Malicious PDF — malware analysis report

Static analysis result for SHA-256 240c0716225a5545…

MALICIOUS

PDF

38.0 KB Authoring application: OpenOffice Draw
MD5: 0d6a15fc355ebff82250fbb668b9ee02 SHA-1: 75f51676109ea359a3b24dda3aec4ccc043d9931 SHA-256: 240c0716225a554547dcb755b29c94762c0ad69fec03a39a4b9fc699783de9a3
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 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 spam or to distribute malicious payloads. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URLs are the primary indicators of compromise, suggesting a redirection or download scheme.

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://chaplainkelly.com/uploads/1/3/0/6/130603773/zamuvofatoxije-xivabobe-puporudo-safafu.pdf
    • http://mrkdenton.com/uploads/1/3/0/5/130551267/pokiburaraxipov.pdf
    • http://jatokune.asdhqwas.icu/uploads/2020/01/28/supaweniraxub_jirubenuna_bonupuvoma.pdf
    • https://nekumide.weebly.com/uploads/1/3/0/2/130273788/koruximekel.pdf
    • http://koka.vpalatke.pro/uploads/2020/01/27/2875291.pdf
    • http://safiasclothing.com/uploads/1/3/0/6/130620679/winulefotabijap-tolasedexeju-jakuwijaximemi-jadutuzofe.pdf
    • http://agingwell360.com/uploads/1/3/0/6/130621233/9e9dd47a83d.pdf
    • https://buxixarewazukir.weebly.com/uploads/1/3/0/4/130476691/cbef7a4ee.pdf
    • http://scottbrackenridgebuilders.co.nz/uploads/1/3/0/3/130313471/8464303.pdf
    • http://orlandofelixphotography.com/uploads/2020/01/28/jodiriletesumi.pdf
    • http://ruve.kickfastservice.online/uploads/2020/01/27/vexako.pdf
    • http://surereachexpress.com/uploads/1/3/0/6/130603873/vaxifozu.pdf
    • http://remontbroker.ru/uploads/2020/01/28/1eec6bf6462f.pdf
    • http://customerwise.co/uploads/1/3/0/6/130639228/basifogigag.pdf
    • http://rebeccalaplacaattia.com/uploads/1/3/0/3/130379219/130379219.html#calendario+escolar+asturias+2019+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000148b.bin
a9faf3d99d793b139220a1057f22348120a26c5682be5dabfa809e0617351c49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x148B 10128 bytes

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