Malicious PDF — malware analysis report

Static analysis result for SHA-256 9776d49787db2c73…

MALICIOUS

PDF

40.2 KB Created: 2020-08-06 02:46:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 64115876ce8c12cb925981679d69ad4e SHA-1: 18336c863f7b9b5f15dc36e28945bfd96c0cc364 SHA-256: 9776d49787db2c73b7ba2dfe5ab1eae0e073442a352d86d623c769e02c623b5a
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF document contains multiple embedded links, with a primary link to a known malicious redirector at `https://ttraff.ru/wb?keyword=search%20text%20in%20pdf%20on%20iphone`. The document's content and structure suggest it is part of a link farm designed to drive traffic to malicious sites. The presence of numerous Shopify-hosted PDF links further supports this, indicating a campaign to generate SEO traffic for malicious purposes.

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.ru/wb?keyword=search%20text%20in%20pdf%20on%20iphone
    • http://files.makelifehd.org/uploads/1/3/1/0/131070597/wiwezilenu_gezer_vuzexedulax_xafalid.pdf
    • http://files.votesphere.com/uploads/1/3/0/7/130740490/7013813.pdf
    • http://zegugudu.copybyvan.com/uploads/1/3/0/9/130969744/dodovafowukusog.pdf
    • https://cdn.shopify.com/s/files/1/0439/1193/8216/files/23434144942.pdf
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/89630018223.pdf
    • https://cdn.shopify.com/s/files/1/0435/7623/0046/files/kefuribiroranivinuti.pdf
    • https://cdn.shopify.com/s/files/1/0431/7062/7735/files/42874735290.pdf
    • https://cdn.shopify.com/s/files/1/0428/4288/2215/files/gekusom.pdf
    • https://cdn.shopify.com/s/files/1/0429/6785/9359/files/50767512517.pdf
    • https://cdn.shopify.com/s/files/1/0437/1139/8041/files/91887342088.pdf
    • https://cdn.shopify.com/s/files/1/0428/9373/8143/files/jerokal.pdf
    • https://cdn.shopify.com/s/files/1/0433/1870/6341/files/27380885129.pdf
    • https://cdn.shopify.com/s/files/1/0431/9277/8916/files/vekijoluxunajadiziber.pdf
    • https://cdn.shopify.com/s/files/1/0433/0982/6213/files/6466881430.pdf
    • https://cdn.shopify.com/s/files/1/0428/7902/5318/files/amazing_grace_my_chains_are_gone_key_of_d.pdf
    • https://cdn.shopify.com/s/files/1/0430/7048/8730/files/27012443083.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_off00005fad.bin
71d19969c36f4d67f18adf7eed910a721441a3ddbc605e0bc8a7b2ccc31ce448		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FAD 5204 bytes
font_01_sfnt_off00007161.bin
4d194288e7c60229a43d82445b86e129447a631e5a2b6e571d3c1081f7e9f69b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7161 10184 bytes

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