Malicious PDF — malware analysis report

Static analysis result for SHA-256 c41fac45ae260cfd…

MALICIOUS

PDF

20.2 KB Created: 2019-04-30 02:42:57 +01:00 Authoring application: mPDF 5.7
MD5: 0eac136f2906363059b8f7552e6e4e76 SHA-1: 02126a6e4360d406f1590c57dd7b9f39ed4e4fd6 SHA-256: c41fac45ae260cfdbaacf1c7f2e0e6dd54c99d8dabd63a05e0756663b771c5b1
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. While many of these links resolve to benign content, the sheer volume and the nature of the heuristic suggest a malicious intent, possibly for SEO manipulation or to distribute further malicious content. No scripts were extracted from this sample, and the document body was heavily obfuscated, making it difficult to determine the exact user-facing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

Heuristics 2

  • 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.
  • 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 http://unieoooq.linkpc.net/64e44e14e94e14e0/When-Work-Doesn-t-Work-Anymore-Women-Work-and-Identity-by-Elizabeth-Perle-Mckenna.pdf
    • http://unieoooq.linkpc.net/14e14e04e04e44e1/Women-at-Work-The-Transformation-of-Work-and-Community-in-Lowell-Massachusetts-1826-1860-by-Thomas-Dublin.pdf
    • http://unieoooq.linkpc.net/44e04e24e44e14e6/Women-s-Work-The-First-20-000-Years-Women-Cloth-and-Society-in-Early-Times-by-Elizabeth-Wayland-Barber.pdf
    • http://unieoooq.linkpc.net/74e54e54e94e54e5/My-Work-Is-Not-My-Work-Pierre-Bernard-Design-for-the-Public-Domain-by-Hugues-Boekraad.pdf
    • http://unieoooq.linkpc.net/64e94e64e64e84e8/The-Year-s-Work-In-Critical-And-Cultural-Theory-Volume-15-Covering-Work-Published-In-2005-by-Andrew-Hadfield.pdf
    • http://unieoooq.linkpc.net/84e54e94e34e84e0/Fields-Factories-and-Workshops-Or-Industry-Combined-with-Agriculture-and-Brain-Work-with-Manual-Work-by-Petr-Aleksi-e-ev-ch-Kropotk-n.pdf
    • http://unieoooq.linkpc.net/94e14e14e9/It-Doesn-t-Have-to-Be-Crazy-at-Work-by-Jason-Fried.pdf
    • http://unieoooq.linkpc.net/64e44e04e04e74e7/Snafu-A-Hysterical-Memoir-about-Why-the-Government-Doesn-t-Work-by-Ellen-Roberge.pdf
    • http://unieoooq.linkpc.net/64e64e14e94e84e7/Fulcanelli-His-True-Identity-Revealed-Light-On-His-Work-by-Patrick-Rivi-re.pdf
    • http://unieoooq.linkpc.net/14e14e94e14e84e6/Women-s-Work-by-Kari-Aguila.pdf
    • http://unieoooq.linkpc.net/14e94e64e54e1/Interpretive-Work-by-Elizabeth-Bradfield.pdf
    • http://unieoooq.linkpc.net/24e54e94e04e24e5/Talking-from-9-to-5-Women-and-Men-at-Work-by-Deborah-Tannen.pdf
    • http://unieoooq.linkpc.net/94e04e24e14e94e1/Women-work-and-volunteering-by-Herta-Loeser.pdf
    • http://unieoooq.linkpc.net/44e44e14e24e44e5/Get-to-Work-A-Manifesto-for-Women-of-the-World-by-Linda-R-Hirshman.pdf
    • http://unieoooq.linkpc.net/44e64e54e14e94e0/Lean-In-Women-Work-and-the-Will-to-Lead-by-Sheryl-Sandberg.pdf
    • http://unieoooq.linkpc.net/14e14e44e94e04e94e7/Women-at-Work-in-Preindustrial-France-by-Daryl-M-Hafter.pdf
    • http://unieoooq.linkpc.net/34e44e74e04e04e7/A-Mile-in-Her-Boots-Women-Who-Work-in-the-Wild-by-Jennifer-Bove.pdf
    • http://unieoooq.linkpc.net/14e94e94e74e04e6/Women-Who-Work-Rewriting-the-Rules-for-Success-by-Ivanka-Trump.pdf
    • http://unieoooq.linkpc.net/94e44e14e24e4/Restless-Spirit-The-Life-and-Work-of-Dorothea-Lange-by-Elizabeth-Partridge.pdf
    • http://unieoooq.linkpc.net/44e24e34e84e64e3/Mistakes-I-Made-at-Work-25-Influential-Women-Reflect-on-What-They-Got-Out-of-Getting-It-Wrong-by-Jessica-Bacal.pdf