Malicious PDF — malware analysis report

Static analysis result for SHA-256 facde96df8325ab4…

MALICIOUS

PDF

42.1 KB Created: 2020-08-14 23:15:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9b961a2e805b133398464e95556213e8 SHA-1: 4dd2c31a1431638c412237f23b10ca3801ff3fad SHA-256: facde96df8325ab45e263ae4f3a2a15c882be2591f7c9765c6693b009f5e05e3
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to ttraff.com, which is designed to lure users into downloading potentially harmful content by disguising it as a driver update. The document body also contains numerous links, many hosted on cdn.shopify.com, which are part of a link farm, further indicating a malicious SEO-driven distribution tactic. The presence of a download button lure reinforces the deceptive nature of the document.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=logitech+bcc950+driver++windows+7
    • http://files.rompenni.org/uploads/1/3/1/3/131380895/gupudobivajuse-jinekajo.pdf
    • http://files.notjustmakebelieveparties.com/uploads/1/3/1/3/131382630/nisewijuvegunivo.pdf
    • https://cdn.shopify.com/s/files/1/0436/1335/6194/files/audyt_bezpieczestwa_informatycznego.pdf
    • https://cdn.shopify.com/s/files/1/0435/1534/7103/files/novobabumakozoxosome.pdf
    • https://cdn.shopify.com/s/files/1/0431/8576/6561/files/how_to_get_cromium_branch.pdf
    • https://cdn.shopify.com/s/files/1/0433/9915/1768/files/lenowovexubolakano.pdf
    • https://cdn.shopify.com/s/files/1/0437/6923/3557/files/rupenopaten.pdf
    • https://cdn.shopify.com/s/files/1/0429/0409/2839/files/rubupobikanetopikuvababav.pdf
    • https://cdn.shopify.com/s/files/1/0433/4980/3162/files/30366057992.pdf
    • https://cdn.shopify.com/s/files/1/0430/3385/4103/files/26851632832.pdf
    • https://cdn.shopify.com/s/files/1/0432/1135/8372/files/how_to_setup_a_discord_server.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_off00006412.bin
c57868fee95ea3f258a0117b1c7242618959d12ac1a6408c37f1b2f3bdcd4314		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6412 5692 bytes
font_01_sfnt_off00007793.bin
ea8dddd440540e252f22e87e83897a23a62f7bac9060b767bf07786435fa783f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7793 10632 bytes

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