Malicious PDF — malware analysis report

Static analysis result for SHA-256 496b3e607d4c8af6…

MALICIOUS

PDF

41.3 KB Created: 2020-08-15 01:23:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46febe0ad7bf5f881e63db2b04901a4e SHA-1: 6dd207d43d0abdddc1dde50b5af7ec23795f892e SHA-256: 496b3e607d4c8af611bbeca6d82b2ca5180d0aa9e691c80dbad581216c74cb80
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic firings indicate a PDF link farm, suggesting the primary purpose is to lure users to external, potentially malicious, websites. No scripts were extracted from this sample.

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.com/pify?keyword=angular+2+directive+html+template
    • http://gilafogaw.itemsforfbasellers.com/uploads/1/3/2/6/132681352/pupejatiruno-gupewozurokuti.pdf
    • http://files.artistry.dance/uploads/1/3/1/3/131383649/kufakijazez.pdf
    • https://cdn.shopify.com/s/files/1/0431/4077/6090/files/bifezazugaf.pdf
    • https://cdn.shopify.com/s/files/1/0451/1003/4597/files/3655861144.pdf
    • https://cdn.shopify.com/s/files/1/0435/9133/6099/files/bohemian_rhapsody_piano_solo_advanced.pdf
    • https://cdn.shopify.com/s/files/1/0432/8236/6624/files/niroferunojapesonewekid.pdf
    • https://cdn.shopify.com/s/files/1/0434/7969/5526/files/77325507496.pdf
    • https://cdn.shopify.com/s/files/1/0431/7007/0690/files/ich_guideline_for_analytical_method_validation.pdf
    • https://cdn.shopify.com/s/files/1/0432/1479/9012/files/kagawe.pdf
    • https://cdn.shopify.com/s/files/1/0434/1386/4602/files/futenubugiwe.pdf
    • https://cdn.shopify.com/s/files/1/0437/1175/8491/files/report_abandoned_vehicle_los_angeles.pdf
    • https://cdn.shopify.com/s/files/1/0435/5771/6119/files/social_arithmetic_mathematics.pdf
    • https://cdn.shopify.com/s/files/1/0436/4750/0448/files/miwamemowawijedewonedal.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_off00005f63.bin
404737ae5818321a87c2563534426caf4d11bad9b2a8011587bc06a9ea9eb4e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F63 5488 bytes
font_01_sfnt_off000071e3.bin
eb2c897bfa390c4fff7e942bf14e167d7cd383717d1273eb1908fdf0a0e69c5b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71E3 11684 bytes

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