Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc0924376af698ba…

MALICIOUS

PDF

32.2 KB Created: 2020-08-24 20:21:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a5154dbed7f6ca39b02a88b5453893e SHA-1: 3d78e084f14b8316b72123af89119673f6d2cd50 SHA-256: cc0924376af698bace3731557c87ab71375729338ec9ab9275550a6712f262a9
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links pointing to various PDF files, a technique often used to create link farms for SEO manipulation or to obscure malicious destinations. One of the primary links directs to a known malicious redirector at 'https://ttraff.com/pify?keyword=fly+sheet+k2'. This suggests the document's purpose is to redirect users to potentially harmful content or phishing sites.

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.com/pify?keyword=fly+sheet+k2
    • http://files.sdadata.org/uploads/1/3/0/7/130776728/vebuzarejutawe_wuzakase.pdf
    • https://cdn.shopify.com/s/files/1/0436/0568/8483/files/caesar_ii_game.pdf
    • https://cdn.shopify.com/s/files/1/0431/8956/7650/files/nijiniremobidejuzopur.pdf
    • https://cdn.shopify.com/s/files/1/0435/7141/3155/files/39570544498.pdf
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/kubibexol.pdf
    • https://cdn.shopify.com/s/files/1/0431/5326/0700/files/coraline_full_movie_online_free.pdf
    • https://cdn.shopify.com/s/files/1/0454/4895/4006/files/63897067745.pdf
    • https://cdn.shopify.com/s/files/1/0428/2354/9094/files/golavisatajebi.pdf
    • https://cdn.shopify.com/s/files/1/0436/7931/8166/files/plano_turistico_cartagena.pdf
    • https://cdn.shopify.com/s/files/1/0432/2518/6466/files/wiwebebufodetorajubit.pdf
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/sparknotes_romeo_and_juliet_act_4.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_off00004473.bin
5fe7424918e842859e04aabf0e5e1f9b542c7b8feb765efe58511dd2dc25fba6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4473 4720 bytes
font_01_sfnt_off0000548c.bin
6901cd253f7333ba502891dcaa2c31db23c52acfcb7329f3cda0aafcb314cbd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x548C 9464 bytes

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