Malicious PDF — malware analysis report

Static analysis result for SHA-256 44269d68bea1d4e0…

MALICIOUS

PDF

35.7 KB Created: 2020-08-30 15:51:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5924295eea1d4a4fb78cec92590b4502 SHA-1: f5ba174b7562f50d2066428c58009f0f83368110 SHA-256: 44269d68bea1d4e0711f7f22e85129591059923a910912784b99ae63a2995563
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link. This link, 'https://ttraff.cc/wix?keyword=locomotive+%25C3%25A0+vapeur+dessin', is likely the primary mechanism for delivering a malicious payload or directing users to a phishing page. The file also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF documents, suggesting a broader campaign for SEO manipulation or traffic redirection.

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=locomotive+%25C3%25A0+vapeur+dessin
    • https://static.usrfiles.com/ugd/b8c837_d09a7755d81c41c5be4fe9e2f898cce6.pdf
    • https://static.usrfiles.com/ugd/b8c837_2afa957cc30b4f80917b941c4e026d12.pdf
    • https://static.usrfiles.com/ugd/b8c837_5a3ad819ca7040918230151a692985cc.pdf
    • https://static.usrfiles.com/ugd/4cf28d_d11f9f71841f435e9055fed8661016f5.pdf
    • https://cdn.shopify.com/s/files/1/0461/9704/7447/files/2791591296.pdf
    • https://cdn.shopify.com/s/files/1/0431/3081/4621/files/xikizugurotilukeburexa.pdf
    • https://cdn.shopify.com/s/files/1/0430/6780/1749/files/zinujagazomafewarav.pdf
    • https://cdn.shopify.com/s/files/1/0447/8697/4869/files/wafer_paper_cakes.pdf
    • https://static.usrfiles.com/ugd/913720_8d29fd6915c546d3aae9975a51a295e7.pdf
    • https://static.usrfiles.com/ugd/11f207_00138b60257e4f4c95abbf3b1785bc74.pdf
    • https://static.usrfiles.com/ugd/f84671_e89d5f8cbd2a4f86a215ca0d4e8a4616.pdf
    • https://static.usrfiles.com/ugd/b8c837_a5a42b1e2bd64bd5809fbedd7ab6d539.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_off00004e30.bin
735333f47c3d90c3a8dd8b25c7f1305b4036c041279c1c147e933a20e4442841		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E30 5420 bytes
font_01_sfnt_off00005ffe.bin
85984e65052961ccd48ed1cd4b1d8f766ff6c033972e6d066f1ccd8a9ed00b0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FFE 10124 bytes

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