Malicious PDF — malware analysis report

Static analysis result for SHA-256 6abe39623dc10007…

MALICIOUS

PDF

51.1 KB Created: 2020-08-30 06:28:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1ace9f86ec77e102a98d1b57996ae726 SHA-1: 7d4b014ccd761fd577b3a6ec996a54f9e4b9cbea SHA-256: 6abe39623dc10007fca13f9aa7fd2dccaf4665ee14ae4c0d810e036624969f2b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file contains a social engineering lure, presenting a "best buy price guarantee" to trick users into clicking a link. The link directs to a malicious redirector, indicating a phishing or malware distribution attempt. The presence of numerous external PDF links suggests a link farm, likely for SEO manipulation or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.club/wix?keyword=best+buy+price+guarantee
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/2412/9952/files/operations_management_11th_edition_heizer.pdf
    • https://cdn.shopify.com/s/files/1/0428/3236/3676/files/11283774870.pdf
    • https://cdn.shopify.com/s/files/1/0431/4464/2715/files/19546713020.pdf
    • https://cdn.shopify.com/s/files/1/0430/1701/1353/files/jakuwi.pdf
    • https://static.usrfiles.com/ugd/1f2646_9e4db257d0de43aab7cf3e38dc476b31.pdf
    • https://static.usrfiles.com/ugd/3826db_fa90d4fc3e7b49038fc9d431208f52c7.pdf
    • https://static.usrfiles.com/ugd/cbdbb6_97a4a692a9f54779a7473b2b43bdb942.pdf
    • https://static.usrfiles.com/ugd/b8c837_a939c1e33d81480ca36b718dde4ebfaf.pdf
    • https://static.usrfiles.com/ugd/0a0016_4da3d1443b6d4807a3ff148a36d1877b.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_off000089ba.bin
957a4382d6ad41c843f903b38ddd608717c2745d4b3e98607160ba90f4a9a0a9
pdf-font-stream PDF embedded font (sfnt) at offset 0x89BA 5360 bytes
font_01_sfnt_off00009c0f.bin
e0e832db848a6d1456101f0d027f1e2b245fd6b2830fee1f39f84b35ff1724d4
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C0F 10452 bytes