Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e8fc48dc02c5030…

MALICIOUS

PDF

40.6 KB Authoring application: QPDF
MD5: 3eba0b9a7d69339b39104ab7a060d629 SHA-1: f270b382c19be45af965f64a0cd8b0fcae9886b3 SHA-256: 3e8fc48dc02c503006af347ed881f2b74f2f8235c098b32b0133c86ac718fa86
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious classification. The embedded URLs are likely used to redirect users to phishing sites or to distribute further malware. The document body content is heavily obfuscated and does not provide clear user-facing text.

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://schetovodstvo.weebly.com/uploads/1/3/0/5/130551015/muroledi_muvefujilo_vuder_gavominopipirer.pdf
    • http://wannarun.com/uploads/1/3/0/6/130621193/zupuwaji_kuxegibovisat_noxef.pdf
    • http://bcssummerlanguagecamp.com/uploads/1/3/0/4/130435589/1183352.pdf
    • http://readytomexico.com/uploads/1/3/0/7/130738889/voripuzojapanul_velevajep_tizominalixur_dejawawosa.pdf
    • http://dapulo.good-power.ru/uploads/2020/01/29/1601964.pdf
    • http://fuf.copyrightcontact-1000005296384.com/uploads/2020/01/28/901a5.pdf
    • http://contractlawtraining.com/uploads/1/3/0/5/130551140/6490523.pdf
    • https://gazemabunaduvi.weebly.com/uploads/1/3/0/5/130550744/mobibod.pdf
    • http://stehly2020.org/uploads/1/3/0/7/130739883/2694392.pdf
    • http://802eltororoad.com/uploads/1/3/0/4/130483407/rasotojurigojen.pdf
    • http://mibaccountants.com/uploads/1/3/0/5/130588747/zasevenobeme-turumemu-subavixi-vanereroxu.pdf
    • http://sullivanwoodart.com/uploads/1/3/0/5/130543156/lulukosonipafamale.pdf
    • http://channelingthelight.com/uploads/1/3/0/2/130289625/zikoriwowusesav.pdf
    • http://denvermetroprotocols.com/uploads/1/3/0/4/130436513/3e9c10c2f7.pdf
    • http://riddlesofgod.com/uploads/1/3/0/2/130289565/aada358cbb3574b.pdf
    • http://xasi.rosvostorg.ru/uploads/2020/01/29/tafelebajiroga.pdf
    • http://tieagele.com/uploads/1/3/0/3/130313638/8029899.pdf
    • https://zexupimifosirof.weebly.com/uploads/1/3/0/5/130543476/zetutam.pdf
    • http://sweetsadiesdoggieboutiqueonline.com/uploads/1/3/0/6/130604549/zujovadezalegenotif.pdf
    • http://binnachtees.com/uploads/1/3/0/5/130551402/lotufuvuxidupugewop.pdf
    • http://iweargreatness.com/uploads/1/3/0/8/130814342/130814342.html#adobe+photoshop+7.0+3d+text+tutorial

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003dfe.bin
f6f79eb250963ef9cf1e3abf1c9e02ee2917d6710e9395c1b9ee49eca4407781		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3DFE 8300 bytes

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