Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f2c5b30e49c0fd6…

MALICIOUS

PDF

40.2 KB Authoring application: OpenOffice Draw
MD5: be37f6fc9a2e278351770d8aac95ae1f SHA-1: 30bd10729acd4cdf1e4dab0b380ba8f24b74b2b4 SHA-256: 0f2c5b30e49c0fd6d0def7cdda880484483f3ffa1303b1084953a1df909f4952
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to host malicious content. ClamAV identified this as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', and a machine learning model also flagged it as malicious. The embedded URLs are the primary IOCs, suggesting a phishing or content-distribution campaign.

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://favogowu.migrascop.net/uploads/2020/01/29/8299780.pdf
    • https://zepaxisoma.weebly.com/uploads/1/3/0/3/130323896/ae1249f00b036.pdf
    • http://signaturedoulacare.com/uploads/1/3/0/6/130621665/ee7141aa067be.pdf
    • http://pioneerwinecolorado.com/uploads/1/3/0/5/130542920/dopobotagu.pdf
    • http://deinehandwerker.ch/uploads/1/3/0/5/130547728/janusa.pdf
    • http://xn--c1aanafncj4aa9da2gcbc.xn--l1acc/uploads/1/3/0/5/130551635/kiwazuj.pdf
    • http://chippewafsc.com/uploads/1/3/0/5/130590555/katutejitofoxo.pdf
    • http://vegilugun.workst.icu/uploads/2020/01/29/5695aaaeb3af.pdf
    • http://veteransmusicfest.com/uploads/1/3/0/4/130477839/fodudanebotuxor.pdf
    • http://artesania.store/uploads/1/3/0/6/130640179/gatuvokexuzamep_zekede.pdf
    • http://phoenixadjusters.net/uploads/1/3/0/5/130551935/8101318.pdf
    • http://myleftlane.com/uploads/1/3/0/6/130620800/2359963.pdf
    • http://gomriz.com/uploads/1/3/0/5/130543156/130543156.html#this+is+me+sheet+music+the+greatest
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicense

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001546.bin
51206863ebbe38eae824cc93f2bbf14d54cd734ad9171c4b3f845ca57f9a03a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1546 8628 bytes
font_01_sfnt_off0000620a.bin
83d89f79375f7f339e88070a8779324ce221c94923bff415e388e162fbc46cfe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x620A 2604 bytes

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