Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1906a1336b2a8dc…

MALICIOUS

PDF

21.4 KB Created: 2020-03-15 21:04:18 +00:00 Authoring application: mPDF 5.7
MD5: 1f13592debea24e7fdff20f3394db3ba SHA-1: 83dbbb049fd56b9bc576c34a676d4b682312fcc4 SHA-256: f1906a1336b2a8dc78d3704e3b5282355ad7a7c442060e636d32d44402517e39
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF document was flagged by a machine learning classifier and contains a large number of embedded links, indicating a potential SEO spam or content distribution scheme. The primary heuristic identified a link farm with 25 external PDF links, suggesting the document's purpose is to redirect users to other potentially malicious or misleading content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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://rtuninnsi.myhome.cx/26a46a76a36a76a9/Forbidden-Discover-the-Legend-Wolf-Sirens-1-by-Tina-Smith.pdf
    • http://rtuninnsi.myhome.cx/56a46a16a96a2/Fever-Many-are-Born-Few-are-Reborn-Wolf-Sirens-2-by-Tina-Smith.pdf
    • http://rtuninnsi.myhome.cx/26a76a96a06a56a2/Dusk-In-Shade-The-Wolves-Rise-at-Sunset-Wolf-Sirens-4-by-Tina-Smith.pdf
    • http://rtuninnsi.myhome.cx/56a06a46a66a1/Night-Fall-What-Rises-must-Fall-Wolf-Sirens-3-by-Tina-Smith.pdf
    • http://rtuninnsi.myhome.cx/66a16a96a36a26a2/Forbidden-Scandalous-Sirens-1-by-Tracy-Cooper-Posey.pdf
    • http://rtuninnsi.myhome.cx/86a46a66a96a0/Legend-of-the-White-Wolf-Heart-of-the-Wolf-4-by-Terry-Spear.pdf
    • http://rtuninnsi.myhome.cx/56a56a96a56a56a3/Zeldapedia---The-Legend-of-Zelda-The-Legend-of-Zelda-Bosses-the-Legend-of-Zelda-Characters-the-Legend-of-Zelda-Dungeons-the-Legend-of-Zelda-Enemies-the-Legend-of-Zelda-Images-the-Legend-of-Zelda-Items-the-Legend-of-Zelda-Locations-by-Source-Wikia.pdf
    • http://rtuninnsi.myhome.cx/66a16a96a26a76a6/Gotham-City-Sirens-Volume-2-Songs-of-the-Sirens-by-Paul-Dini.pdf
    • http://rtuninnsi.myhome.cx/46a06a66a96a26a9/Since-the-Sirens-Sirens-of-the-Zombie-Apocalypse-1-by-E-E-Isherwood.pdf
    • http://rtuninnsi.myhome.cx/46a46a06a26a96a2/Hearts-to-Be-Mended-Forbidden-Love-Novella-6-by-Bree-Wolf.pdf
    • http://rtuninnsi.myhome.cx/46a46a06a46a36a5/Conquering-her-Heart-Forbidden-Love-Novella-8-by-Bree-Wolf.pdf
    • http://rtuninnsi.myhome.cx/86a16a86a76a1/The-Chase-The-Forbidden-Game-2-by-L-J-Smith.pdf
    • http://rtuninnsi.myhome.cx/16a16a96a76a16a76a1/The-Forgotten-Wife-A-Forbidden-Love-Novella-Series-Book-3-by-Bree-Wolf.pdf
    • http://rtuninnsi.myhome.cx/26a76a96a56a16a5/The-Last-Wolf-The-Legend-of-All-Wolves-1-by-Maria-Vale.pdf
    • http://rtuninnsi.myhome.cx/16a96a66a76a46a8/Reincarnation-The-Legend-of-Snow-Wolf-1-by-Fred-Lit-Yu.pdf
    • http://rtuninnsi.myhome.cx/16a86a86a86a06a0/A-Wolf-Apart-The-Legend-of-All-Wolves-2-by-Maria-Vale.pdf
    • http://rtuninnsi.myhome.cx/26a56a96a16a56a1/The-Hunter-The-Chase-The-Kill-Forbidden-Game-1-3-by-L-J-Smith.pdf
    • http://rtuninnsi.myhome.cx/96a76a86a36a26a3/Wolf-in-Kunst-Und-Literatur-Der-Wolfsjunge-Rotkappchen-Kami-to-K-Shinry-Der-Mit-Dem-Wolf-Tanzt-Asena-Legende-Der-Wolfsmensch-Der-Wolf-Und-Die-Sieben-Jungen-Geisslein-Hase-Und-Wolf-Kapitolinische-Wolfin-Peter-Und-Der-Wolf-by-Source-Wikipedia.pdf
    • http://rtuninnsi.myhome.cx/16a46a76a96a26a9/The-Forbidden-Game-Forbidden-Game-1-3-by-L-J-Smith.pdf
    • http://rtuninnsi.myhome.cx/56a06a26a56a76a3/The-Legend-of-the-10-Elemental-Masters-by-Nick-Smith.pdf
    • http://rtuninnsi.myhome.cx/56a56a96a56a56a3/Zeldapedia---