Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e84e7d36bc2498c…

MALICIOUS

PDF

51.6 KB Created: 2020-08-02 07:29:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56dd7bfaac36e911c5379ff15b395743 SHA-1: 39336f1d00d6e05a6c1fcdcca477776ba8f5869f SHA-256: 1e84e7d36bc2498c17aaea9934224c7c5e344b47c90be2c8147720fcf124fd8f
120 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to lure users into clicking on what appears to be a textbook download. The primary link, 'https://ttraff.com/pify?keyword=principles+of+macroeconomics+7th+edition+pdf', redirects to malicious infrastructure, indicating a phishing or malware distribution attempt. The file's structure and embedded links strongly suggest a social engineering tactic to compromise the user.

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=principles+of+macroeconomics+7th+edition+pdf
    • http://files.akalasjewelry.com/uploads/1/3/2/3/132303238/17b9619.pdf
    • http://files.peacecitysoaps.com/uploads/1/3/1/4/131453288/5724583326bb59c.pdf
    • http://files.faithandthought.org/uploads/1/3/0/7/130739328/mizerutizubex-kimobo-xegogepevosoba-wokawutarudosu.pdf
    • http://files.dedhamschoolofmusic.org/uploads/1/3/2/3/132303092/zolevinezenor-wuzuduluj-wepolarip.pdf
    • https://cdn.shopify.com/s/files/1/0433/1828/0357/files/28317329054.pdf
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/zozuxabanofezupoxat.pdf
    • https://cdn.shopify.com/s/files/1/0438/5341/4565/files/kedawolafulag.pdf
    • https://cdn.shopify.com/s/files/1/0436/3960/3360/files/valusilezajefudif.pdf
    • https://cdn.shopify.com/s/files/1/0430/3765/5191/files/42098870256.pdf
    • https://cdn.shopify.com/s/files/1/0435/5381/6728/files/77746744936.pdf
    • https://cdn.shopify.com/s/files/1/0439/4788/4699/files/bakadebowulegekuxefabe.pdf
    • https://cdn.shopify.com/s/files/1/0431/5293/3018/files/pexivavikavolefemu.pdf
    • https://cdn.shopify.com/s/files/1/0435/3359/8880/files/kapelotozufenuludizez.pdf
    • https://cdn.shopify.com/s/files/1/0431/7331/4715/files/nodabejaxujujetazazexatil.pdf
    • https://cdn.shopify.com/s/files/1/0432/5956/0094/files/natal_c3_ad_sanch_c3_a9z.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_off000089c3.bin
0ccf6c0609001da6e85d1cb1a3cd2baa1fe3fa2a99cf3480496118806dc36650		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89C3 5476 bytes
font_01_sfnt_off00009c3d.bin
83da9d12f2fa78ca3a5b7a8831dde23a0182bd7ea3da425b60fd63e605ba0875		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C3D 10924 bytes

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