Malicious PDF — malware analysis report

Static analysis result for SHA-256 aef18f6b9580330f…

MALICIOUS

PDF

46.4 KB Created: 2020-08-07 15:17:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62360f8de395f777054e2988e68bea04 SHA-1: ef393cca88af3e6612a52df8fe0888815cd099b4 SHA-256: aef18f6b9580330fe588cdd27b3cc3a5913ef71cf5c5fdf300faa5819cb5bf66
208 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File T1059.001 PowerShell

This PDF document contains a link farm and a malicious redirector, indicating a social engineering attempt. The document lures the user with a 'Click here to download' phrase and a browser extension installation lure, likely to trick them into visiting the malicious URL. The primary malicious URL identified is https://ttraff.ru/pify?keyword=pdf+to+word+converter+free+zamzar, which redirects to other benign Shopify links, but the initial redirector is flagged as malicious.

Heuristics 6

  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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/pify?keyword=pdf+to+word+converter+free+zamzar
    • http://files.bluebonnetchapter.com/uploads/1/3/1/3/131378950/fexebuxo.pdf
    • http://files.countryintheuk.com/uploads/1/3/1/3/131398461/a9eab4ddcb4fb.pdf
    • http://files.marioncountymastergardeners.com/uploads/1/3/1/3/131383771/3cfe1a45ceb7cdc.pdf
    • https://cdn.shopify.com/s/files/1/0431/5286/7494/files/14469478548.pdf
    • https://cdn.shopify.com/s/files/1/0438/4423/9510/files/63304022227.pdf
    • https://cdn.shopify.com/s/files/1/0432/1856/7335/files/18347670881.pdf
    • https://cdn.shopify.com/s/files/1/0433/0923/6374/files/sovuwokituforoxek.pdf
    • https://cdn.shopify.com/s/files/1/0429/7054/6329/files/subnautica_recharge_battery.pdf
    • https://cdn.shopify.com/s/files/1/0428/1407/9143/files/41196203121.pdf
    • https://cdn.shopify.com/s/files/1/0431/2216/3876/files/zowatemiludizupadufe.pdf
    • https://cdn.shopify.com/s/files/1/0440/0925/9158/files/agritourism_in_the_philippines.pdf
    • https://cdn.shopify.com/s/files/1/0427/8288/4006/files/sozojejiwovoverodemafodon.pdf
    • https://cdn.shopify.com/s/files/1/0435/5316/1367/files/6607846072.pdf
    • https://cdn.shopify.com/s/files/1/0428/3170/8316/files/wexotelagubazovitomo.pdf
    • https://cdn.shopify.com/s/files/1/0434/2359/6693/files/gopuw.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_off000078ec.bin
3993e337418b0e2a206c23faf45556c985af7f7621f35e7af22c1761603b2109		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78EC 5160 bytes
font_01_sfnt_off00008a84.bin
228b9cdce67e55f20a53f5af1c0c37c5c816c57a9bf3ec8185eaf81bd0484e5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A84 9964 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.