Malicious PDF — malware analysis report

Static analysis result for SHA-256 4bbc275ec65b0027…

MALICIOUS

PDF

42.0 KB Created: 2020-08-12 06:33:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40e577daec49a0a2e793019b637e8964 SHA-1: 628480a61ab2fa6e6a02935d17c0ea6dd91a02e0 SHA-256: 4bbc275ec65b0027fd7d1dc54ad56d19522313098314eff8a1c7b90ca8a4a241
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains a URL pointing to a redirector service, suggesting a phishing or redirection attempt. The primary malicious URL identified is https://ttraff.com/pify?keyword=adnan+khashoggi+book+pdf, which is likely used to funnel victims to a malicious site.

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=adnan+khashoggi+book+pdf
    • http://files.envercreeklibrary.com/uploads/1/3/1/8/131856290/5624897.pdf
    • http://files.kaseycummings.com/uploads/1/3/1/4/131411147/1978159.pdf
    • http://rotebapa.micahmakespots.com/uploads/1/3/0/8/130814788/gebiwo.pdf
    • https://cdn.shopify.com/s/files/1/0433/5173/6488/files/nogoli.pdf
    • https://cdn.shopify.com/s/files/1/0429/8529/1937/files/math_vocabulary_words.pdf
    • https://cdn.shopify.com/s/files/1/0435/6302/4542/files/80884248705.pdf
    • https://cdn.shopify.com/s/files/1/0431/5663/5816/files/wunderground_tenakee_springs.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96626323422.pdf
    • https://cdn.shopify.com/s/files/1/0434/5731/4977/files/pibozitasuborebuladu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/95181885481.pdf
    • https://cdn.shopify.com/s/files/1/0429/5386/7427/files/3386392971.pdf
    • https://cdn.shopify.com/s/files/1/0430/3149/4810/files/karl_marx_alienated_labor.pdf
    • https://cdn.shopify.com/s/files/1/0432/7692/7141/files/5373318385.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/guwesimutetalajizobanubel.pdf
    • https://cdn.shopify.com/s/files/1/0431/0751/6565/files/atv_offroad_fury_2_cheats.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_off000063c0.bin
512d4f5c8f29ef12298cad6a2f7354498853af366cd49fab2ae35ec3bd4bf973		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63C0 5368 bytes
font_01_sfnt_off00007604.bin
9107390287c3759221ddf3e2d3c3356d16a7ebfe6f0ca09b7af01a3ee729d029		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7604 10960 bytes

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