Malicious PDF — malware analysis report

Static analysis result for SHA-256 46cb59541173c7c3…

MALICIOUS

PDF

29.8 KB Authoring application: PDF Studio
MD5: 308d818fabcaad5ddf6f0e180e3f3bea SHA-1: 666105c5152b14a1211871e1aa448b09f5311ef6 SHA-256: 46cb59541173c7c38b40369298c71638573940657028013fcf228bb6c137932b
150 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as a Nike trainers size guide, but it redirects to malicious PDFs hosted on various compromised websites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution. The primary attack vector is the embedded malicious URL leading to further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://colorphotography.com/uploads/1/3/0/2/130289792/d19c9f502.pdf
    • http://lauferrari.com/uploads/1/3/0/5/130589031/gokipojo.pdf
    • http://serenitystitchesny.com/uploads/1/3/0/2/130287842/4ed9e1.pdf
    • http://studioprbozeman.com/uploads/1/3/0/5/130546971/zonekisiju-kenipamalar-wipon.pdf
    • http://rkplasticsurgery.com/uploads/1/3/0/4/130476642/xusosolorade-tumuteku.pdf
    • http://detuvol.huaweinew.ru/uploads/2020/01/29/tawalosovuxu.pdf
    • http://wit-isms.com/uploads/1/3/0/4/130493816/zodazilisuku.pdf
    • http://wuxuekx.com/uploads/2020/01/28/bukuzof-leger.pdf
    • http://bozemanradiant.com/uploads/1/3/0/2/130289283/nagulimo-lemat.pdf
    • http://beaconclean.com/uploads/1/3/0/6/130639412/gozilu.pdf
    • https://nozevojifuniba.weebly.com/uploads/1/3/0/6/130604307/7174530.pdf
    • http://carpetcleancary.com/uploads/1/3/0/8/130814172/130814172.html#nike+trainers+size+guide+mens

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001221.bin
57e449907c8c4413492044d9dcf866b095e07febd6a9cc505767404bf62d4560		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1221 7460 bytes

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