Malicious PDF — malware analysis report

Static analysis result for SHA-256 7221fb0291918bc6…

MALICIOUS

PDF

59.9 KB Created: 2020-08-11 00:28:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43d6a69e38948cb8fff25faa0427bdf8 SHA-1: 433f0f587217a6b05d8596b9fd8c2b773002008b SHA-256: 7221fb0291918bc612be47e3717d80630888ae77f1dcdcb5f09adcdb8412f575
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, including a critical redirector link to ttraff.ru, suggesting a phishing or malicious redirection attempt. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the attack pattern. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=anaplasma+platys+dog+pdf
    • http://files.txagriwomen.com/uploads/1/3/0/8/130814235/belanole_vujibibokof_wijumato_zimatama.pdf
    • http://files.tommyjose.com/uploads/1/3/1/0/131070113/rukep_lexinixe_rubuwitujonuto_taboselu.pdf
    • http://kazewuma.most-wanted-ent.com/uploads/1/3/0/8/130873995/wewegaworo_fijudojogula.pdf
    • http://files.melodiousstrings.com/uploads/1/3/0/8/130874189/605494.pdf
    • http://files.kickit2cancer.com/uploads/1/3/1/8/131856234/jaborumon.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45035229099.pdf
    • https://cdn.shopify.com/s/files/1/0430/0737/7567/files/15920314426.pdf
    • https://cdn.shopify.com/s/files/1/0434/4207/7846/files/38142862061.pdf
    • https://cdn.shopify.com/s/files/1/0450/7874/1155/files/school_annual_report_by_principal.pdf
    • https://cdn.shopify.com/s/files/1/0434/5190/8249/files/nemuvox.pdf
    • https://cdn.shopify.com/s/files/1/0429/8027/8426/files/62451085688.pdf
    • https://cdn.shopify.com/s/files/1/0432/5713/5264/files/26640643808.pdf
    • https://cdn.shopify.com/s/files/1/0435/2016/3999/files/python_tail_file.pdf
    • https://cdn.shopify.com/s/files/1/0431/5978/1538/files/79704666955.pdf
    • https://cdn.shopify.com/s/files/1/0450/8745/7432/files/business_writing_book_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/rawolefajubozurujorimi.pdf
    • https://cdn.shopify.com/s/files/1/0439/4903/1592/files/double_column_cash_book_questions_with_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0436/6339/2921/files/free_new_year_wallpepar.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a0ee.bin
0ab5f9a16d5b4f3901c00d49facac55d322a4ec71fbb73b65a9cf34f0394956f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA0EE 5356 bytes
font_01_sfnt_off0000b320.bin
a4a6566ca4495b2ba7e55b71eb6c92915d2e3612d63ba02cb432ec9f46e0b2a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB320 15356 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.