Malicious PDF — malware analysis report

Static analysis result for SHA-256 a252f72b4ba5ddf0…

MALICIOUS

PDF

40.8 KB Created: 2020-08-02 22:29:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 88ca38e3b1cd8285f1a2fc8346b3163d SHA-1: 8a4ff7e2a36fc0a22bf2e21ff77903f1a71c7a9a SHA-256: a252f72b4ba5ddf06b562b285761cc4dcb51c510e2ae3b0be1f8d0c334d4d89a
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with one specifically identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting an attempt to manipulate search engine results or distribute malicious content through a link farm. The primary malicious URL identified is https://ttraff.cc/pify?keyword=taylormade+r7+driver, which likely serves as a gateway to further malicious activity.

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/pify?keyword=taylormade+r7+driver
    • http://files.indianamainecoons.com/uploads/1/3/0/7/130739369/4859418.pdf
    • http://files.soundtechph.com/uploads/1/3/0/8/130813732/zorenamame.pdf
    • http://files.superspecracing.com/uploads/1/3/0/8/130874213/zilizopebefowuniwup.pdf
    • http://files.drinkcomkom.com/uploads/1/3/1/4/131408942/9506226.pdf
    • https://cdn.shopify.com/s/files/1/0434/1796/0604/files/2519171662.pdf
    • https://cdn.shopify.com/s/files/1/0432/5769/2315/files/77331214822.pdf
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/gupid.pdf
    • https://cdn.shopify.com/s/files/1/0435/0178/1156/files/santa_banta_wall_paper.pdf
    • https://cdn.shopify.com/s/files/1/0433/1952/5534/files/wizuwedaxaxemaxawujidij.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/59854739703.pdf
    • https://cdn.shopify.com/s/files/1/0435/3854/6840/files/2844369719.pdf
    • https://cdn.shopify.com/s/files/1/0436/9501/4042/files/bofajal.pdf
    • https://cdn.shopify.com/s/files/1/0440/8619/8424/files/ximurigamujupofag.pdf
    • https://cdn.shopify.com/s/files/1/0428/9495/0556/files/luvoxoli.pdf
    • https://cdn.shopify.com/s/files/1/0431/6214/0840/files/30945172676.pdf
    • https://cdn.shopify.com/s/files/1/0432/8534/8510/files/witcher_3_dangerous_game.pdf
    • https://cdn.shopify.com/s/files/1/0430/6095/3249/files/myanimelist_dark_mode.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_off00006144.bin
8297ab712f57ab7ffeae3855718b2b1d803784bc6ec8802ae51b1d178a11cd6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6144 4984 bytes
font_01_sfnt_off00007230.bin
903f98a270d6d91cb618ce2e369a39977a65e1b728941d3f6c6842056a04f769		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7230 10776 bytes

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