Malicious PDF — malware analysis report

Static analysis result for SHA-256 30cb29c7981f209b…

MALICIOUS

PDF

42.1 KB Created: 2020-08-19 13:25:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47f748de208a314c7b60ee5bed90f67f SHA-1: 3a432b012ed91506a5cd05d4d5e56ddfb9c7c56d SHA-256: 30cb29c7981f209b18ad63e2d9290de79dcab43b41644fc3d2cc40be8bd5022d
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body also contains the URL 'https://ttraff.cc/pify?keyword=windows+10+setup+file+32+bit', which is likely intended to trick users into downloading a malicious file by impersonating a legitimate software installer. The PDF structure and embedded links suggest a phishing or social engineering attack.

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=windows+10+setup+file+32+bit
    • http://files.generalfurniturenyc.com/uploads/1/3/1/8/131856949/dodugubifirogid.pdf
    • https://cdn.shopify.com/s/files/1/0447/0787/2921/files/panasonic_phone_manual_kx-_tgea20.pdf
    • https://cdn.shopify.com/s/files/1/0431/8055/6452/files/passive_voice_all_tenses_grammar.pdf
    • https://cdn.shopify.com/s/files/1/0433/6680/9765/files/ace_academy_electrical_machines_notes.pdf
    • https://cdn.shopify.com/s/files/1/0431/1102/2756/files/accounting_for_non_accountants.pdf
    • https://cdn.shopify.com/s/files/1/0436/1519/1202/files/sudibawanam.pdf
    • https://cdn.shopify.com/s/files/1/0430/2045/1997/files/sojijazulizuzadokuraga.pdf
    • https://cdn.shopify.com/s/files/1/0433/4718/1718/files/infection_de_l_appareil_urinaire.pdf
    • https://cdn.shopify.com/s/files/1/0437/5930/4858/files/nigerian_criminal_law_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0435/4686/9911/files/82044296166.pdf
    • https://cdn.shopify.com/s/files/1/0437/8106/2813/files/kenuxesejepiminevonadu.pdf
    • https://cdn.shopify.com/s/files/1/0436/3314/8062/files/bipolar_junction_transistor_amplifier_pdf.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_off00006662.bin
76305ee27eb95bee4cca565a2148e42951cc9b7b45dc82a302ed5135e6de6b2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6662 5464 bytes
font_01_sfnt_off0000792e.bin
3837bc56638a7baa6608f330702fbe32e3a5afa9210bab9a04d5d4ea07d8afbe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x792E 10068 bytes

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