Malicious PDF — malware analysis report

Static analysis result for SHA-256 afc455b6ba7864f1…

MALICIOUS

PDF

45.0 KB Created: 2020-07-30 13:00:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: edd68d218af1072583117f8e9e9dc572 SHA-1: 3034e9ad0c4d3a8907e85d47550e27a4cdca1098 SHA-256: afc455b6ba7864f1b0e65ec74c0e1dfaf2d86135c40b0f2696e2f48b8b21f808
178 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a lure for a 'PDF to dwg converter 2020 crack free download' and prompts the user to install a browser extension or update. It embeds a link that redirects to malicious infrastructure, indicating a social engineering attack aimed at tricking users into downloading malware or visiting malicious sites. The document body is heavily obfuscated, preventing detailed analysis of its content, but the heuristics clearly indicate a malicious redirector and a link farm designed for SEO manipulation.

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.
  • 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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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+dwg+converter+2020+crack+free+download
    • http://files.mikesoffice.ca/uploads/1/3/1/4/131438128/e8b072b.pdf
    • http://files.bellycomesfirst.com/uploads/1/3/0/8/130815095/pukeb.pdf
    • http://files.stokesed508webpage.com/uploads/1/3/0/8/130874102/3861708.pdf
    • http://files.bethanywelchfitness.com/uploads/1/3/0/8/130874612/8ae5ec226e.pdf
    • http://files.bethanywelchfitness.com/uploads/1/3/0/8/130874612/8ae
    • https://cdn.shopify.com/s/files/1/0430/7278/2489/files/lagibiduxomuvuguperox.pdf
    • https://cdn.shopify.com/s/files/1/0436/7391/1449/files/kitorof.pdf
    • https://cdn.shopify.com/s/files/1/0435/0679/4651/files/64691517576.pdf
    • https://cdn.shopify.com/s/files/1/0431/7223/3376/files/43218891754.pdf
    • https://cdn.shopify.com/s/files/1/0433/2444/0729/files/28107659215.pdf
    • https://cdn.shopify.com/s/files/1/0438/0744/1053/files/julepugumaxanaditodat.pdf
    • https://cdn.shopify.com/s/files/1/0436/6965/1609/files/65907533628.pdf
    • https://cdn.shopify.com/s/files/1/0433/1044/8795/files/13549562115.pdf
    • https://cdn.shopify.com/s/files/1/0431/4172/6370/files/depokusifakiwewiga.pdf
    • https://cdn.shopify.com/s/files/1/0432/3137/9619/files/52262365584.pdf
    • https://cdn.shopify.com/s/files/1/0430/7261/8657/files/vakekegidozibemave.pdf
    • https://cdn.shopify.com/s/files/1/0433/7188/8803/files/xojalufotopamesopezepe.pdf
    • https://cdn.shopify.com/s/files/1/0429/2093/5590/files/laxowowudagi.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_off0000720d.bin
7f2b1f4e449ef5e80e5180f9d4f197c7cc8de213578d7be949c768cdf57c19cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x720D 5240 bytes
font_01_sfnt_off00008401.bin
96239a39171eac12c40807d5346077924f1414aa8b077eee0b493fadfff2ff05		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8401 10120 bytes

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