Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bc0ac050b4ce2a8…

MALICIOUS

PDF

53.6 KB Created: 2020-08-10 18:09:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e1d9b5518bd654050208261f7f9f563 SHA-1: c15e865af7238a9281fff75311ac0a292536ef32 SHA-256: 2bc0ac050b4ce2a88434fb9cd1358c3b5d13c0431faacb4e37de2f4c8590af00
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one pointing to a known malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting a tactic to manipulate search engine results or distribute further malicious content. The presence of the URL 'https://ttraff.com/pify?keyword=mala+absorcion+intestinal+pdf' strongly suggests a malicious redirection attempt.

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=mala+absorcion+intestinal+pdf
    • http://files.jimbrantleyrealty.com/uploads/1/3/2/6/132696104/gosaledodezopikefutu.pdf
    • http://files.mayusaeki.com/uploads/1/3/0/8/130873880/a31fee30b.pdf
    • http://tazimojo.vasanthivanniasingham.com/uploads/1/3/0/8/130814297/7038913.pdf
    • http://files.ametkorca.com/uploads/1/3/0/8/130814297/tanuxanunek.pdf
    • http://files.greatestpearlwithin.com/uploads/1/3/1/6/131606730/mojop.pdf
    • https://cdn.shopify.com/s/files/1/0437/6012/4065/files/41937545979.pdf
    • https://cdn.shopify.com/s/files/1/0437/4344/5141/files/29242212026.pdf
    • https://cdn.shopify.com/s/files/1/0430/9018/2304/files/fajebedewavevodovalu.pdf
    • https://cdn.shopify.com/s/files/1/0429/4125/1747/files/manual_of_emergency_airway_management_4th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0429/2254/1209/files/49478271366.pdf
    • https://cdn.shopify.com/s/files/1/0431/1715/0368/files/84708610822.pdf
    • https://cdn.shopify.com/s/files/1/0433/5733/9816/files/anemia_in_pregnancy_malaysia.pdf
    • https://cdn.shopify.com/s/files/1/0436/2086/0064/files/mogadinorawisaxabiguj.pdf
    • https://cdn.shopify.com/s/files/1/0435/5129/3603/files/citizen_blue_angels_watch_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/6617/1297/files/20087392473.pdf
    • https://cdn.shopify.com/s/files/1/0434/6200/0806/files/tesda_bookkeeping_reviewer.pdf
    • https://cdn.shopify.com/s/files/1/0433/1867/3566/files/sijasa.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_off00009475.bin
90b47894bef92d373ab405e529772da4cbf9095dbe820fdd4a0689ba3b693e91		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9475 5292 bytes
font_01_sfnt_off0000a67a.bin
7379953c9251f8455613acf1313a0c46b3029f16307e8dbecd8eb22d06c55be1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA67A 10520 bytes

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