Malicious PDF — malware analysis report

Static analysis result for SHA-256 f125f60f65197816…

MALICIOUS

PDF

109.5 KB Created: 2020-08-19 11:24:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 847e9034c85d0ea63576f14032c6fdc1 SHA-1: 48fbc1cdb8ccc3525e30088d9f48332a47bc1958 SHA-256: f125f60f651978165c63c4b31bfc429afd25f754cd108b74639c5100a2f8e4e7
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, indicating a large number of outbound links, with 'cdn.shopify.com' being a dominant host. The embedded URL 'https://ttraff.com/pify?keyword=bulliform+cells+in+grass' is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution 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=bulliform+cells+in+grass
    • http://xagexofep.calbhbc.com/uploads/1/3/1/3/131384240/vitoba_wowaluzibesaj.pdf
    • https://cdn.shopify.com/s/files/1/0430/5800/4117/files/lawukirijupu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dojedeteremedadedarovir.pdf
    • https://cdn.shopify.com/s/files/1/0432/5857/7051/files/zowuzulalaritovaf.pdf
    • https://cdn.shopify.com/s/files/1/0429/9486/0191/files/envision_math_common_core_grade_5.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63537272249.pdf
    • https://cdn.shopify.com/s/files/1/0437/3322/1527/files/crack_ielts_in_a_flash_general_reading_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/8030/2240/files/kowigaxojidufesurotemo.pdf
    • https://cdn.shopify.com/s/files/1/0433/6910/3528/files/cr2_to_jpg.pdf
    • https://cdn.shopify.com/s/files/1/0439/8697/6926/files/gimegozanapapi.pdf
    • https://cdn.shopify.com/s/files/1/0437/8171/8165/files/catequesis_para_nios_juegos.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_off00014778.bin
6a9b2a8c79c7e7fe9c91ee7d1749e499f0a523fc197772b0b8dd07edbb28c63d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14778 13744 bytes
font_01_sfnt_off00017380.bin
08c14e964cc52dd3060e2bbf6fd822a5db290a09e507e2a8cf178bb2cc87e317		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17380 5252 bytes
font_02_sfnt_off00018543.bin
c917643945853ff702fe87ae8f054787a1415a8c6e0ecda1bb8c97ba28378307		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18543 10540 bytes

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