Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a19af2ef762a90e…

MALICIOUS

PDF

39.2 KB Created: 2020-08-31 17:16:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0f9668d2c656af966eada97d37accbfa SHA-1: 7919cc6a7040aa1fcbbe6c117c280ace8d85a534 SHA-256: 0a19af2ef762a90e5628559631d4ad1c0ca1512f9a958e4f09a7d9dffe5f695d
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with a critical heuristic identifying a link to known malicious redirector infrastructure at 'https://ttraff.com/wix?keyword=resto+homard+bleu+treport'. Another heuristic indicates the PDF functions as a link farm, likely to distribute traffic or improve SEO for malicious sites. The presence of these links suggests an attempt to direct users to harmful content, potentially as part of a phishing or scam campaign.

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.com/wix?keyword=resto+homard+bleu+treport
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://static.usrfiles.com/ugd/b88e3d_75d39d18a2464b4591d0d61c260a81ad.pdf
    • https://static.usrfiles.com/ugd/5b9365_c1c7261cbd9e4cb287d45c86015255d7.pdf
    • https://static.usrfiles.com/ugd/22bf55_c7d9a429f4584fcb92fe0e95a916deb8.pdf
    • https://static.usrfiles.com/ugd/cbdbb6_d71e9b1c91474af38074cddd1f67a0ad.pdf
    • https://cdn.shopify.com/s/files/1/0431/2766/8890/files/gagamepisifuz.pdf
    • https://cdn.shopify.com/s/files/1/0433/6759/6191/files/gubutaguvuvuji.pdf
    • https://cdn.shopify.com/s/files/1/0432/3636/0351/files/cbse_syllabus_for_class_10_english.pdf
    • https://cdn.shopify.com/s/files/1/0465/0772/0854/files/bpt_video_intercom_manual.pdf
    • https://static.usrfiles.com/ugd/4bb894_18eedb51a1ea458882c0072f4c028e5e.pdf
    • https://static.usrfiles.com/ugd/63d3ad_b0df86c453714ecfae473f9073c5d66b.pdf
    • https://static.usrfiles.com/ugd/b8c837_9c71c59435294bb49a24a87059cfecf8.pdf
    • https://static.usrfiles.com/ugd/c345b0_4e77a461f43e47e596569173cca161a3.pdf
    • https://static.usrfiles.com/ugd/3cb679_9a967f378fc548829c28985d8b6148d6.pdf
    • https://static.usrfiles.com/ugd/b8c837_dcf8782af44b4518881e0c9c9d18b526.pdf
    • https://static.usrfiles.com/ugd/80bfa9_278098d0df8841df8315a1afee108be2.pdf
    • https://static.usrfiles.com/ugd/52b593_13874e3e5e6e44c1a2c446095b813ca9.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_off00004e7b.bin
32c2ee57fa2f7a0fdc77d65363dbba25cf547c438dc0e88264e047db0320c368		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E7B 5076 bytes
font_01_sfnt_off00005fb6.bin
17af59bcdb64d144d208c50a047aa8c20bab5548e9f75f1b9ad2c25f7d7e89df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB6 10176 bytes
font_02_sfnt_off000081f5.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81F5 4324 bytes

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