Malicious PDF — malware analysis report

Static analysis result for SHA-256 c824c1a50d530733…

MALICIOUS

PDF

40.2 KB Created: 2020-07-23 00:53:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7bbacf893df862731fad2dbdda15bfd4 SHA-1: 46d4c9f45a309c3cc84ec2decfdf6b5efd54b559 SHA-256: c824c1a50d53073397475df89f52923c32ff3605213a0452903136c2793d72f8
128 Risk Score

Malware Insights

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

The PDF contains a lure for 'Disney moana coloring pages pdf' and a call-to-action button. It embeds multiple links, with one pointing to a known malicious redirector at 'ttraff.ru'. The PDF also hosts a link farm on Shopify, suggesting an attempt to game search engines for distribution. The primary malicious link is the redirector, likely leading to further malicious content or exploits.

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.ru/wb?keyword=disney%20moana%20coloring%20pages%20pdf
    • http://files.mediagearpro.com/uploads/1/3/0/7/130739393/zogawosa_jutuwi.pdf
    • http://files.cmleukemia.com/uploads/1/3/1/3/131381910/zajaxon.pdf
    • http://files.thomasjamesolearydirector.com/uploads/1/3/1/4/131438211/lexanujiza.pdf
    • http://files.lifebeforetheruins.com/uploads/1/3/2/6/132681901/d14c60d7937dbf.pdf
    • http://files.cmleukemia.com/uploads/1/3/1/3/1
    • https://cdn.shopify.com/s/files/1/0428/7466/7164/files/24174251959.pdf
    • https://cdn.shopify.com/s/files/1/0432/3147/7922/files/fuvuxozojevagiruvu.pdf
    • https://cdn.shopify.com/s/files/1/0429/0910/6335/files/40579151139.pdf
    • https://cdn.shopify.com/s/files/1/0430/1750/2869/files/59943447068.pdf
    • https://cdn.shopify.com/s/files/1/0429/8578/3455/files/zijazogaduxuxirovalad.pdf
    • https://radegatazu.files.wordpress.com/2020/06/numemew.pdf
    • https://bulodorere242801815.files.wordpress.com/2020/07/taburofe.pdf
    • https://zabexom.files.wordpress.com/2020/06/buzinezupumel.pdf
    • https://kojumisukure.files.wordpress.com/2020/07/tobod.pdf
    • https://cdn.shopify.com/s/files/1/0428/2767/7852/files/wedobijugado.pdf
    • https://cdn.shopify.com/s/files/1/0428/5195/8947/files/doziginawuzazanemoguxo.pdf
    • https://cdn.shopify.com/s/files/1/0431/0610/7552/files/59810297004.pdf
    • https://cdn.shopify.com/s/files/1/0433/9033/7174/files/36367100778.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/libutufisolefod.pdf
    • https://cdn.shopify.com/s/files/1/0429/9227/1519/files/mujepulebu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5827/4205/files/sovenubofawal.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12247178291.pdf
    • https://cdn.shopify.com/s/files/1/0430/5554/6517/files/vopaxopoguzadexi.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_off00005f50.bin
b37f84d9db933a9143f9bd2d84ab3ce1fc566758301b8aacac82730c579d1bf7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F50 5284 bytes
font_01_sfnt_off0000712c.bin
bbcc7f9bf61c42d24c53d27575779c1370ce4f7245e7731e6adfe113cff9fd3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x712C 9944 bytes

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