com/s/files/1/0440/7921/8838/files/exercices_corrigs_sur_les_asymptotes.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8871/files/lowuruvoposibadivopawux.pdf
    • https://cdn.shopify.com/s/files/1/0440/1129/0782/files/free_calligraphy_alphabet_template.pdf
    • https://cdn.shopify.com/s/files/1/0431/4746/0768/files/binofafemokew.pdf
    • https://cdn.shopify.com/s/files/1/0463/2913/5265/files/psp_iso_game_psp_cdromance.pdf
    • https://cdn.shopify.com/s/files/1/0432/0781/9422/files/2271871788.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_off000063c1.bin
323357e226d12288c9854b2ae97b2138096f75c1c586660baf5c4df280386854		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63C1 5424 bytes
font_01_sfnt_off00007621.bin
16a571717449d2c61b1085f426cff599ecc27d8b586a94e69d39820995a06d98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7621 10624 bytes

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