Malicious PDF — malware analysis report

Static analysis result for SHA-256 e54fe5863a819e7d…

MALICIOUS

PDF

36.5 KB Authoring application: QPDF
MD5: a785d80fcf0d60ca8c3f67b4e4e52523 SHA-1: 50b1946b112fa1fa2fa3470996322322bfe9a6f5 SHA-256: e54fe5863a819e7dbd55c6f6435305f20c400575f0dec4ddc6e9356667ff266c
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including a critical finding for a link farm and a high-confidence ML classification. ClamAV also identified it as phishing-related malware. The embedded URLs suggest a redirection or download campaign, likely aimed at distributing further malicious content or conducting phishing attacks.

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://countrydollhouse.com/uploads/1/3/0/7/130739544/0d024e8e5b.pdf
    • http://odessawaterwell.com/uploads/1/3/0/6/130621484/65cc0.pdf
    • http://firtreeenterprises.com/uploads/1/3/0/2/130274281/29694.pdf
    • http://plantandsoiltreatment.com/uploads/1/3/0/4/130477420/cbb24d21bd.pdf
    • http://dostal.at/uploads/1/3/0/6/130604281/bekakuvenev.pdf
    • http://marijuanamarketingexperts.com/uploads/1/3/0/8/130814133/3eb16ef2.pdf
    • http://noplacelikeahome.com/uploads/1/3/0/6/130604093/runokimijan_zusorure.pdf
    • http://bienchulitos.com/uploads/1/3/0/7/130740018/kifupagaripam_luzurugu_fifivazobazina_zerovugaliroju.pdf
    • http://minecraftray.site/uploads/1/3/0/5/130588315/2524716.pdf
    • http://phyllismodarelli.com/uploads/1/3/0/5/130541211/53944.pdf
    • http://nanabkitchen.musicatozpodcast.com/uploads/1/3/0/6/130620950/130620950.html#2030+agenda+sustainable+development+goals

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003804.bin
5fde0d1f73c295f8b83e07d7f59a004a52dd7ee571d1cd66d286854e67122eef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3804 8120 bytes

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