Malicious PDF — malware analysis report

Static analysis result for SHA-256 947a72ea5f9aac84…

MALICIOUS

PDF

37.9 KB Authoring application: pdf-parser
MD5: 1cda11e8a858f4f7b0ef69bfc10a892d SHA-1: 1f4fff8a04cad02f2d3fdccbb626c57f1c591cbb SHA-256: 947a72ea5f9aac84d72ffe07bdcc5d07ced0aba3e27a80c69c5152e6b7e1c7c7
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier's high confidence score further support its malicious nature. The document body itself appears to be corrupted or contains minimal relevant text, making the link farm the primary indicator of malicious intent.

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://fojiwetusu.titangel-official.ru/uploads/2020/01/28/wafexob.pdf
    • http://wodate.com/uploads/1/3/0/7/130775172/zamole_nenowidikefukep.pdf
    • http://ngoji.com/uploads/1/3/0/3/130313458/24017a.pdf
    • http://allthingsluxeboutique.com/uploads/1/3/0/5/130538990/fa6b3a9d524115.pdf
    • http://wyld3.com/uploads/1/3/0/4/130435939/c8e82c46.pdf
    • http://shangrila.com/uploads/1/3/0/5/130588845/pofupokutiwirates.pdf
    • http://kukuromance.com/uploads/1/3/0/4/130479389/vejegipijelire.pdf
    • http://bfreshcreative.com/uploads/1/3/0/5/130543158/tarom_zosevunetuzozoz_boxiji_metipajemarufiz.pdf
    • http://mohannadgharaibeh.com/uploads/1/3/0/6/130640031/5059470.pdf
    • http://supportersection.com/uploads/1/3/0/2/130289424/povininojin-zedunuwolod-wedulotiw.pdf
    • http://ikehmope.net/uploads/1/3/0/6/130604350/9033534.pdf
    • http://brooklyneventstudios.com/uploads/1/3/0/5/130545745/8fea929f2.pdf
    • http://lamaralexanderforsenate.com/uploads/1/3/0/6/130604032/waruzixonusupa_tozeve.pdf
    • http://napawinemagazine.com/uploads/1/3/0/4/130483963/rejomedadiku.pdf
    • http://myultimatecuts.com/uploads/1/3/0/5/130589189/lakopeviwogo_ramirotisi_gimebemiwa.pdf
    • http://directly2me.com/uploads/1/3/0/2/130291371/wudojem.pdf
    • http://12ktrv.com/uploads/1/3/0/6/130604682/lonas.pdf
    • http://essentialaffair.com/uploads/1/3/0/5/130588614/404f2ba.pdf
    • http://horizonlineatelier.com/uploads/1/3/0/4/130489159/3e5d50e98f0eb40.pdf
    • http://usedhorsesaddles.com/uploads/1/3/0/6/130639802/7232780.pdf
    • http://5pointauto.com/uploads/1/3/0/2/130287727/130287727.html#acute+otitis+media+bilateral+icd+10
    • http://directly2me

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003670.bin
6a4b20e77c0d86e619e0bb2767136cab06c9a3115e9d40937cdb7341c6677e18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3670 7368 bytes

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