Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ba82a4361163c77…

MALICIOUS

PDF

41.3 KB Created: 2020-08-09 12:43:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b3a8ca666e874121f330476f60d33387 SHA-1: a566bd4bfd0a1ebd5c2f102de13f8faf1c3ca0fe SHA-256: 7ba82a4361163c770a76cbd1f8b959234636ebb252b0cae82e5d8a1e3cfa7524
136 Risk Score

Malware Insights

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

The PDF contains a lure for a "Migration certificate form pdf download" and a "Click here to download" call to action, indicating a phishing or scam attempt. It embeds numerous links, with one pointing to a known malicious redirector (ttraff.ru). The document body is heavily obfuscated but contains the malicious URL and several benign-looking Shopify links, likely part of a link farm to improve search engine ranking for malicious content.

Heuristics 5

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=migration+certificate+form+pdf+download
    • http://genutem.teatimeboba.com/uploads/1/3/1/1/131164250/zemomadix.pdf
    • http://files.runningadventures.uk/uploads/1/3/1/8/131871657/pukodasife-jisijufanivu-rojopuvu.pdf
    • http://files.cantonbarbell.com/uploads/1/3/1/6/131606046/wuxusexetodi-zaromodex-bajomokusu.pdf
    • https://cdn.shopify.com/s/files/1/0437/9954/3970/files/gst_tax_rate_slab.pdf
    • https://cdn.shopify.com/s/files/1/0434/9798/0056/files/47500766906.pdf
    • https://cdn.shopify.com/s/files/1/0428/0628/0355/files/budozupizusirukorapig.pdf
    • https://cdn.shopify.com/s/files/1/0433/3119/0952/files/rakijekazebilepa.pdf
    • https://cdn.shopify.com/s/files/1/0429/5386/7427/files/lonozaxuj.pdf
    • https://cdn.shopify.com/s/files/1/0432/2931/5239/files/13106944724.pdf
    • https://cdn.shopify.com/s/files/1/0437/1267/5995/files/fabofu.pdf
    • https://cdn.shopify.com/s/files/1/0432/1771/5361/files/57726992731.pdf
    • https://cdn.shopify.com/s/files/1/0433/4511/7342/files/application_of_computer_in_nursing.pdf
    • https://cdn.shopify.com/s/files/1/0430/2353/2195/files/mastering_autocad_civil_3d_2020.pdf
    • https://cdn.shopify.com/s/files/1/0440/6778/2808/files/current_trends_in_reliability_availability_maintainability_and_safety.pdf
    • https://cdn.shopify.com/s/files/1/0431/8992/8099/files/94596184876.pdf
    • https://cdn.shopify.com/s/files/1/0433/5111/3883/files/thank_you_letter_for_donation.pdf
    • https://cdn.shopify.com/s/files/1/0431/9005/9176/files/timex_iron_man_manual.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_off00006434.bin
4322b22f4a2e8f45202f7eb11f183629b6c8a1c93b59b63d6a95df55b4006897		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6434 5396 bytes
font_01_sfnt_off00007698.bin
c33b078c27c02d0f5949cae0430032a62fa08ca9814e2324ef2c0aa973c62dbf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7698 9728 bytes

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