Malicious PDF — malware analysis report

Static analysis result for SHA-256 559b964e7f37b335…

MALICIOUS

PDF

48.7 KB Created: 2020-08-25 16:16:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96eb5cbf11a1244ef988411276417263 SHA-1: 209d66b621bdd3f697e42993dbce9a15fa2514e6 SHA-256: 559b964e7f37b33538435351b0e291b5dffeedaae47ea143143d94ddb7e9a44a
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to benign Shopify URLs, but one critical link directs to a known malicious redirector infrastructure at `ttraff.com`. The document body, though heavily obfuscated, contains text related to 'attorney general ontario power of attorney forms', suggesting a lure to trick users into clicking the malicious link. The presence of a malicious redirector link and the mass link farm technique strongly indicate a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=attorney+general+ontario+power+of+attorney+forms
    • http://butugu.tnhempseed.com/uploads/1/3/2/7/132740541/9e42ca143a6.pdf
    • http://tofededev.karasbakeshoppe.com/uploads/1/3/2/8/132814930/3427494.pdf
    • https://cdn.shopify.com/s/files/1/0435/1921/3727/files/apriori_algorithm_paper.pdf
    • https://cdn.shopify.com/s/files/1/0437/3122/2677/files/44554483318.pdf
    • https://cdn.shopify.com/s/files/1/0432/1745/3211/files/manicurist_resume_templates.pdf
    • https://cdn.shopify.com/s/files/1/0433/7994/9718/files/favasopupesetaxixuf.pdf
    • https://cdn.shopify.com/s/files/1/0431/2462/1473/files/70632593282.pdf
    • https://cdn.shopify.com/s/files/1/0431/3346/8821/files/motivation_letter_for_job_application_sample.pdf
    • https://cdn.shopify.com/s/files/1/0431/5404/7137/files/mugogugomoxiwadifenopuwuv.pdf
    • https://cdn.shopify.com/s/files/1/0432/6014/9910/files/46531497004.pdf
    • https://cdn.shopify.com/s/files/1/0452/1204/1367/files/career_paths_tourism_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0464/6889/0782/files/dead_by_daylight_size_pc.pdf
    • https://cdn.shopify.com/s/files/1/0431/3127/3383/files/80259916800.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_off00008133.bin
c827f881c2c979fa5de987966a4048a00255ce8d8923236630f4c73f2d6df89b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8133 5404 bytes
font_01_sfnt_off0000939a.bin
22b3c25d457b713941c2e80654800252222bec9bb063f8c177713ceaa86f8603		 pdf-font-stream PDF embedded font (sfnt) at offset 0x939A 9932 bytes

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