Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ae2b7c254a8bd51…

MALICIOUS

PDF

42.3 KB Created: 2020-09-19 23:20:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 04a123dfeaded4ee373828c13224e49f SHA-1: 4cafdb0ec2c343f1ca880fc8ccbc990b1807da57 SHA-256: 2ae2b7c254a8bd5129e4afce12deabf3fa969250bafbf16da0e49ce3bc62fda6
128 Risk Score

Malware Insights

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

The PDF contains a clear lure for a 'Pokemon go mod apk game download' and embeds a link to a known malicious redirector. The document also features a large number of links to external PDFs hosted on Shopify, likely as part of an SEO spam campaign to improve search engine ranking for the malicious lure. The presence of a visual download button further supports the social engineering aspect of this attack.

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.link/wix?keyword=pokemon+go+mod+apk+game+download
    • http://files.phoenixvillexc.com/uploads/1/3/0/8/130813762/7835017.pdf
    • http://files.newhopemyanmar.org/uploads/1/3/1/4/131437515/9192500.pdf
    • http://puvolo.ivanyiuphoto.com/uploads/1/3/0/7/130775451/2696032.pdf
    • https://cdn.shopify.com/s/files/1/0448/3717/5456/files/liver_abscess_treatment_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0436/0873/5907/files/20254696646.pdf
    • https://cdn.shopify.com/s/files/1/0431/3799/0805/files/55037035143.pdf
    • https://cdn.shopify.com/s/files/1/0439/4388/7016/files/5724307967.pdf
    • https://cdn.shopify.com/s/files/1/0437/8905/8209/files/87160772236.pdf
    • https://e7b6979e-c1f9-40cf-a2a0-5fd2d4dcee02.filesusr.com/ugd/5cd33b_7b15d1ea6c7e4884b9e7b393106c3732.pdf?index=true
    • https://c4298054-a7cb-4798-ac0e-cacde2184d33.filesusr.com/ugd/bc0b97_42abee5a807d4663ac1f0f7a582fee8f.pdf?index=true
    • https://00d586ce-ae76-4cbc-9b7c-938665bb1d72.filesusr.com/ugd/03f576_66cb5fa892dc4476b1e229c4c6794924.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0459/9378/7559/files/spring_awakening_book.pdf
    • https://cdn.shopify.com/s/files/1/0427/9438/5575/files/82013157849.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_off000067b7.bin
2cacb3d63cfca42abfd2badb411a708cdae7f6eac960bf8a9c32f4dfcd065de8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67B7 5164 bytes
font_01_sfnt_off0000794f.bin
d17c1c6933645777b69ed8b9b2950dcd24adeae64fd70eb029c2dcbe19079e3f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x794F 10328 bytes

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