Malicious PDF — malware analysis report

Static analysis result for SHA-256 46f819a4d0695e16…

MALICIOUS

PDF

61.0 KB Created: 2020-08-30 09:02:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 049270d16dd7cdb5c5c9968b9a8d151a SHA-1: 117289b641790179e7df9bd7832d20167b1d07a4 SHA-256: 46f819a4d0695e168e2aa27451c6cd478c4c05a9dc245985583f1586fa7c59f7
128 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is designed to lead users to further malicious content. The document also functions as a link farm, embedding numerous external links, many hosted on Shopify, with the primary URL being a redirector. The presence of a visual download button lure reinforces the malicious intent.

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/wix?keyword=how+to+improve+pubg+performance
    • https://cdn.shopify.com/s/files/1/0434/6960/2978/files/wurigabi.pdf
    • https://cdn.shopify.com/s/files/1/0433/8545/4757/files/setirezuzena.pdf
    • https://cdn.shopify.com/s/files/1/0432/1191/5421/files/sutevevapofiw.pdf
    • https://cdn.shopify.com/s/files/1/0436/0513/1421/files/julefavesofuremazitebo.pdf
    • https://cdn.shopify.com/s/files/1/0432/4756/7010/files/cracking_the_money_code_trading_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/0398/5570/files/basijigi.pdf
    • https://cdn.shopify.com/s/files/1/0430/6495/0946/files/12313233187.pdf
    • https://cdn.shopify.com/s/files/1/0430/6301/7629/files/fujometobuwa.pdf
    • https://cdn.shopify.com/s/files/1/0430/7861/5189/files/miligibagil.pdf
    • https://static.usrfiles.com/ugd/b8c837_84f8ae46630a4b688afbf3f941bb323a.pdf
    • https://static.usrfiles.com/ugd/b8c837_f1a4742eb5d045ea850a6c93b6a45d7b.pdf
    • https://cdn.shopify.com/s/files/1/0430/3945/7431/files/44095661602.pdf
    • https://cdn.shopify.com/s/files/1/0427/4028/5607/files/91614382291.pdf
    • https://cdn.shopify.com/s/files/1/0429/1824/8601/files/brachiaria_brizantha_mg4.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_off0000b16f.bin
478e30c593478ecb63aa492513d6199c4b0bced54c072340c03a916b3325bd66
pdf-font-stream PDF embedded font (sfnt) at offset 0xB16F 5380 bytes
font_01_sfnt_off0000c3bd.bin
7d47d11b5ffc8e27e4e1a73bfd85d1a2e78732fe097608d50b69f6c35ea2d985
pdf-font-stream PDF embedded font (sfnt) at offset 0xC3BD 10408 bytes