Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cad66427de168a4…

MALICIOUS

PDF

63.3 KB Created: 2020-08-25 21:06:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 484701665600470a9e916bbf8bda6e68 SHA-1: a45aa31bc2f27f953bbff29459cc9f14c089fe61 SHA-256: 2cad66427de168a44613810fdc8e1b6ba31fc02a49ebd386e1c8a19a4a20fd76
120 Risk Score

Malware Insights

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

The PDF document contains a significant number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.ru/pify?keyword=kurt+vonnegut+breakfast+of+champions+online', is identified as a malicious redirector. This suggests the document's purpose is to direct users to malicious infrastructure, 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.ru/pify?keyword=kurt+vonnegut+breakfast+of+champions+online
    • http://files.raptorssoccerclub.org/uploads/1/3/1/8/131871537/712690.pdf
    • https://cdn.shopify.com/s/files/1/0437/5796/1374/files/10997315099.pdf
    • https://cdn.shopify.com/s/files/1/0433/2588/2518/files/private_hottie_utopia.pdf
    • https://cdn.shopify.com/s/files/1/0438/3621/1362/files/bandar_malaysia_project.pdf
    • https://cdn.shopify.com/s/files/1/0463/7078/3393/files/estate_executor_guide.pdf
    • https://cdn.shopify.com/s/files/1/0437/1241/3851/files/wukiluvuz.pdf
    • https://cdn.shopify.com/s/files/1/0435/7832/7203/files/elementary_stability_and_bifurcation_theory.pdf
    • https://cdn.shopify.com/s/files/1/0430/5354/7677/files/sociologija_smiljka_tomanovic_knjiga.pdf
    • https://cdn.shopify.com/s/files/1/0429/2660/4447/files/mizejexufejusa.pdf
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/battlestar_galactica_blood_and_chrome.pdf
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/99318740895.pdf
    • https://cdn.shopify.com/s/files/1/0431/2766/8890/files/watchmen_comic_online_espaol.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_off0000b9ec.bin
4aca72c73cf3a6ffc07bc42615a40d171e8009c1543e9e35edd9486d4a9db6e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB9EC 5660 bytes
font_01_sfnt_off0000cd0e.bin
86fd3ff46e66304aeb175a596323b2d3c9aa6f49df05ec278e27a1ffc9dec267		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCD0E 10352 bytes

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