Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c8ebbe1a51e2f36…

MALICIOUS

PDF

45.3 KB Created: 2020-08-23 02:54:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6bd6448bb169a2758d0073a846162cad SHA-1: e9be51946ff028f3d1e7942874c79168736cd65e SHA-256: 7c8ebbe1a51e2f36ac31710006cbf812bffa5aeff0f05975b43db94ea05f2ffb
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector URL, suggesting a phishing or scam attempt. The primary malicious URL is https://ttraff.cc/pify?keyword=tratamiento+parestesia+pdf, which likely leads to further malicious content. The document body, though heavily corrupted, contains text related to the URL, reinforcing the lure. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=tratamiento+parestesia+pdf
    • http://dubakir.sabrinaeiraphotography.com/uploads/1/3/1/3/131383483/noxegibogi.pdf
    • http://files.simonfischeronline.com/uploads/1/3/0/8/130813630/585d17.pdf
    • http://files.gabrielagamez.com/uploads/1/3/1/4/131453268/9806109.pdf
    • http://poborekor.hackenthorpelodge.org/uploads/1/3/2/3/132302936/pexawupos_lemejulabulako_zugosedexog_zapodederov.pdf
    • http://jifudi.tlc-nanbpwc.org/uploads/1/3/1/4/131437252/2df1bdd0d8de9.pdf
    • https://cdn.shopify.com/s/files/1/0440/7522/1144/files/64471917018.pdf
    • https://cdn.shopify.com/s/files/1/0465/3986/6270/files/46606992234.pdf
    • https://cdn.shopify.com/s/files/1/0440/4314/1285/files/xubusiwazilamibul.pdf
    • https://cdn.shopify.com/s/files/1/0436/1102/9667/files/xenelusupala.pdf
    • https://cdn.shopify.com/s/files/1/0431/5676/6869/files/buwisiv.pdf
    • https://cdn.shopify.com/s/files/1/0428/5438/3782/files/66295230171.pdf
    • https://cdn.shopify.com/s/files/1/0435/4031/6311/files/lijikumexav.pdf
    • https://cdn.shopify.com/s/files/1/0432/9842/2934/files/82006724275.pdf
    • https://cdn.shopify.com/s/files/1/0430/3529/5905/files/97516234689.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_off00007241.bin
0e0028b95aad04dd5781f69cf5da8fb7a5d75b48011933f19c7c0ffae6df950c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7241 5104 bytes
font_01_sfnt_off0000837e.bin
bd4f6938b87ba4ed694af6d1dc76643a72cec066ae0f2474e0f09c4be50992ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x837E 10812 bytes

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