Malicious PDF — malware analysis report

Static analysis result for SHA-256 c39d2a40c4c32f47…

MALICIOUS

PDF

47.3 KB Created: 2020-07-23 12:11:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ddc39b3d8ad2887324cedd8eeef270a SHA-1: 67bb0fc84295f2ad4b464f0f3d5c18e770777e1d SHA-256: c39d2a40c4c32f47fea4e6fee611ac53dec76136d70d89f9f8b1dbc5b4dc30bd
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 appear as pheasant hunting guides, but the primary link redirects to a known malicious infrastructure at 'ttraff.ru'. This suggests a phishing or scam campaign using SEO poisoning tactics to lure victims. The document body is heavily obfuscated, but the presence of the malicious redirector and the link farm heuristic strongly indicate malicious intent.

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/pify?keyword=pheasant+hunting+guides+near+me
    • http://files.azwetaskiwinstorage.com/uploads/1/3/1/4/131453384/e80d22eeb54b2f.pdf
    • http://files.majestytheseries.com/uploads/1/3/1/4/131405976/2047161.pdf
    • http://files.jasonkinneyband.com/uploads/1/3/0/8/130813526/6cb29b569d549a.pdf
    • http://files.alissweettreats.com/uploads/1/3/0/8/130873945/sukexabopobewari.pdf
    • http://files.sallylutz.com/uploads/1/3/1/1/131163617/jukufeseme.pdf
    • http://files.majestytheseries.com/uploa
    • https://cdn.shopify.com/s/files/1/0432/4281/5643/files/51191469754.pdf
    • https://cdn.shopify.com/s/files/1/0431/8022/8759/files/wujikuvisajowudomox.pdf
    • https://cdn.shopify.com/s/files/1/0433/9249/9877/files/47783299797.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mujunevuduw.pdf
    • https://cdn.shopify.com/s/files/1/0431/8891/2290/files/novuwovupafevugufi.pdf
    • https://cdn.shopify.com/s/files/1/0432/5959/2859/files/muxoxu.pdf
    • https://cdn.shopify.com/s/files/1/0432/1335/7214/files/sifedijexijolaxapewudizum.pdf
    • https://cdn.shopify.com/s/files/1/0430/2202/4867/files/texewaliwikupitelolitub.pdf
    • https://cdn.shopify.com/s/files/1/0436/1479/7981/files/xawufowuju.pdf
    • https://cdn.shopify.com/s/files/1/0433/0654/9406/files/31706858092.pdf
    • https://cdn.shopify.com/s/files/1/0430/7720/6165/files/49438515164.pdf
    • https://cdn.shopify.com/s/files/1/0431/3913/7697/files/rapakazaxazivogimifajorud.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_off00007a22.bin
88cbd5d16d5cb178a96f963a5092a2ba7097fbfb6f668c42d701adc1795e4cc5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A22 4980 bytes
font_01_sfnt_off00008ad1.bin
477d7e56ef8255f33f0c487052cdd36aeb42d8080a25745e69d884d480004d2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AD1 10832 bytes

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