Malicious PDF — malware analysis report

Static analysis result for SHA-256 194c0ecab25ad659…

MALICIOUS

PDF

40.3 KB Created: 2020-08-29 18:52:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ea00c39f5a60e90f5d67667c1dd335b4 SHA-1: 63bc869882272bbf7720d21ae1f5978ceddebf36 SHA-256: 194c0ecab25ad659cc113e6f4b79222826453469ac0dbdfc1d4dee791c91222e
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The ML classifier also strongly flagged this PDF as malicious. The embedded URL, 'https://ttraff.com/wix?keyword=generadores+de+vapor+para+ba%25C3%25B1o+turco', is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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.com/wix?keyword=generadores+de+vapor+para+ba%25C3%25B1o+turco
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/0141/3795/files/positive_affirmations_for_life.pdf
    • https://cdn.shopify.com/s/files/1/0430/4843/5861/files/bio_data_format_for_marriage_doc.pdf
    • https://cdn.shopify.com/s/files/1/0428/8158/1209/files/67769171040.pdf
    • https://cdn.shopify.com/s/files/1/0439/2439/0056/files/31728228994.pdf
    • https://cdn.shopify.com/s/files/1/0429/3741/7891/files/zaliwisenedisabazi.pdf
    • https://static.usrfiles.com/ugd/b8c837_20d1a84c056c40a3adf48572d03ab1c1.pdf
    • https://static.usrfiles.com/ugd/b8c837_97221fc78f944fa5999dde6773a19135.pdf
    • https://cdn.shopify.com/s/files/1/0435/9487/5039/files/xenalalesozavaviwasux.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/types_of_drag_in_aircraft.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_off000053d9.bin
1dc134e540fae7c88194f12095d9de05ad6622ad254739efbc6788c18eb2da5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53D9 5476 bytes
font_01_sfnt_off00006647.bin
c49557e09d34e3e40ead614a98eb22db644b684d3d97566d76b7037b60f99f50		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6647 14708 bytes

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