Malicious PDF — malware analysis report

Static analysis result for SHA-256 577fddf9c0f5f771…

MALICIOUS

PDF

49.5 KB Created: 2020-08-02 01:55:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5253a5500034dac8d4c253f5f09443bd SHA-1: b7ee3feffe28a3c7a0efec830ef41aaf7515c724 SHA-256: 577fddf9c0f5f771c428911cb8926f88e06ea79e374a3bf0fd128b2d2c6f5bd9
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though partially corrupted, contains text related to 'La Jolla tide chart' and the wkhtmltopdf tool, suggesting a lure to disguise the malicious intent. The primary malicious URL is https://ttraff.cc/pify?keyword=la+jolla+tide+chart, which is likely used to redirect the user to a phishing or scam page.

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.cc/pify?keyword=la+jolla+tide+chart
    • http://files.proficiencyfirst.com/uploads/1/3/1/3/131383544/047093.pdf
    • http://files.greektheatro.org/uploads/1/3/1/4/131406222/lexusojebevoza.pdf
    • http://files.shepherdsofanarchy.com/uploads/1/3/1/8/131857315/vemigofito-wureboguzetuka-xajata.pdf
    • https://cdn.shopify.com/s/files/1/0435/3631/8616/files/8571395997.pdf
    • https://cdn.shopify.com/s/files/1/0437/8938/5885/files/lipuxolobavibupi.pdf
    • https://cdn.shopify.com/s/files/1/0427/6341/9814/files/giduzop.pdf
    • https://cdn.shopify.com/s/files/1/0438/5207/1074/files/nafiferofaxaderalix.pdf
    • https://cdn.shopify.com/s/files/1/0430/6403/3429/files/67962746685.pdf
    • https://cdn.shopify.com/s/files/1/0433/6504/0286/files/4085955706.pdf
    • https://cdn.shopify.com/s/files/1/0432/2610/3971/files/bapuborojiwivi.pdf
    • https://cdn.shopify.com/s/files/1/0432/9000/1572/files/runopifovozazedas.pdf
    • https://cdn.shopify.com/s/files/1/0434/4214/3397/files/fuzoreg.pdf
    • https://cdn.shopify.com/s/files/1/0429/7405/2503/files/21035029390.pdf
    • https://cdn.shopify.com/s/files/1/0437/6012/4061/files/81708976570.pdf
    • https://cdn.shopify.com/s/files/1/0429/1022/0447/files/zojopisuk.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_off00006f07.bin
e0eba94f84ad2257251695bfe47db345728dce3d208826c9ff53a075bcda50aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F07 4548 bytes
font_01_sfnt_off00007e87.bin
d005a5690634e48d6c01ee7db93877ea357f00a68b597c811697a88f80741af2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E87 14508 bytes
font_02_sfnt_off0000ab62.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAB62 4324 bytes

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