Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4e3fedfb8bb060f…

MALICIOUS

PDF

49.7 KB Created: 2020-08-06 07:36:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 709a644a59ec1e7b8dab1730220be84e SHA-1: a7d5d86c14e530984cb774361e638fb064cc209e SHA-256: d4e3fedfb8bb060fecd76cd9e8dc5fe2b59f82fe322fc0589cb69b05998397d0
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms this, and the PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, likely for SEO manipulation or to obscure the malicious destination. The primary malicious URL identified is https://ttraff.com/pify?keyword=autisme+infantile+pdf, which is likely used to redirect the user to a phishing or malware distribution site.

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=autisme+infantile+pdf
    • http://files.wisepathbirthing.com/uploads/1/3/1/0/131070798/dowuguvujor.pdf
    • http://jubixu.samuelbloch.fr/uploads/1/3/1/1/131164250/e14e16e48eb9c1.pdf
    • http://files.gracemotionanddance.com/uploads/1/3/1/8/131871466/zakaxuwel-xomituxinudu-tewonibazila-zulojarujobekem.pdf
    • https://cdn.shopify.com/s/files/1/0437/8053/8529/files/linux_desktop_environments.pdf
    • https://cdn.shopify.com/s/files/1/0431/1030/1847/files/cm3d2_update_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/6214/0840/files/30308650571.pdf
    • https://cdn.shopify.com/s/files/1/0432/1856/7335/files/47498549492.pdf
    • https://cdn.shopify.com/s/files/1/0440/3625/9990/files/38257126342.pdf
    • https://cdn.shopify.com/s/files/1/0435/4116/8283/files/75041128388.pdf
    • https://cdn.shopify.com/s/files/1/0431/1321/8210/files/52915678193.pdf
    • https://cdn.shopify.com/s/files/1/0429/2762/0249/files/ziwenopanefasanidagedi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/voluroj.pdf
    • https://cdn.shopify.com/s/files/1/0431/4300/4322/files/xuwuxijaduf.pdf
    • https://cdn.shopify.com/s/files/1/0428/9154/2681/files/rozisojebig.pdf
    • https://cdn.shopify.com/s/files/1/0433/3010/9593/files/rizuzukagowuzukituno.pdf
    • https://cdn.shopify.com/s/files/1/0434/4630/4920/files/latutugetomivubexik.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_off000084f0.bin
84b85607325f20b8717a1c60b46a7159e4c36feb537541527ca75b9d15841e6d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84F0 5080 bytes
font_01_sfnt_off00009629.bin
efb5015d420cc1bf61c4ef29f0af0359f3eb715e66b059d8bc9ee76dce42ef8c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9629 10516 bytes

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