Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcd8d94f2ee2d876…

MALICIOUS

PDF

44.1 KB Created: 2020-08-06 23:57:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6dd715e9d10b7923f0629d053079aef2 SHA-1: 2cd792de493c2776f8fbb8d62e6d1d537b590ee5 SHA-256: fcd8d94f2ee2d8763eff6b8de051ddcbaa9134ba3636c05ecad4edd85f73146d
140 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text fragments and URLs that suggest a lure, potentially for a callback phishing or tech-support scam. The presence of a malicious redirector link and a link farm indicates an attempt to direct users to harmful content.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.ru/pify?keyword=reglage+carburateur+scooter+2+temps+pdf
    • http://doloba.brrclub.com/uploads/1/3/1/0/131070792/6805500.pdf
    • http://files.thesuccessfulprincipal.org/uploads/1/3/2/3/132302924/kizonipavuniwas.pdf
    • http://files.myfullcirclefarms.com/uploads/1/3/1/3/131383480/begekoda.pdf
    • https://cdn.shopify.com/s/files/1/0432/9088/6312/files/xiwusubifiresupamil.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/22584543347.pdf
    • https://cdn.shopify.com/s/files/1/0429/8804/4442/files/nuwemuvol.pdf
    • https://cdn.shopify.com/s/files/1/0433/4472/4133/files/namukitamopuvu.pdf
    • https://cdn.shopify.com/s/files/1/0446/9240/6428/files/artisan_bread_in_five_minutes_a_day.pdf
    • https://cdn.shopify.com/s/files/1/0433/4531/3941/files/zovudafejulupo.pdf
    • https://cdn.shopify.com/s/files/1/0436/4887/6702/files/bistro_romain_carte.pdf
    • https://cdn.shopify.com/s/files/1/0437/3322/1527/files/crack_ielts_in_a_flash_general_reading_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/0352/6820/files/turugix.pdf
    • https://cdn.shopify.com/s/files/1/0432/3740/8936/files/xivobakakadavanufa.pdf
    • https://cdn.shopify.com/s/files/1/0433/5976/4634/files/adamantite_armor_terraria.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_off00006aeb.bin
499096212c5467ed061eee888134a589ab19bfb4f0060f7bf1a774cfa4ece7c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AEB 5756 bytes
font_01_sfnt_off00007e70.bin
e82676bf54ef91de77d0f90c3c6689e50b7c45c0f44d9ba3d49ff0f7cba0ac6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E70 10968 bytes

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