Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e989619a797cb3e…

MALICIOUS

PDF

48.1 KB Authoring application: Solid Converter PDF
MD5: e10926f99a8b6a33bba27b8833a7abc4 SHA-1: b5983af2f4b2144bcc6ee6f63750ee1b0affc038 SHA-256: 5e989619a797cb3e020ba48a885c156a22badda2d2ee6bb995f64ebd97eaa6fc
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF 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 and the ML classifier output further support its malicious nature. The embedded links likely serve to redirect users to malicious websites or to manipulate search engine results.

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 http://wiletu.lermind.com/uploads/2020/01/28/ab0336285e387.pdf
    • http://vividcoatings.net/uploads/1/3/0/3/130313155/resepinudoka.pdf
    • http://wisep.dotalounge.net/uploads/2020/01/28/kizalokadab.pdf
    • http://kobomvelik.alta.si/uploads/1/3/0/3/130379740/wosemi-pimesusebaduxo-bisap.pdf
    • http://junanil.artlawyer.ru/uploads/2020/01/29/tuzikabupiduw-limigifapux-nitowezegezixi-tuwireroxibe.pdf
    • http://kierstenhathcock.com/uploads/1/3/0/6/130640178/6273200.pdf
    • http://meridianspire.com/uploads/1/3/0/6/130639753/145490.pdf
    • http://petujo.kuluarpohod.ru/uploads/2020/01/27/fc4e99419c4011.pdf
    • http://schmittsanimalhospital.net/uploads/1/3/0/4/130435947/pemavumaru.pdf
    • http://newlifesocal.org/uploads/1/3/0/5/130590357/5799966.pdf
    • http://1695river.com/uploads/1/3/0/5/130543054/4441292.pdf
    • http://gixini.itechieguru.com/uploads/2020/01/29/c3426b2e45249a.pdf
    • http://theavamari.com/uploads/1/3/0/6/130604500/4405281.pdf
    • http://basicbeautybyvittoria.com/uploads/1/3/0/3/130313102/tagadex-ximufego-bunefe.pdf
    • http://vurutababi.gamings-fb.com/uploads/2020/01/28/sonanudarerabuwe.pdf
    • http://beatinghearthealth.com/uploads/1/3/0/5/130588921/kijadabolut_gerarinuki_rerujesufipexox.pdf
    • http://mundtboutique.com/uploads/1/3/0/6/130604547/kijopigetek_jazanolomi_womelojera.pdf
    • http://riversplusguiding.com/uploads/1/3/0/4/130436298/jedobunafoke_nupiva_wedabiziwip_lofitoweb.pdf
    • http://fara.huaweinew.ru/uploads/2020/01/28/c29501.pdf
    • http://walujabov.pornoizler.site/uploads/2020/01/29/856214ef736d.pdf
    • http://ral.pritrethriftshopinc.org/uploads/2020/01/27/5023c6d.pdf
    • http://allergy.mediutopia.com/uploads/1/3/0/6/130639528/130639528.html#beneteau+oceanis+350+manual
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000016b9.bin
a335a6b27767e7e875bcd251b849cbfc248a369711459e037f21c5fb3d1d83ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16B9 8424 bytes
font_01_sfnt_off0000757a.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x757A 16036 bytes

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