Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3952c10dca2036b…

MALICIOUS

PDF

45.6 KB Created: 2020-09-14 07:31:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93a14fbe793a96cde0fd179b34263a73 SHA-1: 93d8c2063532aa9ebef50ad32b1b9e233d265ad5 SHA-256: d3952c10dca2036b2e5a7d4565f54efe6555bb36637581ef1e4b331e4a7027cd
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link farm with numerous embedded URLs, including one pointing to a known malicious redirector. The primary malicious URL is https://ttraff.club/wix?keyword=placer+union+high+school+district+board+meeting, which is likely used to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains references to this malicious URL and other benign-looking PDF links, suggesting a social engineering tactic to disguise the malicious intent.

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.club/wix?keyword=placer+union+high+school+district+board+meeting
    • http://daxuwir.thetreatmentcentersinc.com/uploads/1/3/0/7/130775705/1438565.pdf
    • http://files.belsbullies.com/uploads/1/3/0/7/130739456/korumudenepa_vazolizoritinu_lafin_tozaxezav.pdf
    • http://roper.archangelhumandevelopment.net/uploads/1/3/1/4/131410685/4687734.pdf
    • https://cdn.shopify.com/s/files/1/0477/1682/7292/files/to_kill_a_mockingbird_dialectical_journal_chapter_7.pdf
    • https://cdn.shopify.com/s/files/1/0434/0695/0550/files/penggolongan_obat_analgesik.pdf
    • https://cdn.shopify.com/s/files/1/0435/9972/4702/files/minions_2015_english_subtitles_free.pdf
    • https://cdn.shopify.com/s/files/1/0468/0712/2071/files/78495237274.pdf
    • https://cdn.shopify.com/s/files/1/0432/2869/2643/files/86286835581.pdf
    • https://cdn.shopify.com/s/files/1/0439/4532/8808/files/38473055234.pdf
    • https://cdn.shopify.com/s/files/1/0440/1741/8405/files/zurikaguxorakebusotavala.pdf
    • https://cdn.shopify.com/s/files/1/0434/3152/6557/files/6305291497.pdf
    • https://cdn.shopify.com/s/files/1/0452/5775/2733/files/jemiremutuvokuludi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96258555683.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_off000072ab.bin
32c9005c0e4de2e4b8469289e19a9c886fb82536feebd91b14f619691275672f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72AB 5496 bytes
font_01_sfnt_off00008529.bin
8672d6c51730144080765db2337731bf529a5628233b0f5f2c55b7acd6c1f192		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8529 10476 bytes

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