Malicious PDF — malware analysis report

Static analysis result for SHA-256 92145575326456eb…

MALICIOUS

PDF

38.1 KB Authoring application: Smallpdf Desktop
MD5: 38a6d84bceedaafb9ef4911de57baad1 SHA-1: 1e680773df89cf98101d05665b82ccd7a0ce69fd SHA-256: 92145575326456eb1f2698bd0b2c0a093bf8a67f8570278cecfe885893079596
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged by multiple heuristics, including ClamAV and an ML classifier, for being malicious and containing a link farm. The embedded URLs, totaling 23, are likely part of a phishing or malware distribution scheme. The document body contains garbled text, suggesting it's not intended for human readability but rather to host malicious links.

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://logazitutepum.weebly.com/uploads/1/3/0/4/130435659/lemasasidosiba-vijulipumiwapu-mutebepun-bolakipaparutam.pdf
    • http://gokizose.id7me.net/uploads/2020/01/27/7482197.pdf
    • https://jifafave.weebly.com/uploads/1/3/0/5/130551185/lekijalo_povaribi_pojixenevugu_fidominow.pdf
    • http://xitoton.fabrika-perchatok.com/uploads/2020/01/28/54f67f3bfad55e.pdf
    • http://luro.metiztorg.net/uploads/2020/01/27/2c5d285b77d042.pdf
    • http://nevabo.betsmakers.xyz/uploads/2020/01/27/kisazexarikojuvela.pdf
    • http://rosvostorg.ru/uploads/2020/01/27/fowobifa.pdf
    • http://motowawa.kitai-journal.ru/uploads/2020/01/28/puposujarisugo.pdf
    • https://vabinazuwanino.weebly.com/uploads/1/3/0/4/130436125/2768211.pdf
    • http://tolorip.laritelle.info/uploads/2020/01/28/a27fb63e437.pdf
    • https://buzuripem.weebly.com/uploads/1/3/0/5/130588222/9477781.pdf
    • http://sageysartsanddreams.com/uploads/2020/01/27/pebotamubus-finoso-karakixadudo-wemexe.pdf
    • http://vobazul.rugbyspb.ru/uploads/2020/01/28/3601269.pdf
    • http://buvo.djpschool.com/uploads/2020/01/28/2812762.pdf
    • http://javafuve.dream-boxxx.ru/uploads/2020/01/28/1524652.pdf
    • https://jixitewilogovuv.weebly.com/uploads/1/3/0/4/130435955/8063453.pdf
    • http://gile.toptenanketa.ru/uploads/2020/01/28/e9304.pdf
    • https://seripejivuvelo.weebly.com/uploads/1/3/0/4/130477234/kogisepota.pdf
    • http://kebuwa.factandi.tech/uploads/2020/01/27/280115.pdf
    • http://duguroba.dalibrew.com/uploads/2020/01/28/1908978.pdf
    • http://rmc-metall.ru/uploads/2020/01/27/3753054.pdf
    • http://mulek.notaorg.ru/uploads/2020/01/28/4873141.pdf
    • http://giperfile.fun/uploads/2020/01/28/9932922.pdf
    • https://morarafaf.weebly.com/uploads/1/3/0/5/130590224/130590224.html#why+do+unsaturated+fatty+acids+have+lower+melting+points+than+saturated
    • http://kebuwa.factand

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000016dc.bin
55dba6c328ad9aa3744541406b269e4dbeac0df2750d3c0e503b8f04afd401c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16DC 7700 bytes

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