Malicious PDF — malware analysis report

Static analysis result for SHA-256 c07df5e902e9c140…

MALICIOUS

PDF

39.5 KB Created: 2020-08-05 23:57:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5edf7c3cc2a67dddba819063afa10dbb SHA-1: b6905a0fef142ae4c7d4c610368689f7e1006346 SHA-256: c07df5e902e9c140f6f0c5726a3525ab1ead719e054f1841ca18f832c41df467
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=cd4504be+datasheet+pdf'. Additionally, it exhibits a PDF link farm pattern, embedding numerous external PDF links, many hosted on Shopify. The document body, though heavily obfuscated, contains references to 'cd4504be datasheet pdf' and the redirector URL, suggesting a lure to external malicious content.

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=cd4504be+datasheet+pdf
    • http://files.themauricejonesagency.com/uploads/1/3/0/7/130739614/14dce8503d16ef9.pdf
    • http://files.mikericesports.com/uploads/1/3/1/4/131454024/6665257.pdf
    • http://files.designsbycaralouise.com/uploads/1/3/0/7/130738837/narezarasa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/44484222312.pdf
    • https://cdn.shopify.com/s/files/1/0433/3849/8206/files/95539718019.pdf
    • https://cdn.shopify.com/s/files/1/0432/0926/1220/files/plot_normal_distribution_in_r.pdf
    • https://cdn.shopify.com/s/files/1/0430/4004/7253/files/trading_in_the_zone_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/3541/0077/files/bokesi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1095/7210/files/blog_adryanlist_org.pdf
    • https://cdn.shopify.com/s/files/1/0440/7646/6328/files/ruxanadud.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wajumibuxup.pdf
    • https://cdn.shopify.com/s/files/1/0429/2558/8639/files/naruwalemavunebaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/4262/6984/files/80117793416.pdf
    • https://cdn.shopify.com/s/files/1/0430/4653/5322/files/59452284832.pdf
    • https://cdn.shopify.com/s/files/1/0427/6997/3415/files/19403649887.pdf
    • https://cdn.shopify.com/s/files/1/0437/3735/0293/files/55707101487.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_off00005b50.bin
624a81f6b411234437f3cd8f19702a976fb8fb3af2a561398d681fc3d6cf0d81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B50 5400 bytes
font_01_sfnt_off00006dac.bin
8f957b8a3f79886d7ad73eaf1dbb6b90e5bc2e97337a72fb8c1ceef0048eb745		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DAC 10540 bytes

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