Malicious PDF — malware analysis report

Static analysis result for SHA-256 acc839a303ad607b…

MALICIOUS

PDF

38.9 KB Created: 2020-09-02 16:36:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 778d0f82a3b840c4824387db1715e60a SHA-1: 57dfe9a8d7911a18d6307b47ea820631a699f6fd SHA-256: acc839a303ad607bb46b10591fa5d16a4510536cc9c624090905b59ee3a5ac1a
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 primary malicious link, 'https://ttraff.me/wix?keyword=adobe+bodoni+font', is likely used to redirect the user to a harmful destination. The presence of numerous other links, many hosted on shopify.com, suggests a link farm or SEO poisoning tactic to obscure the malicious destination. No scripts were extracted, and the document body was heavily obfuscated.

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.me/wix?keyword=adobe+bodoni+font
    • https://cdn.shopify.com/s/files/1/0430/9634/2695/files/suzigodufikamupifeli.pdf
    • https://cdn.shopify.com/s/files/1/0437/6464/6049/files/dijoto.pdf
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/xizadibotomu.pdf
    • https://cdn.shopify.com/s/files/1/0430/3188/8021/files/55978115146.pdf
    • https://cdn.shopify.com/s/files/1/0439/3913/5643/files/4212611311.pdf
    • https://cdn.shopify.com/s/files/1/0432/9373/7118/files/gubikilagigitiwil.pdf
    • https://cdn.shopify.com/s/files/1/0443/2871/4396/files/chronological_resume_format_for_students.pdf
    • https://cdn.shopify.com/s/files/1/0431/6587/6378/files/patriots_vs_lions.pdf
    • https://cdn.shopify.com/s/files/1/0438/2670/8640/files/bombastic_brothers_mod_apk_free_shopping.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_off0000546c.bin
5607e51cc2745dacbcdfa1c743d91132e50c38be0371e73e8f2e3c47a45e31b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x546C 4512 bytes
font_01_sfnt_off000063df.bin
08bfb93c2b0cbb78154c4595a2dc35b58b022635ba862bdda1b5034caabc151d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63DF 13872 bytes

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