Malicious PDF — malware analysis report

Static analysis result for SHA-256 2676255439006583…

MALICIOUS

PDF

44.7 KB Created: 2020-08-21 19:29:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: afac92e409f646c687a95e13648f397c SHA-1: bef2e2436f7e30cf03162c167411e0b07ff64acf SHA-256: 26762554390065835e416a6519b2a171608c797b2fde1201c1e3edf55625a04c
68 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=can+you+shower+in+water+with+coliform'. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The presence of this malicious URL indicates the document's intent is to redirect the user to a potentially harmful site. No scripts were extracted, and the document body's content is minimal and obfuscated, making it difficult to determine a more specific attack pattern or family.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.ru/pify?keyword=can+you+shower+in+water+with+coliform
    • http://files.elementsbookscoffeebeer.com/uploads/1/3/2/6/132695576/zisajojofevowepesuw.pdf
    • http://lesikoku.cxgreenworks.com/uploads/1/3/0/8/130874642/0cb2f8c8.pdf
    • https://cdn.shopify.com/s/files/1/0428/6644/2406/files/ferelorubugimobuxamekeg.pdf
    • https://cdn.shopify.com/s/files/1/0431/9464/6689/files/pdf_annotator_for_android.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/arabic_words_in_english_translation.pdf
    • https://cdn.shopify.com/s/files/1/0434/0151/1068/files/cch_chuyn_i_sang_file_nh.pdf
    • https://cdn.shopify.com/s/files/1/0428/9714/6019/files/wopivexasufagomoremidax.pdf
    • https://cdn.shopify.com/s/files/1/0434/7147/0742/files/new_holland_ls170.pdf
    • https://cdn.shopify.com/s/files/1/0435/2851/9832/files/microbiology_lab_report_answers.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_off00007273.bin
28efa7dd080c5dafcccfa6f8375e18d48a36ce0f0772b4371d12ac49957828dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7273 5220 bytes
font_01_sfnt_off0000841f.bin
029d15cb101982d862c355492882d427ef08114c4b1d8cf05ec2b69d831860ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x841F 10628 bytes

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