Malicious PDF — malware analysis report

Static analysis result for SHA-256 49f7ec5da7239764…

MALICIOUS

PDF

50.5 KB Created: 2020-10-19 22:10:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 61585b893da1b79b45a1f826db46fa6d SHA-1: ad5b2e607951caf1272d987601b7498f5fdff1fa SHA-256: 49f7ec5da7239764e50327123f82b302a381fbf50dce295821d5a63b41f4367d
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/123?keyword=hooked+book+free+pdf'. The document body also contains this URL and a link to a Shopify PDF, suggesting a lure for free book downloads. The presence of a link farm heuristic further supports the malicious intent of redirecting users to potentially harmful sites.

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.club/123?keyword=hooked+book+free+pdf
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/zidebesirolabavo.pdf
    • https://biwugina.weebly.com/uploads/1/3/1/1/131163984/jorazefitijige_gedamelonopapew_vawutise_neropa.pdf
    • https://molisemopum.weebly.com/uploads/1/3/1/4/131437834/xoxixuzexevu.pdf
    • https://luwobidope.weebly.com/uploads/1/3/0/8/130814225/127653.pdf
    • https://nidixinaxob.weebly.com/uploads/1/3/0/7/130739699/xuxedupif.pdf
    • https://sakukavazu.weebly.com/uploads/1/3/1/3/131379729/fapuvamovilojidivex.pdf
    • https://givexikiduxa.weebly.com/uploads/1/3/1/3/131398224/4127a67afe.pdf
    • https://jewajufigojoxi.weebly.com/uploads/1/3/1/4/131438211/2823545.pdf
    • https://nobinetezo.weebly.com/uploads/1/3/0/9/130969761/sizalumevowabodum.pdf
    • https://cdn.shopify.com/s/files/1/0266/9297/6829/files/the_prophet_book_kahlil_gibran.pdf
    • https://cdn.shopify.com/s/files/1/0434/3870/2748/files/59371308726.pdf
    • https://cdn.shopify.com/s/files/1/0495/4878/7864/files/shoelace_length_guide_sneakers.pdf
    • https://cdn.shopify.com/s/files/1/0438/4768/0162/files/download_battery_saver_app_apk.pdf
    • https://cdn.shopify.com/s/files/1/0431/8206/3778/files/pittsburgh_civic_arena_wrestling.pdf
    • https://cdn.shopify.com/s/files/1/0486/4324/4190/files/linear_pair_definition_in_malayalam.pdf
    • https://cdn.shopify.com/s/files/1/0479/6189/9171/files/worksheet_for_4_year_olds.pdf
    • https://cdn.shopify.com/s/files/1/0266/8121/3113/files/growtopia_guide_surgery.pdf
    • https://cdn.shopify.com/s/files/1/0482/5759/7595/files/letujexe.pdf
    • https://cdn.shopify.com/s/files/1/0501/8697/7441/files/pci_express_m.2_specification_revision_1.0.pdf
    • https://uploads.strikinglycdn.com/files/e4e5db51-f72c-4680-9d68-3930e9281801/wijedepuj.pdf
    • https://uploads.strikinglycdn.com/files/9e21c9ba-4b09-4f16-b187-6c9bdfeb2285/43973623299.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_off00008a32.bin
6d21e80b8b9b79b354c776f9ab7c1b76589db32f35d07289b8ab7a4b21c221aa
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A32 4780 bytes
font_01_sfnt_off00009a7a.bin
703be7ad47514862ccdcf6f0c417224e4f3cd047815d0d3356f15d783141d4ca
pdf-font-stream PDF embedded font (sfnt) at offset 0x9A7A 9920 bytes