Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2890203bb00fc59…

MALICIOUS

PDF

38.5 KB Authoring application: Mobipocket Creator
MD5: fe164e2642a49b473bfc947dd1439744 SHA-1: 715c43b773244607d9b22c38b1ac52257828f381 SHA-256: c2890203bb00fc59e7c3e25447f9cdb315317b7a8d30a3dbc590d54700b68bb7
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious payloads. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious distribution intent. No scripts were extracted from this sample, and the document body text is largely unreadable due to encoding issues, but the heuristic firings and URL list are sufficient to assess the attack pattern.

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://meerreport.net/uploads/1/3/0/5/130543169/xamepeb.pdf
    • http://mta-sts.mail.churchesinmissions.org/uploads/1/3/0/4/130476440/6942014505ca.pdf
    • http://mckinneytechsolutions.net/uploads/1/3/0/4/130483386/81f7e3e0b56.pdf
    • http://nadzorybudowlane-arles.pl/uploads/1/3/0/6/130605517/a97b5500daf9.pdf
    • http://timothysmithactor.com/uploads/1/3/0/5/130588286/nurenorexuxom-xesemiretoj-dozugovagit.pdf
    • http://domingobenakbar.com/uploads/1/3/0/4/130476013/4505406.pdf
    • http://fundynutritionconsulting.com/uploads/1/3/0/5/130545733/temeko.pdf
    • http://niram.com/uploads/1/3/0/7/130775784/1375456.pdf
    • http://abrushwithnature.studio/uploads/1/3/0/6/130621132/jezurub.pdf
    • http://ellakramer.com/uploads/1/3/0/6/130639753/pogudafodekoke.pdf
    • http://votomatic.org/uploads/1/3/0/6/130620720/3deb7bd190c.pdf
    • http://ipraymovement.com/uploads/1/3/0/5/130589219/1325892.pdf
    • http://tren.net/uploads/1/3/0/8/130874055/fasowokekewalan_feduzo.pdf
    • http://purpleshirts.net/uploads/1/3/0/7/130775347/rekowamekugu.pdf
    • http://www.piute-high-school.com/uploads/1/3/0/4/130483869/4960197.pdf
    • http://lowertechnology.com/uploads/1/3/0/2/130274282/wejof.pdf
    • http://spot-on-editorial.com/uploads/1/3/0/8/130814460/1373529.pdf
    • http://keysystemtechnology.info/uploads/1/3/0/7/130775866/4488845.pdf
    • http://thoughtjotsmemobooks.com/uploads/1/3/0/5/130590371/ganizadaduzova.pdf
    • http://mycrossworldsjourney.com/uploads/1/3/0/6/130621257/5765be.pdf
    • http://mikewilbanks.com/uploads/1/3/0/7/130739463/5810887.pdf
    • http://rooseveltconservancy.org/uploads/1/3/0/6/130639634/1985318.pdf
    • http://alicevonlindenau.com/uploads/1/3/0/6/130620293/1649967.pdf
    • http://natasha-ford.pleasingfood.com/uploads/1/3/0/5/130543453/130543453.html#hearing+anatomy+physiology+and+disorders+of+the+auditory+system
    • http://keysystemtechnology.i

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003281.bin
e44a0a78f78ec223fecddd13d0af0d5a9162a0135d1ab77c0f13e9dcece7eaeb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3281 8452 bytes

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