Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ce59439961cf026…

MALICIOUS

PDF

53.9 KB Created: 2020-08-31 15:50:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f0a8890d85d7cc0cb79cddc34d0907f SHA-1: 0f822dc9638fb7832f6004a5b359ca6fe1dde6a2 SHA-256: 5ce59439961cf026e764cd13de3c7bbe90913f0e0e84b3f421aa0b3f014f3418
154 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one identified as a known malicious redirector. The document body, though heavily obfuscated, contains text referencing a game guide and the malicious URL. This suggests a phishing or malware distribution attempt, leveraging a lure to direct users to malicious infrastructure.

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/wix?keyword=warlock+demonology+4.+3+4+pve+guide
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/d7ba0f_c583b995d12d408a87652ea9e599e96d.pdf
    • https://static.usrfiles.com/ugd/a382ee_ab22d13906404b76b973ed9d5d148bc2.pdf
    • https://static.usrfiles.com/ugd/b8c837_d7a5154abc534d9fb684c0cba3385b6e.pdf
    • https://static.usrfiles.com/ugd/314c35_4bdf15e7400047178bcd963c38953a49.pdf
    • https://cdn.shopify.com/s/files/1/0440/2728/1558/files/downloadable_credit_card_authorization_form.pdf
    • https://cdn.shopify.com/s/files/1/0440/1030/7749/files/52550416857.pdf
    • https://cdn.shopify.com/s/files/1/0430/4060/4313/files/57634679859.pdf
    • https://cdn.shopify.com/s/files/1/0435/9605/4690/files/biwujusakirabipowonav.pdf
    • https://cdn.shopify.com/s/files/1/0432/9160/7190/files/60478368433.pdf
    • https://cdn.shopify.com/s/files/1/0428/4334/0956/files/bigegutezokuveboleguwijud.pdf
    • https://cdn.shopify.com/s/files/1/0429/7926/2615/files/caballo_de_troya_saga_completa_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0433/3151/8622/files/68619831096.pdf
    • https://cdn.shopify.com/s/files/1/0431/5529/2317/files/vanetaxonat.pdf
    • https://static.usrfiles.com/ugd/b8c837_92488ebecacd42a48bb8969f0ff89d03.pdf
    • https://static.usrfiles.com/ugd/b8c837_78f7a6f0881a4487a911c0985caa0178.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_off00007db3.bin
305e5322a99091f899ebc2b5b2bf2aab185fc54c946688ca03d5414cc81c28b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DB3 5740 bytes
font_01_sfnt_off00009155.bin
fa6b55b420fdc2fa87a9a9bf5361ad58063d8949b3cede96dbcd37cdf1249380		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9155 10376 bytes
font_02_sfnt_off0000b4e4.bin
531e37f64a2e7dc3bfb257675d9e6c644c7b1597f33ba9a969cd005a7ed65660		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB4E4 16312 bytes

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