Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f13361fb0a00e2e…

MALICIOUS

PDF

47.5 KB Created: 2020-09-11 17:50:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 02210307df2108b75ebf93cfcd7f4f63 SHA-1: f3fc62ede6304965eddecdfef63afa7bbf4bf732 SHA-256: 4f13361fb0a00e2e0c4c212bb2d349ddd5339ed0d379f882e86f484af4910de0
128 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/wix?keyword=encounter+shankar+full+movie++720p'. This URL is presented within the document body, disguised as a movie download lure. The file also contains a large number of external PDF links, many of which point to 'static.usrfiles.com', suggesting a link farm or SEO poisoning attempt to drive traffic to malicious sites. The presence of a visual download button further supports the lure. No scripts were extracted from this sample.

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.club/wix?keyword=encounter+shankar+full+movie++720p
    • http://files.sweetchildofminephoto.com/uploads/1/3/0/7/130776046/bepupugizowo.pdf
    • https://static.usrfiles.com/ugd/ce4b7c_4ec02f3c286444db95c1bda517b91dd5.pdf
    • https://static.usrfiles.com/ugd/af0aa9_fa3ea92ec89547f298cfde64e887709e.pdf
    • https://static.usrfiles.com/ugd/7ea8bb_38d00d16430e4d8ca93e14c61a7805ba.pdf
    • https://static.usrfiles.com/ugd/6e3131_191bdecb0bc44b7ab4dd6a268dd46e12.pdf
    • https://cdn.shopify.com/s/files/1/0437/0654/8377/files/84676586646.pdf
    • https://cdn.shopify.com/s/files/1/0435/9028/7517/files/lalogomawubutegabake.pdf
    • https://cdn.shopify.com/s/files/1/0434/9178/6918/files/transformare_metri_cubi_in_litru.pdf
    • https://cdn.shopify.com/s/files/1/0428/7817/3351/files/creative_timeline_template.pdf
    • https://cdn.shopify.com/s/files/1/0434/1491/3191/files/42542158781.pdf
    • https://static.usrfiles.com/ugd/405339_e1ce3e38e105465eabd83dfef8683559.pdf
    • https://static.usrfiles.com/ugd/e49726_ace88020c9fc49f7ada1bfd75324b7d3.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004689.bin
56001247121ddac9cc2f8f0c508e1f96732b08a1f69e8854207d3211eee7c362		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4689 5692 bytes
font_01_sfnt_off000059ce.bin
699a8b55e50cd80192193eb3832e3199d82edd581ff2a4f3bd3563cc6d5fef53		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59CE 20968 bytes
font_02_sfnt_off000079fe.bin
0069fcdfb0d15a278d6261ba79e3a8ab1431e421449c0929a49ce00e9e70677c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79FE 2276 bytes
font_03_sfnt_off000083ca.bin
dd882511ecedc1c396b31763362541d0bff3ad410af60ccab1d5d5252d5fa7b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83CA 9968 bytes
font_04_sfnt_off0000a5e3.bin
7be423a9975dd74696fa28cd46b52a55c3739f4a885228df3b07ea410fd2731b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA5E3 2056 bytes

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