Malicious PDF — malware analysis report

Static analysis result for SHA-256 3368abf1517b22dd…

MALICIOUS

PDF

20.2 KB Created: 2019-04-30 05:01:07 +01:00 Authoring application: mPDF 5.7
MD5: ec73e102db59127c853668680405f204 SHA-1: 1afe0972bf3647afcade1b22ffd5d6cd76d1da00 SHA-256: 3368abf1517b22dde5c012d2bfdb225ea9829861053eef81ea3d113800086492
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs, as indicated by the PDF_SEO_LINK_FARM heuristic. While many of these URLs were classified as benign, the sheer volume and the ML_NYX_PDF_MALICIOUS firing suggest a malicious intent. The document body, though heavily obfuscated, contains references to these URLs, reinforcing the idea that the primary function is to redirect users to external content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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://seasasac.lflinkup.com/3da6da4da0da7da0/One-Real-Man-Real-Men-3-by-Coleen-Kwan.pdf
    • http://seasasac.lflinkup.com/4da1da5da1da2da3/Chicken-Soup-for-the-Girl-s-Soul-Real-Stories-by-Real-Girls-About-Real-Stuff-by-Jack-Canfield.pdf
    • http://seasasac.lflinkup.com/5da0da1da4da2da9/Top-Tips-for-Girls-Real-Advice-from-Real-Women-for-Real-Life-by-Kate-Reardon.pdf
    • http://seasasac.lflinkup.com/3da3da0da3da9da9/Short-Soup-by-Coleen-Kwan.pdf
    • http://seasasac.lflinkup.com/2da5da2da3da2da4/His-Millionaire-Maid-by-Coleen-Kwan.pdf
    • http://seasasac.lflinkup.com/5da0da4da2da7da2/Real-Reading-Real-Writing-Content-Area-Strategies-by-Donna-Hooker-Topping.pdf
    • http://seasasac.lflinkup.com/7da8da9da7da5da8/Argus-Developer-in-Practice-Real-Estate-Development-Modeling-in-the-Real-World-by-Tim-Havard.pdf
    • http://seasasac.lflinkup.com/5da0da3da0da7/The-Real-Grey-s-Anatomy-A-Behind-The-Scenes-Look-at-The-Real-Lives-of-Surgical-Residents-by-Andrew-Holtz.pdf
    • http://seasasac.lflinkup.com/4da8da6da3/Real-Good-Love-Real-Duet-2-by-Meghan-March.pdf
    • http://seasasac.lflinkup.com/5da7da5da4/Real-Sexy-Real-Dirty-Duet-2-by-Meghan-March.pdf
    • http://seasasac.lflinkup.com/4da0da4da8da8da7/Real-Men-Snarl-Real-Men-Shift-2-by-Celia-Kyle.pdf
    • http://seasasac.lflinkup.com/2da0da7da1da4da6/Real-Men-Don-t-Drink-Appletinis-Real-Men-1-by-Liz-Matis.pdf
    • http://seasasac.lflinkup.com/4da2da6da7da9da7/Real-Grass-Real-Heroes-by-Dom-Dimaggio.pdf
    • http://seasasac.lflinkup.com/5da6da1da5da0da3/Krav-Maga-Real-World-Solutions-to-Real-World-Violence---Disrupt-Damage-Destroy-Disengage-by-Gershon-Ben-Keren.pdf
    • http://seasasac.lflinkup.com/2da6da0da3da0/The-Unreal-and-the-Real-Selected-Stories-Volume-Two-Outer-Space-Inner-Lands-The-Unreal-and-the-Real-2-by-Ursula-K-Le-Guin.pdf
    • http://seasasac.lflinkup.com/1da0da3da3da7/Real-Real-1-by-Katy-Evans.pdf
    • http://seasasac.lflinkup.com/2da6da0da3da1/The-Unreal-and-the-Real-Selected-Stories-Volume-One-Where-on-Earth-The-Unreal-and-the-Real-1-by-Ursula-K-Le-Guin.pdf
    • http://seasasac.lflinkup.com/5da5da1da3da3da6/Real-Mermaids-Don-t-Sell-Seashells-Real-Mermaids-4-by-Helene-Boudreau.pdf
    • http://seasasac.lflinkup.com/4da7da2da4da8da1/Practicing-My-First-Real-Kiss-My-First-Real-Kiss-1-by-Ciara-Jamie-Garcia.pdf
    • http://seasasac.lflinkup.com/3da8da1da1da7da1/Real-Vampires-Do-It-in-the-Dark-Real-Vampires-Don-t-Sparkle-2-by-Amy-Fecteau.pdf
    • http://seasasac.lflinkup.com/5da0d

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