Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b3ee65bdaf65c03…

MALICIOUS

PDF

46.3 KB Created: 2020-08-14 19:08:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b49a3645ebb83ad9b8f63f6d60b546c SHA-1: fd99a48a309cb3275ae1c81d656b1248d31ad11e SHA-256: 9b3ee65bdaf65c037176c1de6f6f27e1789c9d7f515802f50c4769be241cf587
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with the primary link directing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/wb?keyword=bunnings%20manual%20grass%20edger', which is flagged as malicious. This suggests the document is designed to redirect users to malicious content, likely for phishing or malware distribution.

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/wb?keyword=bunnings%20manual%20grass%20edger
    • http://files.firstbaptistchurchcantonnewyork.org/uploads/1/3/0/7/130775199/lagatitezedel.pdf
    • http://files.harmonytrainingclub.com/uploads/1/3/0/7/130738607/dujugefugipog_jaloxapavodu_kizodavevawazi.pdf
    • http://files.adara-spa.com/uploads/1/3/2/6/132682882/3237625.pdf
    • https://cdn.shopify.com/s/files/1/0435/9343/3246/files/diseo_de_base_de_datos_distribuidas.pdf
    • https://cdn.shopify.com/s/files/1/0441/0087/8488/files/gre_psychology_practice_test.pdf
    • https://cdn.shopify.com/s/files/1/0435/9503/8877/files/mimanaj.pdf
    • https://cdn.shopify.com/s/files/1/0431/7727/9652/files/eliquis_davis_drug.pdf
    • https://cdn.shopify.com/s/files/1/0437/4691/8551/files/convertir_documento_de_a_word_gratis_en_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0437/0484/4442/files/the_diamond_minecart_horror_map.pdf
    • https://cdn.shopify.com/s/files/1/0431/9117/3282/files/28583023420.pdf
    • https://cdn.shopify.com/s/files/1/0438/2782/2749/files/bsa_boy_scout_handbook.pdf
    • https://cdn.shopify.com/s/files/1/0432/3213/3278/files/98194705222.pdf
    • https://cdn.shopify.com/s/files/1/0433/7028/3173/files/focus_on_the_family_radio_theater.pdf
    • https://cdn.shopify.com/s/files/1/0449/6778/8712/files/autocad_plot_transparency.pdf
    • https://cdn.shopify.com/s/files/1/0437/2099/9064/files/61233824685.pdf
    • https://cdn.shopify.com/s/files/1/0428/5048/4390/files/72065134665.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_off00007a3c.bin
5dd63df5953e748781d7585c897521190737aed356a85e9f211efbe7cdcda3de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A3C 5192 bytes
font_01_sfnt_off00008bc1.bin
7c4b4662221af7a31d041a18a29f032b2243d80ecc6eecbdfff60ede51727c85		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8BC1 9580 bytes

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