Malicious PDF — malware analysis report

Static analysis result for SHA-256 e142710f6607bb54…

MALICIOUS

PDF

78.6 KB Created: 2020-08-06 01:44:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e1acf3bbfa4bf6297df8d61cc1b11d1 SHA-1: b4b117c4f68e5dda259ef8790ead5c289fe82744 SHA-256: e142710f6607bb54a76c5c65260484ede90eee064e8cbe517c525012d1e238ae
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 characteristics of a PDF link farm, with numerous embedded URLs, including one to 'cdn.shopify.com'. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the redirection attempt. The primary attack pattern involves luring the user to a malicious site via these links.

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=energias+renovables+y+alternativas+pdf
    • http://files.tms-workshop.org/uploads/1/3/0/8/130814855/lales.pdf
    • http://files.eyglandscapes.com/uploads/1/3/2/6/132681336/7138810.pdf
    • http://files.scchea.com/uploads/1/3/2/6/132696104/6517520.pdf
    • http://futugi.framedbytheword.com/uploads/1/3/1/1/131164243/73831c8b27.pdf
    • http://files.sboaschoolmdu.org/uploads/1/3/1/4/131408741/redutipamewobe_rukulatumoxa.pdf
    • https://cdn.shopify.com/s/files/1/0431/4375/7992/files/malaria_plasmodium_life_cycle.pdf
    • https://cdn.shopify.com/s/files/1/0433/6150/1336/files/38449460075.pdf
    • https://cdn.shopify.com/s/files/1/0428/8305/5782/files/5621037092.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bebupikisanomagidilu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9899/6889/files/kujulaxovemuwe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37357510366.pdf
    • https://cdn.shopify.com/s/files/1/0433/9138/5758/files/22720578286.pdf
    • https://cdn.shopify.com/s/files/1/0432/7853/2758/files/58767784346.pdf
    • https://cdn.shopify.com/s/files/1/0432/0860/5859/files/29939629785.pdf
    • https://cdn.shopify.com/s/files/1/0430/7448/6421/files/30426652348.pdf
    • https://cdn.shopify.com/s/files/1/0432/7083/2283/files/80956645470.pdf
    • https://cdn.shopify.com/s/files/1/0431/2888/1313/files/i_wanna_be_down_lyrics.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_off0000ea98.bin
c50460f9f7d2465fc744fa532aa949fc1b8dd1383931942a8e6a2129387c5070		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA98 5468 bytes
font_01_sfnt_off0000fd50.bin
23f9d9d1743eb92e4e733d9587e6fc637113461b7bf2281c95f552dd7fe688ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD50 15232 bytes

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