Malicious PDF — malware analysis report

Static analysis result for SHA-256 347f577693dbf965…

MALICIOUS

PDF

30.0 KB Authoring application: Inkscape
MD5: d09fc2ca325380a01a19f3ac97c78504 SHA-1: 17a934f71753a689c51eefe4c2428abc359bf724 SHA-256: 347f577693dbf965b250082b294cc7fafb30036819ff577e6f47608b346a43e6
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. ClamAV identified this as Pdf.Phishing.TtraffRobotInstall, indicating a phishing or traffic redirection scheme. The ML classifier also strongly indicated maliciousness.

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://mrulmersmathunit.com/uploads/1/3/0/2/130291884/guximebedutoja.pdf
    • http://sugarbearspet.com/uploads/1/3/0/4/130476351/400021.pdf
    • http://20yearsincode.com/uploads/1/3/0/6/130604458/rosisib-dofibuv-guvaruzagetov.pdf
    • http://summercollege4kids.org/uploads/1/3/0/8/130814601/musikepaj.pdf
    • http://www.true-excellencemavka.com/uploads/1/3/0/5/130589161/1786396.pdf
    • http://shekina100organicanatural.com/uploads/1/3/0/6/130604885/7790772.pdf
    • http://homegrownent.net/uploads/1/3/0/2/130288514/kunedopute-bodivegatipa-mufakufeterusog.pdf
    • http://hhinternational.net/uploads/1/3/0/7/130738679/9793481.pdf
    • http://mobileprompter.net/uploads/1/3/0/7/130775698/9003137.pdf
    • http://pudgery.com/uploads/1/3/0/7/130739029/3aba65a.pdf
    • http://www.studyaimusa.org/uploads/1/3/0/7/130739330/4670872.pdf
    • http://atlanticseasaltcompany.com/uploads/1/3/0/3/130323599/najujurirofa.pdf
    • http://lifesolutionforever.org/uploads/1/3/0/8/130813604/1348165.pdf
    • http://miniactionfigure.com/uploads/1/3/0/5/130542831/9471013.pdf
    • http://mylittlecutfootcabin.com/uploads/1/3/0/6/130621973/vedubegebulabe.pdf
    • http://msidec.com/uploads/1/3/0/5/130539053/gaxanuwar-medexul-jerosavano.pdf
    • http://o2ki0.bpmtc.com/uploads/1/3/0/7/130775654/130775654.html#debussy+arabesque+flute
    • http://miniactionfigure.com/uploads/1/3/0/5/130

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001a89.bin
7cadc4de81b8c7c6c045cefd22d0f4f9b711b65ebcf4cb7b84a294df115f9af9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A89 7328 bytes

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