Malicious PDF — malware analysis report

Static analysis result for SHA-256 769bf9f61ff773de…

MALICIOUS

PDF

41.8 KB Created: 2020-08-25 11:30:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bcbbc44f57ac1e9cd23cc2ce32e53ef0 SHA-1: 199e22edeac59e65e3ac1ebf17eb7dc083b520e8 SHA-256: 769bf9f61ff773ded4296bd6e68c91739c08613ff0a794c97116eb39a08d83ff
154 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to a redirector service. The primary malicious link identified is https://ttraff.cc/pify?keyword=liszt+consolation+no+3+sheet+music+pdf, which is designed to lead users to further malicious content. The document's structure and content suggest it is part of a link farm or SEO manipulation scheme to distribute malicious URLs. No scripts were extracted, but the presence of numerous malicious links indicates a high likelihood of user redirection to harmful sites.

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.cc/pify?keyword=liszt+consolation+no+3+sheet+music+pdf
    • http://files.resourcesforthesoul.com/uploads/1/3/1/4/131452861/zewusanukafa.pdf
    • http://tulati.capecurbappeal.com/uploads/1/3/1/4/131437119/fowifebidaxunufani.pdf
    • http://files.theaustintexasteaparty.com/uploads/1/3/1/1/131164431/kilak.pdf
    • http://files.cassandradenhartog.com/uploads/1/3/2/7/132712235/1894158.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/2218/8701/files/kowekejobadezotugib.pdf
    • https://cdn.shopify.com/s/files/1/0431/1420/1250/files/microsoft_activex_for_windows_xp.pdf
    • https://cdn.shopify.com/s/files/1/0465/0549/2638/files/nuwatoxifesu.pdf
    • https://cdn.shopify.com/s/files/1/0433/7985/1414/files/pabipegemigeg.pdf
    • https://cdn.shopify.com/s/files/1/0429/8362/0767/files/propiedades_del_salvado_de_trigo.pdf
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/15473195611.pdf
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/23394697374.pdf
    • https://cdn.shopify.com/s/files/1/0435/8042/4351/files/aladdin_2019_movie_in_tamilrockers.pdf
    • https://cdn.shopify.com/s/files/1/0466/7847/4917/files/grammar_and_spelling_correction_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0435/6725/1617/files/vekog.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004ef9.bin
e979fb6601240c109bb34bbb9ffab90f4272773def6b188a602d67dfabb09a96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4EF9 5452 bytes
font_01_sfnt_off0000615c.bin
e74c97243b4db87f982eea01c6e7264d1575ed2f0d68ffce41d3a0edb7e02025		 pdf-font-stream PDF embedded font (sfnt) at offset 0x615C 10528 bytes
font_02_sfnt_off000084fe.bin
184efd0e138a9418359f6897f9ac56b5cd93cafbd57abf30711ac2aee7e18832		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84FE 16120 bytes

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