Malicious PDF — malware analysis report

Static analysis result for SHA-256 37472ab04601cf07…

MALICIOUS

PDF

38.5 KB Created: 2020-08-25 01:08:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ab75f1bfbe3b3aac45ca55e0a483aa83 SHA-1: 69a4f56961bfa79111fa53722a94982981ba282b SHA-256: 37472ab04601cf07c5aa1a38e987e4fc4d7da5bdef362a8c5494b33e710c6141
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. The document also exhibits characteristics of a browser extension installation lure, suggesting a social engineering tactic to trick the user into clicking the malicious link. The link leads to 'ttraff.com', a known malicious redirector, which likely serves as a gateway to further malicious content or downloads.

Heuristics 4

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=format+jsp+code+in+notepad%252B%252B
    • http://dawigo.justinedaisuke.com/uploads/1/3/2/6/132695780/2b81ae5d.pdf
    • http://soxoxigo.spartanhandguntraining.com/uploads/1/3/1/0/131070858/noduxeweb-reriki-zudesoxususel.pdf
    • https://cdn.shopify.com/s/files/1/0438/3798/0834/files/tamasozowajiririmurijuz.pdf
    • https://cdn.shopify.com/s/files/1/0437/1097/2053/files/adverbs_and_expressions_of_frequency_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0429/7244/6873/files/cantilever_bridge.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/porovurujapiganipuzul.pdf
    • https://cdn.shopify.com/s/files/1/0434/7510/7990/files/ativador_do_office_2013_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0435/5915/7921/files/kuruxulovipivelidiwokumoj.pdf
    • https://cdn.shopify.com/s/files/1/0432/8135/0820/files/datarinajolatoxiw.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_off00005bb7.bin
b348a271758179df0a5871ecc0c04a3ea16510fd46103301b1f26de4119fc4d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB7 5220 bytes
font_01_sfnt_off00006d62.bin
9af6fe2b9340993d988eaca4a97c79a8170e6b72a20ceb9400a7306076b50a1c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D62 9476 bytes

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