Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d272540ed016e9c…

MALICIOUS

PDF

47.7 KB Created: 2020-08-10 03:40:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5302632f6fb14c889c3d465130879aa3 SHA-1: 7a60acd4a740c17ba0cc3d1608a1954325b4a850 SHA-256: 9d272540ed016e9cacaa1ef3b06bef1db94e311983545374b13682c922fbc433
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link farm designed to redirect users to malicious infrastructure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=prevencion+del+cancer+de+cuello+uterino+pdf, which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other links to Shopify-hosted PDFs, suggesting a lure to a malicious site. No scripts were extracted from this sample.

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=prevencion+del+cancer+de+cuello+uterino+pdf
    • http://files.caressasiu.com/uploads/1/3/0/9/130969562/zedabijofazukob-kawopajelipa-mesib.pdf
    • http://files.alqudspub.net/uploads/1/3/0/7/130739415/e2a98.pdf
    • http://files.wallingford-gardening-club.com/uploads/1/3/0/7/130775992/482109.pdf
    • http://tepexon.makeabrewsue.com/uploads/1/3/1/6/131636725/9731545.pdf
    • https://cdn.shopify.com/s/files/1/0438/5567/5552/files/2082590043.pdf
    • https://cdn.shopify.com/s/files/1/0435/4126/6587/files/bowevekukupafiferavudod.pdf
    • https://cdn.shopify.com/s/files/1/0429/9279/5801/files/vifatuja.pdf
    • https://cdn.shopify.com/s/files/1/0441/3951/1960/files/43137119182.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83300066175.pdf
    • https://cdn.shopify.com/s/files/1/0433/1628/1512/files/truestormsfo4-_nukaworld-_fh-_compat._esp.pdf
    • https://cdn.shopify.com/s/files/1/0431/6433/6290/files/bimedid.pdf
    • https://cdn.shopify.com/s/files/1/0432/9422/8630/files/nibagijosejijoz.pdf
    • https://cdn.shopify.com/s/files/1/0428/9855/5043/files/ruliwuxikikelu.pdf
    • https://cdn.shopify.com/s/files/1/0435/4922/9220/files/73887551170.pdf
    • https://cdn.shopify.com/s/files/1/0431/8186/7176/files/gomunumurubatulaxubotit.pdf
    • https://cdn.shopify.com/s/files/1/0439/6512/0670/files/mowumopanatosebogako.pdf
    • https://cdn.shopify.com/s/files/1/0430/6278/8245/files/miforojuwuguviv.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_off00007c6b.bin
964d00bb40f30113d362a4fcb2cee92f51af4c84079253be17c93ca5a20a163b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C6B 5032 bytes
font_01_sfnt_off00008da5.bin
073dd3482827c0abf0fbb045bd4b3214e35ade73b983e98945b2885208bf3bf6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DA5 11040 bytes

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