Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c45581f88e7e2a2…

MALICIOUS

PDF

43.3 KB Created: 2020-08-29 17:00:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96a5248cf82d54bdead4e73bb95a02a3 SHA-1: 4db4086952f3578a26d0dc34e3789caf60e74c2d SHA-256: 4c45581f88e7e2a2457dd8f6955de16bc9dee4f5393c1daf7b1a06ef7ec93946
120 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link to 'https://ttraff.ru/wix?keyword=foxconn+p4m800p7mb+manual', which is a critical finding. Additionally, the document exhibits characteristics of a link farm, embedding numerous external PDF links, many of which point to shopify.com. The presence of these links suggests an attempt to lure users to malicious or deceptive content, likely for phishing or malware distribution.

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.ru/wix?keyword=foxconn+p4m800p7mb+manual
    • https://cdn.shopify.com/s/files/1/0433/7028/3166/files/51607133673.pdf
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/90496791754.pdf
    • https://cdn.shopify.com/s/files/1/0435/9671/0050/files/sigirudalup.pdf
    • https://cdn.shopify.com/s/files/1/0430/8667/6135/files/calculus_early_transcendentals_10th_edition_answers.pdf
    • https://cdn.shopify.com/s/files/1/0437/0815/4008/files/901718265.pdf
    • https://static.usrfiles.com/ugd/b8c837_9ebb990a82c140de998cf1f85cacf811.pdf
    • https://static.usrfiles.com/ugd/b8c837_669c4aaa914c461bbb715d840308921f.pdf
    • https://static.usrfiles.com/ugd/b8c837_2d89d6439cac4a22ace7d31827e05513.pdf
    • https://static.usrfiles.com/ugd/b8c837_071dbba00ab84b9e86744c2f01ade6c0.pdf
    • https://cdn.shopify.com/s/files/1/0430/7494/5184/files/rekozukijajoteregajozuso.pdf
    • https://cdn.shopify.com/s/files/1/0440/2036/7510/files/konirejadunetogobikapox.pdf
    • https://cdn.shopify.com/s/files/1/0429/9862/8501/files/50565085681.pdf
    • https://cdn.shopify.com/s/files/1/0428/3963/8179/files/6049402320.pdf
    • https://cdn.shopify.com/s/files/1/0432/3019/9966/files/past_simple_vs_past_continuous_exercises_upper_intermediate.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_off0000620d.bin
da8f893218731a659427b6048d0af42c51a92c04c80e3354f8b1209895a5de6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x620D 5472 bytes
font_01_sfnt_off000074a7.bin
b0cebc86bd61d101182427a9db2c0f5447f73d82f4253df9aeea48988a5c98cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74A7 14192 bytes

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