Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0721fc2dfbb43e2…

MALICIOUS

PDF

42.6 KB Created: 2020-08-21 14:31:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ec0f4fef3cebe97166b2ad2dda72b08a SHA-1: 88d5e801ed0c70361c610eb8da50d15562d45e3d SHA-256: e0721fc2dfbb43e2e10ecf2d3ef3bdca1797d50c1180d5e04e1e942aeb64dfa7
130 Risk Score

Malware Insights

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

The PDF file contains a prominent link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body mentions 'e canvassing app' and includes a call-to-action phrase, suggesting a lure to trick users into clicking the malicious link. The PDF also hosts a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic, which is a common tactic for distributing malware or phishing content.

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.cc/pify?keyword=e+canvassing+app
    • http://files.arasurgery.org/uploads/1/3/1/8/131871554/kewuluzuwajoz_madawujezatetuw_xugep.pdf
    • https://cdn.shopify.com/s/files/1/0439/0027/2792/files/xederokisiriwame.pdf
    • https://cdn.shopify.com/s/files/1/0437/7998/1470/files/executive_producer_contract.pdf
    • https://cdn.shopify.com/s/files/1/0437/9177/7952/files/technical_interview_questions_on_dbms.pdf
    • https://cdn.shopify.com/s/files/1/0430/9372/1255/files/99277017250.pdf
    • https://cdn.shopify.com/s/files/1/0433/0940/0214/files/7494499460.pdf
    • https://cdn.shopify.com/s/files/1/0434/3277/1734/files/bizhub_c258_brochure.pdf
    • https://cdn.shopify.com/s/files/1/0437/7814/6462/files/du_b._ed_admission_2019_online_form.pdf
    • https://cdn.shopify.com/s/files/1/0433/8001/5271/files/movimiento_rectilineo_uniformemente_retardado_wikipedia.pdf
    • https://cdn.shopify.com/s/files/1/0431/6335/3244/files/onn_remote_codes.pdf
    • https://cdn.shopify.com/s/files/1/0428/9665/4489/files/bartholin_abscess_treatment.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_off00006864.bin
5c3136b9ecdf992db9125bda674cccbcdfd7d71713dc48838a330c5f45ddcb02		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6864 4992 bytes
font_01_sfnt_off0000797f.bin
a82d9113dc2ad6ade53e4b5846c30623645a5e9a5f7e614894fe248ebed72c2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x797F 10828 bytes

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