Malicious PDF — malware analysis report

Static analysis result for SHA-256 13c0f2852f96dd20…

MALICIOUS

PDF

52.0 KB Authoring application: Serif PagePlus
MD5: ae1dc22d5a81e5a069b35b0f398e2b42 SHA-1: 0c5c1d06dbd6125cee6dfb6ba7b0ac10d8641531 SHA-256: 13c0f2852f96dd2009a7bad62e80d84ff35a3e011373f8e3909ff64baadee65c
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded external links, as detected by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or content distribution strategy. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious intent, likely related to phishing or traffic redirection. No scripts were extracted, but the sheer volume of external links indicates a coordinated effort to direct users to potentially malicious or SEO-manipulated content.

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 https://wuvolenixe.weebly.com/uploads/1/3/0/5/130590474/naraxuvibezelaj-xujowaterozowil-sapowidaxunej-vikakorodozeset.pdf
    • http://addha.top/uploads/2020/01/29/6055425.pdf
    • http://orderfromchaos.blog/uploads/1/3/0/4/130435611/gosunowadowano.pdf
    • http://perfectmatchjewellery.weebly.com/uploads/1/3/0/5/130588957/waviwewejolaj-fifomefur.pdf
    • http://mugafeken.gkmosolov.ru/uploads/2020/01/29/d3415.pdf
    • http://vanijede.amcsnab.ru/uploads/2020/01/27/gukibosamotifi-maxupetubumisa-lemovakas.pdf
    • https://wonosowozole.weebly.com/uploads/1/3/0/4/130483447/5440398.pdf
    • http://pibu.secludeddating.com/uploads/2020/01/28/siwipadubepijovog.pdf
    • http://richardson-community-psychology.com/uploads/1/3/0/2/130289719/jedositivuwadab-jetune.pdf
    • http://shop-for-me.online/uploads/2020/01/28/1238425.pdf
    • http://gogusijeto.zavod-tseh.ru/uploads/2020/01/27/dategirukuwezumuxu.pdf
    • http://podollangpis.devsite-1.com/uploads/1/3/0/5/130551184/130551184.html#x+ray+diffraction+pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.adobe.com/).Noto
    • http://www.google.com/get/noto/http://www.adobe.com/type/This
    • http://scripts.sil.org/OFLNoto
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicense

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001373.bin
fd880fd29b39595989cf65050cb1131a3c8e77fecf35dd98f3873e051be45089		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1373 8544 bytes
font_01_sfnt_off000080ae.bin
92960e0e807263a12bad55ec69bafb6714c32758af60e957fa6a07630d5d1445		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80AE 4156 bytes
font_02_sfnt_off00008d63.bin
404ab0875d784d2c4dade9aeb72ed893c0494d9f3d186c19cd456ab337a153e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D63 3612 bytes

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