Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3b62e78f1748c07…

MALICIOUS

PDF

38.5 KB Created: 2020-08-18 13:15:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45acdb5a0964a1e34dc28c587a83e635 SHA-1: 193c43f23891038496b0bdf45178491af83c8af9 SHA-256: b3b62e78f1748c07b4f8814f78bedb68afe91a3c335b35e6d072ed328955d41f
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically `https://ttraff.com/pify?keyword=wallpaper++in+hd+for+mobile`. This indicates a phishing or scam attempt, likely to deliver further malware or collect user information. The document body, though heavily corrupted, contains references to the malicious URL and other PDF links, reinforcing the lure.

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=wallpaper++in+hd+for+mobile
    • http://files.southsidebrewing.net/uploads/1/3/0/7/130739150/xiwuxovegaluva.pdf
    • http://ruguv.littlespiritbeads.com/uploads/1/3/1/1/131164250/gufaxo-kirenevuraf.pdf
    • https://cdn.shopify.com/s/files/1/0438/6521/1035/files/41621390726.pdf
    • https://cdn.shopify.com/s/files/1/0446/6363/6131/files/88199559195.pdf
    • https://cdn.shopify.com/s/files/1/0434/1805/8901/files/ximerajo.pdf
    • https://cdn.shopify.com/s/files/1/0436/6021/4425/files/bowflex_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/jifebukekixovatinafasudi.pdf
    • https://cdn.shopify.com/s/files/1/0430/0413/3525/files/61050351610.pdf
    • https://cdn.shopify.com/s/files/1/0443/9366/0582/files/hong_kong_street_map.pdf
    • https://cdn.shopify.com/s/files/1/0434/3182/1473/files/17417113065.pdf
    • https://cdn.shopify.com/s/files/1/0431/9815/2866/files/apprendre_l_espagnol_assimil.pdf
    • https://cdn.shopify.com/s/files/1/0429/8424/3351/files/65170747892.pdf
    • https://cdn.shopify.com/s/files/1/0436/0250/9987/files/business_model_generation_online.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_off000059b8.bin
67eddd4316c38ca44b29d503549c682f64f4d037bdbebe1909a2d744cb255cf3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59B8 5256 bytes
font_01_sfnt_off00006b6d.bin
c45144d6417eb16c5457123cc54ba0b5b1b6e430c613e82b462891f35eeabcb3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B6D 10024 bytes

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