Malicious PDF — malware analysis report

Static analysis result for SHA-256 d699f7d39286a144…

MALICIOUS

PDF

42.5 KB Created: 2020-08-30 06:19:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4db391a339dd3f61cc74e502ce848de2 SHA-1: 62c9f5224c9f0d1ffd08ee36c3545547b3c3e5e9 SHA-256: d699f7d39286a14439fcb2a556f3db83c8a268a638ed85ca6cac243f822647ae
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with one heuristic specifically identifying it as a PDF link farm. One of these links, 'https://ttraff.cc/wix?keyword=triple+play+pdf', is flagged as a known malicious redirector. The document body appears to be heavily obfuscated, but the presence of the malicious redirector URL and the mass of external links strongly suggest a traffic-driving or phishing campaign.

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/wix?keyword=triple+play+pdf
    • https://static.usrfiles.com/ugd/b8c837_965648b0150f4fe2a9a34765e31ff998.pdf
    • https://static.usrfiles.com/ugd/ca300b_81392dcdfae34c5591e37df2d702bde3.pdf
    • https://static.usrfiles.com/ugd/bfbc46_7515efd4dbbf4a3e82130ac0c76fe9f9.pdf
    • https://static.usrfiles.com/ugd/accd1f_f38019e6b68a41bcb697088cd8ee40e2.pdf
    • https://static.usrfiles.com/ugd/a18aa6_7cbfc6d675da4385b35abdb904eb22b5.pdf
    • https://static.usrfiles.com/ugd/f65518_3a0d63498a5f43b6aa57539e709440a7.pdf
    • https://static.usrfiles.com/ugd/b8c837_0fa239f3bdb440fdab8ffae0ecfc174e.pdf
    • https://static.usrfiles.com/ugd/93971e_1a8900a8680942209435aee563ecc1bf.pdf
    • https://static.usrfiles.com/ugd/2813e2_b9ce16e63092494c851f559556bfd45a.pdf
    • https://static.usrfiles.com/ugd/5cf23b_f9172bb593454d81a54b1eda968828fe.pdf
    • https://static.usrfiles.com/ugd/b8c837_969d7d6b1acf4c748d9fed53a9ac2355.pdf
    • https://static.usrfiles.com/ugd/b8c837_876449ef327f4cc7a744b2149235bcaa.pdf
    • https://static.usrfiles.com/ugd/87a178_3b60476fb2374f8488bf7878deb91e0c.pdf
    • https://cdn.shopify.com/s/files/1/0436/5654/4409/files/gta_4_car_mods.pdf
    • https://cdn.shopify.com/s/files/1/0431/3510/7233/files/3978118488.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_off000069da.bin
58ca8d22dc2a687b49b4f3bfa578f6599af9d9d08c36f6105c991c6765cb905a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69DA 4908 bytes
font_01_sfnt_off00007aa0.bin
c58389e392b6331c37b3a69e3788c52f0ce33e6bb825c48a4904fbc05ff63b28		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA0 10536 bytes

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