Malicious PDF — malware analysis report

Static analysis result for SHA-256 27815bb260533096…

MALICIOUS

PDF

42.7 KB Created: 2020-08-28 09:46:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9259ab96a0394ae481978da4be0f3681 SHA-1: bf4ed4adb2abca51c2d99a9c3e287ed5010eb565 SHA-256: 27815bb260533096dd6289498cc9fea77488197e7ec57903f525721c44a2cbb5
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is 'https://ttraff.com/pify?keyword=colin+mcrae%253A+dirt+2', which is likely used to lure victims. The document body, though heavily obfuscated, contains references to the game 'Colin McRae: DiRT 2' and the tool 'wkhtmltopdf', suggesting a deceptive lure. The presence of numerous Shopify-hosted PDF links, while many are benign, contributes to a link farm strategy.

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=colin+mcrae%253A+dirt+2
    • http://files.katewestcott.com/uploads/1/3/0/9/130970003/fubepililovop_zutunup_jimon.pdf
    • http://files.graffitiwgratitude.com/uploads/1/3/0/7/130738814/808e7b1556b9ad.pdf
    • http://xozof.paydaylendinginvestigation.com/uploads/1/3/1/4/131453870/nusaf-gijuvarulow-jimexi.pdf
    • http://gufodu.reikiwithlouise.com/uploads/1/3/1/4/131406062/sosab.pdf
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/vamokowejebijokedesubetug.pdf
    • https://cdn.shopify.com/s/files/1/0431/9153/3725/files/xobojo.pdf
    • https://cdn.shopify.com/s/files/1/0434/0350/9914/files/rti_letter_format_in_marathi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9780/1375/files/58823559613.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/91300886864.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/faramerujinusopuko.pdf
    • https://cdn.shopify.com/s/files/1/0428/4622/4551/files/kixiv.pdf
    • https://cdn.shopify.com/s/files/1/0431/6925/1492/files/pazogibezadafulagutedafe.pdf
    • https://cdn.shopify.com/s/files/1/0432/2626/7806/files/58701790956.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e07.bin
47b2e64fe32665db9a3714c124623dab8f8aafb9386d979bb28f715704fc4115		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E07 4900 bytes
font_01_sfnt_off00006e8b.bin
449a725efb877cd9d70eaffbe7a10dc70a9fd658b524723d4d2436dfb236e097		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E8B 9920 bytes
font_02_sfnt_off00009077.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9077 4324 bytes

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