Malicious PDF — malware analysis report

Static analysis result for SHA-256 d18cc0c80937a104…

MALICIOUS

PDF

42.2 KB Created: 2020-09-05 15:47:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4718def6565f9a3e921c11250958ebed SHA-1: 037297f423a079e9f146aae2429908c11bccff3c SHA-256: d18cc0c80937a10476a2132cb372d14e2cbd65675eb713466397f7e0a7ea9f7b
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.me'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with the primary one being a Shopify URL. The document body, though partially corrupted, contains the malicious URL and text suggesting a lure related to 'interacciones medicamentosas aines pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure.

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.me/wix?keyword=interacciones+medicamentosas+aines+pdf
    • https://cdn.shopify.com/s/files/1/0431/3304/2839/files/dominos_uk_menu.pdf
    • https://cdn.shopify.com/s/files/1/0430/4447/0945/files/xatawikewifipitanifu.pdf
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/91608830714.pdf
    • https://cdn.shopify.com/s/files/1/0428/5680/8607/files/82030728994.pdf
    • https://cdn.shopify.com/s/files/1/0433/3902/2485/files/tiwogopetokelulut.pdf
    • https://static.usrfiles.com/ugd/d8e941_f79efed86d5544ffa6746a3e8b094d89.pdf
    • https://static.usrfiles.com/ugd/286fb8_3f554b32e01548dda403be7a8dba29dc.pdf
    • https://static.usrfiles.com/ugd/9757e7_8249ef9844ab43098c091633c9b099bd.pdf
    • https://static.usrfiles.com/ugd/d9d1f5_e18c2ad4f8b34164a7b5a2f369d19ae8.pdf
    • https://cdn.shopify.com/s/files/1/0433/3505/7559/files/driver_printer_brother_mfc-_j2330dw.pdf
    • https://cdn.shopify.com/s/files/1/0435/3789/1477/files/96114620077.pdf
    • https://cdn.shopify.com/s/files/1/0436/9760/2713/files/89625313783.pdf
    • https://cdn.shopify.com/s/files/1/0428/8725/0087/files/watch_t25_workout_online_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/5272/0543/files/8737766116.pdf
    • https://static.usrfiles.com/ugd/d79848_840ed60784c44809a5708762f879af39.pdf
    • https://static.usrfiles.com/ugd/8ab72e_091276c46a484acabf16a391b4c5c9dd.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_off000063d3.bin
51f0414d392f20aaad851bf6023fcfdf62ce9ed15273cd998b174b5581939d3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63D3 5208 bytes
font_01_sfnt_off00007570.bin
910949c0f1c79c536b58da6a29210afc641147253d54f6dc28f9ae546e327759		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7570 11184 bytes

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