Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6a4c8831615e159…

MALICIOUS

PDF

40.7 KB Created: 2020-08-30 01:24:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 897039a9f9cc86bbd5b645d70cfde768 SHA-1: a43a700ebc1bb7ab8948447252e007a2cb2a605c SHA-256: e6a4c8831615e159b4939f40804fea94a20831cfd5ce5b3b36b0a3e066e8d058
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious domain, disguised as a movie download. The PDF also contains a large number of links to other PDFs hosted on Shopify, likely for SEO manipulation to improve search engine ranking for the malicious link. The document body contains garbled text but includes the malicious URL.

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/wix?keyword=safe+haven+full+movie+in+hindi+dubbe
    • https://cdn.shopify.com/s/files/1/0430/3349/3655/files/niniwubujuf.pdf
    • https://cdn.shopify.com/s/files/1/0430/2408/9242/files/28589009088.pdf
    • https://cdn.shopify.com/s/files/1/0429/7365/9290/files/61300950207.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nakoximowukod.pdf
    • https://cdn.shopify.com/s/files/1/0431/0371/5489/files/zamezofojitafaxeparexena.pdf
    • https://static.usrfiles.com/ugd/b8c837_8049b98673904312b7b2d5c28064677c.pdf
    • https://static.usrfiles.com/ugd/95089d_68a4b8d04caa459a9962aa3e5df3ceb2.pdf
    • https://static.usrfiles.com/ugd/b8c837_9dd735709d854609871dd0341f59683b.pdf
    • https://static.usrfiles.com/ugd/b8c837_1c000e4c12a145e98246d6fbf9937f2a.pdf
    • https://cdn.shopify.com/s/files/1/0434/1553/5774/files/aambala_hd_movie_in_tamilrockers.pdf
    • https://cdn.shopify.com/s/files/1/0440/3717/7494/files/buwavinu.pdf
    • https://cdn.shopify.com/s/files/1/0429/3951/5039/files/82294842681.pdf
    • https://static.usrfiles.com/ugd/b8c837_993970a48f704fc4939cf0e755477601.pdf
    • https://static.usrfiles.com/ugd/b8c837_0509c4930e4f42fbb07dcd56a78f5ac6.pdf
    • https://static.usrfiles.com/ugd/b8c837_47b75c2ec8b442cbbc60aa9968ffe8a5.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_off000061fb.bin
39d09d92aff040a25c7dccf234f241690f9d18e81bdb58494865ce1abfd1700e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61FB 5176 bytes
font_01_sfnt_off00007374.bin
c5845fbe6464735dcb5d621c36b296ae1f465487532fc63c24a35df213a5e33e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7374 10144 bytes

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