Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7b3ee264792d055…

MALICIOUS

PDF

43.6 KB Created: 2020-08-24 14:07:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 726d844db9cf7b6a63160ceeecbc4a2e SHA-1: ac07f4e6b5095cd357511ead541bd7ec3bdb842e SHA-256: f7b3ee264792d0550c44b4370ba844cecb833b0fe7f4f2c5cc0be0f95f17cde2
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the URL that is used in the lure. The PDF also contains a large number of external links, many of which point to Shopify domains, suggesting a link farm for SEO poisoning or to host further malicious content.

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=everest+base+camp+map+pdf
    • http://zotinaze.oceansideteachers.org/uploads/1/3/0/7/130775934/4483351.pdf
    • http://pumoti.bikiniusa.com/uploads/1/3/1/1/131164250/4579696.pdf
    • http://goxelit.kitsapcounselingservices.com/uploads/1/3/0/7/130738850/kozeme.pdf
    • http://files.margauxfashiondesigns.com/uploads/1/3/0/8/130873941/8edd98b9c.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pajovi.pdf
    • https://cdn.shopify.com/s/files/1/0434/7048/7712/files/bose_revolve_plus_manual.pdf
    • https://cdn.shopify.com/s/files/1/0463/2710/3650/files/86865533439.pdf
    • https://cdn.shopify.com/s/files/1/0435/6807/0824/files/fosalixumid.pdf
    • https://cdn.shopify.com/s/files/1/0451/5692/5594/files/regivowipetomusig.pdf
    • https://cdn.shopify.com/s/files/1/0440/0673/6037/files/64062179085.pdf
    • https://cdn.shopify.com/s/files/1/0438/2982/1600/files/fopujapaloguroweduribu.pdf
    • https://cdn.shopify.com/s/files/1/0435/8491/3565/files/fasisu.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/projet_d_aviculture.pdf
    • https://cdn.shopify.com/s/files/1/0433/4626/4213/files/89726144374.pdf
    • https://cdn.shopify.com/s/files/1/0432/0103/6443/files/developer_mode_chromebook.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006060.bin
fa32d3772b0470cf0f22e5070d021783f36798bf03351699ca71177b877d8eab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6060 4948 bytes
font_01_sfnt_off0000712b.bin
893b008d9567b62100e16a943c0e1affac0913d0a4941d39c916223b3716afe2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x712B 10020 bytes
font_02_sfnt_off0000936d.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x936D 4324 bytes

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