Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5111398afc693ab…

MALICIOUS

PDF

43.5 KB Created: 2020-08-02 02:48:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6cf9ca4a700c5314fbb865dcf174cc0f SHA-1: aa9caadbec27a42a15e4a92a3f9e6e2cea7d2aeb SHA-256: d5111398afc693ab272167de5a232f07509f6ee77860834befeb52e21de64bad
120 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link that is disguised as a torrent download for "Game of Thrones S05E10". This link leads to a URL hosted on ttraff.com, which is known to redirect to malicious content. The file also contains a large number of embedded links, many of which point to Shopify domains hosting other PDF files, suggesting a link farm or content distribution network for malicious payloads. The primary intent appears to be luring users to click the malicious link.

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=torrent+game+of+thrones+s05e10
    • http://files.ivmana.org/uploads/1/3/1/3/131381901/toxure.pdf
    • http://files.steinhausbernese.com/uploads/1/3/1/4/131437984/tovefimusaragoxasim.pdf
    • http://files.chicagoblazerugby.com/uploads/1/3/0/7/130776542/141812b3.pdf
    • http://files.theyogastudiosherman.com/uploads/1/3/1/0/131070841/lofuvitamevaj.pdf
    • https://cdn.shopify.com/s/files/1/0430/1540/5725/files/nurowox.pdf
    • https://cdn.shopify.com/s/files/1/0431/9592/4637/files/tumojofojirijaxiribam.pdf
    • https://cdn.shopify.com/s/files/1/0437/9515/3058/files/66790458776.pdf
    • https://cdn.shopify.com/s/files/1/0430/1615/9381/files/maxisutu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3724/5086/files/48684679127.pdf
    • https://cdn.shopify.com/s/files/1/0432/1030/9787/files/rasofatazorag.pdf
    • https://cdn.shopify.com/s/files/1/0429/7680/5018/files/wibebolimozidurepijifure.pdf
    • https://cdn.shopify.com/s/files/1/0436/9301/5195/files/26890101873.pdf
    • https://cdn.shopify.com/s/files/1/0428/6890/0006/files/rupitewidenetivazego.pdf
    • https://cdn.shopify.com/s/files/1/0430/8166/2628/files/71680977654.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_off00006534.bin
6f6bb1a771d01e411ea27942ef70a715a97398840b16395424d11294019049ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6534 5416 bytes
font_01_sfnt_off00007781.bin
bda1152c76678966e65df59df6cc46f7c1bd2efc0c007ec1e2de48708982e6b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7781 13172 bytes

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