Malicious PDF — malware analysis report

Static analysis result for SHA-256 b12549327357f38a…

MALICIOUS

PDF

68.5 KB Created: 2020-08-30 03:40:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 941297c7d86f0aa31605155b00f8494b SHA-1: 6fa2e1f8e5b9b3cef26910c27cffed24c26a545d SHA-256: b12549327357f38a2860e13f98f25682fb7208e124409de7207f087db728695c
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link farm and a direct link to a known malicious redirector, suggesting a phishing or scam attempt. The document body, though heavily obfuscated, contains the target URL and references a manual, aligning with a lure to trick users into clicking the malicious link. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the presence of a link to malicious infrastructure.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=wayne+dalton+wizard+2113+manual
    • https://cdn.shopify.com/s/files/1/0440/2357/8774/files/favevekimizidibonabopujer.pdf
    • https://cdn.shopify.com/s/files/1/0432/3095/3630/files/libro_amando_a_pablo_odiando_a_escobar_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0449/1975/0811/files/65198908884.pdf
    • https://cdn.shopify.com/s/files/1/0435/1167/7083/files/sickle_bar_mower_kubota.pdf
    • https://cdn.shopify.com/s/files/1/0438/2624/9885/files/zujuje.pdf
    • https://cdn.shopify.com/s/files/1/0429/8516/0857/files/medical_terminology_a_short_course_8th_edition_access_code.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/surorut.pdf
    • https://static.usrfiles.com/ugd/7198c1_8560d772de284d398f3b64e3b5cc6841.pdf
    • https://static.usrfiles.com/ugd/b8c837_426e891f1dd64b5bae7b05d0f50b8888.pdf
    • https://static.usrfiles.com/ugd/b8c837_fb300e67e18847b8bad37b61f7f30ea1.pdf
    • https://static.usrfiles.com/ugd/bb13a2_6337114070b74c8a9135c98cc84a7d17.pdf
    • https://static.usrfiles.com/ugd/8b2c09_2decae3b0d944d5f85892a83df88d843.pdf
    • https://cdn.shopify.com/s/files/1/0433/0523/8688/files/22565647831.pdf
    • https://cdn.shopify.com/s/files/1/0440/9065/4870/files/73657924739.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_off0000c232.bin
686733c1d266af2711c976e95aa84148c460b98e3829a55c03952a6ff1bfb895		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC232 5396 bytes
font_01_sfnt_off0000d4a3.bin
644cd973a6bd93ec7c94c34757db056aa6a2ca69f4cea6b92b456e03f44584d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD4A3 15952 bytes

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