Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e3a0bbeca35d986…

MALICIOUS

PDF

34.8 KB Authoring application: Scribus
MD5: d02be3142bb3adc8210f35e6f662a5b2 SHA-1: 115606b6185b9d6c4969bc447a67f2ef5ca3d3b0 SHA-256: 3e3a0bbeca35d986b4518f02a887b0432f5364981d00f6dcd9d5bab7e42ae12c
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute malicious content. ClamAV detected this file as Pdf.Phishing.TtraffRobotInstall-7605656-0, and a machine learning classifier also flagged it with high confidence. The document body appears to be corrupted or heavily obfuscated, preventing a clear understanding of its immediate user-facing purpose.

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://judgespeak.com/uploads/1/3/0/4/130477448/8521807.pdf
    • http://donnamalonescience.com/uploads/1/3/0/7/130738647/1479538.pdf
    • http://thesocialist.us/uploads/1/3/0/7/130739341/lakajij.pdf
    • http://mobilebillboardsoakland.com/uploads/1/3/0/6/130604720/konijenijuj_lijexaralorabox.pdf
    • http://ncfg.life/uploads/1/3/0/3/130313075/1dc7f.pdf
    • http://determinedtolearn.info/uploads/1/3/0/6/130639936/legeru-sepenujok-vaxagefufanape-mumogafev.pdf
    • http://torranceheating.net/uploads/1/3/0/6/130620847/6d4724d207d.pdf
    • http://mrserio.com/uploads/1/3/0/6/130604598/4187291.pdf
    • http://tietheknotweddingplanners.com/uploads/1/3/0/8/130874614/8908933.pdf
    • http://nessskintique.com/uploads/1/3/0/6/130620551/mezosolaxix.pdf
    • http://worldsintowords.com/uploads/1/3/0/9/130969853/caf3f2ece4.pdf
    • http://replayacademy.net/uploads/1/3/0/6/130604777/7352130.pdf
    • http://carmarelpaso.com/uploads/1/3/0/5/130540869/205308c9188d90a.pdf
    • http://ciboimports.com/uploads/1/3/0/3/130323154/130323154.html#agilent+1260+infinity+ii+hplc+system
    • http://judgespeak.com/uploads/1/3/0/4/130477448/8521807.p

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030f7.bin
e1e1463d5a928f5430c3fd69d99073f6781c734910a8f20c624609cee263313f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x30F7 7316 bytes

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