Malicious PDF — malware analysis report

Static analysis result for SHA-256 6454d2b172beff49…

MALICIOUS

PDF

38.0 KB Authoring application: LibreOffice
MD5: 0577cfbe199927cefdc34d06bad330cd SHA-1: a9f1be16e7fa54559ad7c4446eae2bde82fd5e55 SHA-256: 6454d2b172beff49542ec75d9c116af70674bb39b3d66c0d699d27103d3ecce9
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, as suggested by the 'PDF_SEO_LINK_FARM' heuristic and ClamAV detection. While no scripts were explicitly extracted, the structure and URL distribution strongly suggest a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://monikagodsmark.com/uploads/1/3/0/2/130289733/c1753.pdf
    • http://micahtwilson.com/uploads/1/3/0/4/130476122/lukizu.pdf
    • http://neaod.com/uploads/1/3/0/5/130541103/rovedezopopusodeka.pdf
    • http://mobotflexi.com/uploads/1/3/0/5/130590698/lajazazazum_temojirim.pdf
    • http://banginhardfireworks.com/uploads/1/3/0/6/130639935/1160443.pdf
    • http://xojivuleg.xlebnoemesto.ru/uploads/2020/01/29/7576255.pdf
    • http://naturesworks.net/uploads/1/3/0/4/130476034/marewaxodedun.pdf
    • http://pokokud.polimernye.ru/uploads/2020/01/28/titanisikukoso.pdf
    • http://bsgfinancial.com/uploads/1/3/0/4/130476089/puvobati.pdf
    • http://northernwoodlandindianart.com/uploads/1/3/0/2/130289355/feduguxuf_wubanaxapemop.pdf
    • http://sjnbasketball.org/uploads/1/3/0/4/130483584/vupap.pdf
    • http://lukemartin.rocks/uploads/1/3/0/6/130605173/65649.pdf
    • http://numinersfootball.com/uploads/1/3/0/5/130588605/130588605.html#time+management+chart+urgent+importa

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012dd.bin
a1075821dae1abe693794e91f6ba69cafab9cfb148ab187579c9ca40aec7ac78		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12DD 8204 bytes

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