Malicious PDF — malware analysis report

Static analysis result for SHA-256 37ecc5e97365d426…

MALICIOUS

PDF

48.5 KB Created: 2020-07-28 11:36:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5692ecb19ae5ded266104c44abf025af SHA-1: a08a7788f8e9a27ebd694d63aca93b462a30c5af SHA-256: 37ecc5e97365d426635a3e21f9d8ebd0fc06e789f3fcb50c1e59136a73224eef
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, embedding numerous external links, 30 of which are generated SEO links. One of these links, 'https://ttraff.com/pify?keyword=cimatron+e14+sp1', directs to known malicious redirector infrastructure. The document body appears to be largely obfuscated or corrupted, preventing a deeper analysis of its specific content or intent beyond the malicious link.

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=cimatron+e14+sp1
    • http://files.highsierrachemicals.com/uploads/1/3/2/6/132681294/fukojofu_sekoxiwi_pedatiwi.pdf
    • http://files.fresnonutritionsolutions.com/uploads/1/3/2/6/132683111/9806049.pdf
    • http://files.milwaukeecharteradvocates.org/uploads/1/3/1/4/131413718/4926669.pdf
    • http://files.thevictualbar.com/uploads/1/3/1/6/131637562/90d129638cf3c.pdf
    • http://files.harvestfieldbaptist.org/uploads/1/3/1/4/131437418/e80f94bbc1e63f.pdf
    • https://cdn.shopify.com/s/files/1/0437/4154/4600/files/newonujinejuxilogix.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80789229335.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3106/files/xonozanuvowonalubole.pdf
    • https://cdn.shopify.com/s/files/1/0438/3942/2626/files/88577505689.pdf
    • https://cdn.shopify.com/s/files/1/0431/7301/9808/files/pimujulogogurowujikave.pdf
    • https://cdn.shopify.com/s/files/1/0433/3328/8088/files/ramisevefora.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/23631451812.pdf
    • https://cdn.shopify.com/s/files/1/0431/8615/9767/files/60263788448.pdf
    • https://cdn.shopify.com/s/files/1/0432/7833/6166/files/tibur.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fuwemosuwizukuxitakalav.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_off0000777e.bin
7febe2f1f44dfd3c04c75e3ed248523ffc2839c36b2ffde6e48f9ddd47e38455		 pdf-font-stream PDF embedded font (sfnt) at offset 0x777E 4884 bytes
font_01_sfnt_off000087ff.bin
bb0b6cec9eadbdd4d213241d6712eda3098b92b3f1bd5cc91f8243003b0998ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87FF 14396 bytes

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