Malicious PDF — malware analysis report

Static analysis result for SHA-256 75d5abf75a88719e…

MALICIOUS

PDF

17.7 KB Created: 2020-03-17 03:24:33 +00:00 Authoring application: mPDF 5.7
MD5: db061e8c37f68e78a743a162298e24b4 SHA-1: e305ec33c43b8b8f7e19976094fc4c90dc42955a SHA-256: 75d5abf75a88719e544a92dca802d0098ce7dd3b5cda211066c629063d4e69ef
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified as a PDF link farm. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of numerous links suggests an attempt to direct users to potentially malicious websites, possibly for SEO spam or to host further malicious content. The 'SE_DOWNLOAD_BUTTON' heuristic indicates a call-to-action, reinforcing the likelihood of a user-interaction-based attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9788

Heuristics 3

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://peldoaio.myhome.cx/13d83d73d43d23d0/Night-Shield-amp-Night-Moves-Night-Tales-5-amp-6-by-Nora-Roberts.pdf
    • http://peldoaio.myhome.cx/23d53d93d63d6/Down-and-Out-in-Purgatory-The-Collected-Stories-of-Tim-Powers-by-Tim-Powers.pdf
    • http://peldoaio.myhome.cx/13d03d53d73d03d43d2/Night-Moves-by-Cynthia-Danielewski.pdf
    • http://peldoaio.myhome.cx/23d83d83d23d63d8/Night-Moves-by-Nora-Roberts.pdf
    • http://peldoaio.myhome.cx/33d73d13d03d53d7/Night-Moves-Steel-Hippios-MC-1-by-Maria-G-Cope.pdf
    • http://peldoaio.myhome.cx/33d93d53d03d43d3/Night-Moves-Doc-Ford-20-by-Randy-Wayne-White.pdf
    • http://peldoaio.myhome.cx/13d03d33d13d53d33d2/Stories-the-Iroquois-Tell-Their-Children-by-Mabel-Powers.pdf
    • http://peldoaio.myhome.cx/33d13d23d53d33d1/A-Hero-for-the-People-Stories-of-the-Brazilian-Backlands-by-Arthur-Powers.pdf
    • http://peldoaio.myhome.cx/73d03d13d33d23d0/Powers-of-Detection-Stories-of-Mystery-amp-Fantasy-by-Dana-Stabenow.pdf
    • http://peldoaio.myhome.cx/33d63d63d23d83d8/Engaging-the-Powers-Discernment-and-Resistance-in-a-World-of-Domination-Powers-3-by-Walter-Wink.pdf
    • http://peldoaio.myhome.cx/13d03d13d13d13d33d8/Unmasking-the-Powers-The-Invisible-Forces-That-Determine-Human-Existence-Powers-2-by-Walter-Wink.pdf
    • http://peldoaio.myhome.cx/53d03d23d33d73d1/The-Fireside-Stories-Some-Ghost-Stories-for-Christmas-Night-by-H-H-Benning.pdf
    • http://peldoaio.myhome.cx/73d83d03d13d13d8/Kate-Chopin-Complete-Novels-and-Stories-At-Fault-Bayou-Folk-A-Night-in-Acadie-The-Awakening-Uncollected-Stories-by-Kate-Chopin.pdf
    • http://peldoaio.myhome.cx/43d43d53d13d73d7/How-This-Night-Is-Different-Stories-by-Elisa-Albert.pdf
    • http://peldoaio.myhome.cx/23d43d93d63d63d4/Last-Night-Stories-by-James-Salter.pdf
    • http://peldoaio.myhome.cx/33d73d43d13d93d1/Super-Powers-Vol-1-DC-Kids-Super-Powers-1-by-Art-Baltazar.pdf
    • http://peldoaio.myhome.cx/23d03d93d33d83d6/Voices-in-the-Night-Stories-by-Steven-Millhauser.pdf
    • http://peldoaio.myhome.cx/33d73d03d43d93d8/A-Day-at-the-Inn-A-Night-at-the-Palace-and-Other-Stories-by-Catherine-Lundoff.pdf
    • http://peldoaio.myhome.cx/33d83d03d73d43d1/Night-and-Fae-Vegas-Fae-Stories-Book-5-by-Tom-Keller.pdf
    • http://peldoaio.myhome.cx/43d43d53d63d93d0/The-Middle-of-the-Night-Stories-by-Daniel-Stolar.pdf