Malicious PDF — malware analysis report

Static analysis result for SHA-256 7dc33b80c753cee6…

MALICIOUS

PDF

19.5 KB Created: 2019-05-04 12:43:44 +01:00 Authoring application: mPDF 5.7
MD5: 1f03dca30251f06a4683f7032add42a5 SHA-1: 25e6f9939575ef89b7e4863794d98d7607e55584 SHA-256: 7dc33b80c753cee6a98fcc54eb2301750398fff79c8f4337f3004db51c3eae56
90 Risk Score

Malware Insights

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

The PDF contains a link farm with 25 external PDF links, predominantly hosted on loaminoo.linkpc.net. The heuristic PDF_SEO_LINK_FARM indicates this is a technique to generate traffic or distribute further malicious content. While the specific payload is not directly executed from this PDF, the intent is to redirect users to potentially malicious or unwanted content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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://loaminoo.linkpc.net/3097091091096091/Anne-Frank-The-Diary-of-a-Young-Girl-The-Definitive-Edition-by-Anne-Frank.pdf
    • http://loaminoo.linkpc.net/2092099093092095/Anne-Frank-the-Diary-of-a-Young-Girl-by-M-E-Blau.pdf
    • http://loaminoo.linkpc.net/2092099095096096/Anne-Frank-The-Diary-of-a-Young-Girl-by-Marcia-Tretler.pdf
    • http://loaminoo.linkpc.net/2092099094095096/Anne-Frank-Diary-of-a-Young-Girl-by-Myrna-Warren.pdf
    • http://loaminoo.linkpc.net/2092099094093095/Anne-Frank-s-The-Diary-of-a-Young-Girl-Monarch-Notes-by-Eugenie-Harris.pdf
    • http://loaminoo.linkpc.net/6094098094094097/Anne-Frank-The-Story-of-a-Young-Girl-Simplified-Characters-by-Anne-Frank.pdf
    • http://loaminoo.linkpc.net/9092097090092095/Diary-of-Anne-Frank-in-Dari-Persian-or-Farsi-by-Anne-Frank.pdf
    • http://loaminoo.linkpc.net/6093096094094091/The-Diary-of-Anne-Frank-by-Anne-Frank.pdf
    • http://loaminoo.linkpc.net/4094092097091096/Anne-Frank-s-Diary-The-Graphic-Novel-by-Ari-Folman.pdf
    • http://loaminoo.linkpc.net/9090093097095099/Reading-the-Diary-of-Anne-Frank-by-Neil-Heims.pdf
    • http://loaminoo.linkpc.net/2093092090098/The-Diary-of-Anne-Frank-And-Related-Readings-by-Frances-Goodrich.pdf
    • http://loaminoo.linkpc.net/6093097098099094/There-We-ll-Meet-Again-Young-German-Girl-s-Diary-of-the-First-World-War-by-Piete-Kuhr.pdf
    • http://loaminoo.linkpc.net/2095092092091098/Young-Nanny-A-Victorian-Girl-s-Diary-1850-by-Frances-Mary-Hendry.pdf
    • http://loaminoo.linkpc.net/1091091092094094096/Anne-Frank-s-Tales-from-the-Secret-Annex-A-Collection-of-Her-Short-Stories-Fables-and-Lesser-Known-Writings-by-Anne-Frank.pdf
    • http://loaminoo.linkpc.net/2092099090095094/Anne-Frank-Her-life-in-words-and-pictures-from-the-archives-of-The-Anne-Frank-House-by-Menno-Metselaar.pdf
    • http://loaminoo.linkpc.net/4094094095090099/Anne-Frank-The-Anne-Frank-House-Authorized-Graphic-Biography-by-Sid-Jacobson.pdf
    • http://loaminoo.linkpc.net/9094097097092/Coming-of-Age-in-Mississippi-The-Classic-Autobiography-of-a-Young-Black-Girl-in-the-Rural-South-by-Anne-Moody.pdf
    • http://loaminoo.linkpc.net/2092099096094097/The-Stolen-Legacy-of-Anne-Frank-Meyer-Levin-Lillian-Hellman-amp-the-Shaping-of-the-quot-Diary-quot-by-Ralph-Melnick.pdf
    • http://loaminoo.linkpc.net/2092093091094094/Inside-Anne-Frank-s-House-An-Illustrated-Journey-Through-Anne-s-World-by-Anne-Frank-House.pdf
    • http://loaminoo.linkpc.net/4094090092092090/Anne-Frank-In-The-World-1929-1945-De-Wereld-Van-Anne-Frank-1929-1945-by-Joke-Kniesmeyer.pdf

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