Malicious PDF — malware analysis report

Static analysis result for SHA-256 63472d194bef7f22…

MALICIOUS

PDF

45.3 KB Created: 2020-08-30 03:42:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8fe52a3b9fa21056b46de67ac6040c46 SHA-1: e4d6b9fbc43268f921ea7415aa5ad437ca702690 SHA-256: 63472d194bef7f229bb37623408346e40deee870606282fa8ec5016e8c04d765
94 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector infrastructure at 'https://ttraff.com/wix?keyword=allstate+drivewise+app'. This heuristic, combined with a high ML classifier score, strongly indicates a malicious intent, likely to lure users to a phishing or malware site. No scripts were extracted, but the embedded URL is the primary indicator of compromise.

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=allstate+drivewise+app
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/8de238_dd130abdc45c4ee2bf5c99b21473a897.pdf
    • https://static.usrfiles.com/ugd/b8c837_eff86e84fdb74fc0bf2afd4af8b1ec6c.pdf
    • https://static.usrfiles.com/ugd/fe83c3_101a20cf65084098ab2ccc909bbbd746.pdf
    • https://cdn.shopify.com/s/files/1/0432/1440/5793/files/nijase.pdf
    • https://cdn.shopify.com/s/files/1/0433/1978/7675/files/97257852101.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/22442096362.pdf
    • https://static.usrfiles.com/ugd/a771bd_a21cb47d356b459abd7059835413888c.pdf
    • https://static.usrfiles.com/ugd/bfbc46_55570f9a4ee84482995e79687d1f7879.pdf
    • https://static.usrfiles.com/ugd/2f07a1_64af57b2d13741a69ba80d195fe982d1.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000647c.bin
94ce284936a0c131bbdfa0f0b66b100ca519184e2a94404ff8110026bd698096		 pdf-font-stream PDF embedded font (sfnt) at offset 0x647C 5096 bytes
font_01_sfnt_off000075e1.bin
002b2f0e3dda4bbb887c31ed37be8274141f183845c3eb834e743cdc16de567e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75E1 5396 bytes
font_02_sfnt_off0000851f.bin
840a9ee1bd104541533a525a9fb6b52f167a7add0edfd7cd4b8fdba5f956248c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x851F 10416 bytes

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