Malicious PDF — malware analysis report

Static analysis result for SHA-256 39cd297348aa0ad6…

MALICIOUS

PDF

71.8 KB Authoring application: Nitro PDF
MD5: 7d9c484637a0decf05ea61f9b722deec SHA-1: 0dfce65d0f61443788caf84a38449e251f2e5dbb SHA-256: 39cd297348aa0ad6bc23c6f6ac1aaeab19fd0ee0559758ba2b441f45abc81917
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This technique, identified as PDF_SEO_LINK_FARM, is commonly used to distribute phishing content or malware by leveraging SEO tactics to attract unsuspecting users. The ClamAV detection further confirms its malicious nature, classifying it as Pdf.Phishing.TtraffRobotInstall. The embedded URLs are the primary indicators of compromise, suggesting a campaign focused on redirecting users to malicious content.

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://workone.info/uploads/1/3/0/4/130436402/vawunolagesuxa.pdf
    • http://jiwu.iceworld.fun/uploads/2020/01/27/lenakifuweb.pdf
    • http://panoduj.app3pinfo.online/uploads/2020/01/29/1872306.pdf
    • http://barcelonaappartement.com/uploads/1/3/0/4/130476649/9412589.pdf
    • http://northernnevadaeyecare.com/uploads/1/3/0/5/130540664/najiwixogetajiz-kowodibeko.pdf
    • http://meter-key.com/uploads/1/3/0/3/130323554/modizutulanaxe.pdf
    • http://populair-cyber.com/uploads/2020/01/27/fadoginaniw-xasimit-gorenawapalemi.pdf
    • http://782hustle.com/uploads/1/3/0/6/130639334/8c8fee97d51.pdf
    • http://vkstickersfestival2018.online/uploads/2020/01/27/1fa50c2d0.pdf
    • http://lebanonvalleydc.com/uploads/1/3/0/5/130539188/beburux_fobulufokigekix.pdf
    • http://blackmonmarshall.com/uploads/1/3/0/4/130435638/tokijux_xizoduzanarev_veburijukomo.pdf
    • http://mylaraonline.com/uploads/1/3/0/6/130621140/05875980.pdf
    • http://heightspsychology.com/uploads/1/3/0/5/130539697/8bc032eec0b8.pdf
    • http://krgservicecorp.com/uploads/1/3/0/6/130620945/4295739.pdf
    • http://belkin.pro/uploads/2020/01/28/2779410.pdf
    • https://xudezivesufib.weebly.com/uploads/1/3/0/2/130289359/5838689.pdf
    • http://mosquesjobs.com/uploads/1/3/0/2/130289424/dijanobatagefak.pdf
    • http://nichellejensen4orem.com/uploads/1/3/0/6/130605384/87a3cbada286b29.pdf
    • http://miracleinabucket.com/uploads/1/3/0/3/130324027/130324027.html#django+template+logged+in+user

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001695.bin
3764810a79a64ec9d1c87f86fdf00381a2ac26057d9a91e9066cef13298b97d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1695 10068 bytes

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