Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbbc1f27de4e0fba…

MALICIOUS

PDF

17.6 KB Created: 2020-03-18 16:33:50 +00:00 Authoring application: mPDF 5.7
MD5: 1a3bccd44c2045949933a9d00846304c SHA-1: 4f2a4f9173a76ada5457bffa71c66572c0339f04 SHA-256: cbbc1f27de4e0fbaf36507324b43e06c529d322f4e1f174e77616050872e68f2
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to the same domain, indicating a link farm likely used for SEO poisoning or to distribute further malicious content. The ML classifier strongly supports the malicious verdict. No scripts were extracted, and the document body was heavily corrupted, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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://ieuicufioao.myhome.cx/1553557550551/Kokopelli-s-Flute-by-Will-Hobbs.pdf
    • http://ieuicufioao.myhome.cx/1551550555555551554/Play-Opera-the-Magic-Flute-Die-Zauberflote-Suite-for-Flute-and-Piano-Suite-Fur-Flote-Und-Klavier-by-Wolfgang-Amadeus-Mozart.pdf
    • http://ieuicufioao.myhome.cx/1552554550555556/The-Flute-Keeper-s-Promise-The-Flute-Keeper-Saga-4-by-Ashley-Setzer.pdf
    • http://ieuicufioao.myhome.cx/3557554559556550/The-Flute-Keeper-s-Voyage-The-Flute-Keeper-Saga-2-by-Ashley-Setzer.pdf
    • http://ieuicufioao.myhome.cx/1551550555555552557/Progressive-Jazz-Studies-for-Flute---Intermediate-Level-Etudes-Progressives-de-Jazz-Pour-Flute---Niveau-Intermediaire-Fortschreitende-Jazz-Etuden-Fur-Flote---Mittlerer-Schwierigkeitsgrad-by-James-Rae.pdf
    • http://ieuicufioao.myhome.cx/1558553558550/The-Kokopelli-Theory-by-Kevin-Correa.pdf
    • http://ieuicufioao.myhome.cx/3550550554556559/Kokopelli-Ancient-Myth-Modern-Icon-by-Treasure-Chest-Books.pdf
    • http://ieuicufioao.myhome.cx/3550551559556552/Kokopelli-The-Magic-Mirth-and-Mischief-of-an-Ancient-Symbol-by-Dennis-Slifer.pdf
    • http://ieuicufioao.myhome.cx/2557558552559/Far-North-by-Will-Hobbs.pdf
    • http://ieuicufioao.myhome.cx/8557552553551/Take-Me-to-the-River-by-Will-Hobbs.pdf
    • http://ieuicufioao.myhome.cx/6558559557552551/The-Flute-by-Valerie-A-Beauchene.pdf
    • http://ieuicufioao.myhome.cx/2557555556550/Sheep-by-Valerie-Hobbs.pdf
    • http://ieuicufioao.myhome.cx/1553557551558553/Wolf-by-Valerie-Hobbs.pdf
    • http://ieuicufioao.myhome.cx/4557556556555554/Trauma-Junkie-by-Tom-Hobbs.pdf
    • http://ieuicufioao.myhome.cx/4556557554554552/Doubt-Connected-1-by-K-A-Hobbs.pdf
    • http://ieuicufioao.myhome.cx/1558554557554/The-Catch-by-Jonathan-Hobbs.pdf
    • http://ieuicufioao.myhome.cx/8552551551554554/Learn-From-A-Pro---Flute-with-CD-by-Denise-Gendron.pdf
    • http://ieuicufioao.myhome.cx/4559557559559558/A-Bone-in-My-Flute-by-Holly-Johnson.pdf
    • http://ieuicufioao.myhome.cx/7557552552556551/Octave-and-His-Flute-by-G-rard-Moncomble.pdf
    • http://ieuicufioao.myhome.cx/1556555553557551/The-Stone-and-the-Flute-by-Hans-Bemmann.pdf
    • http://ieuicufioao.myhome.cx/355055155955655

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