Malicious PDF — malware analysis report

Static analysis result for SHA-256 5eab7c2332e38dac…

MALICIOUS

PDF

51.1 KB Authoring application: PDFedit
MD5: e28fb03a4488c3e12690308dcb12044f SHA-1: 3bc06646dfa40e9adc3effd959798980c28e4166 SHA-256: 5eab7c2332e38dac9617ff2c811a7490ea247edafd1ec0ae931a72328a03343f
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, suggesting a phishing or SEO spam campaign. The ML classifier and ClamAV detection further support its malicious nature, flagging it as phishing related. While no scripts were explicitly extracted, the embedded URLs are the primary indicators of malicious activity, likely leading to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://rosstelekom.pro/uploads/2020/01/27/8581282.pdf
    • http://memesovergenes.com/uploads/1/3/0/6/130621908/9505949.pdf
    • http://abbymenagerie.com/uploads/1/3/0/3/130313391/loxanojemabaxox_rikowexaziwi.pdf
    • http://gog.cosmos-studio.ru/uploads/2020/01/28/615d9838.pdf
    • http://njstrengthcamp.com/uploads/1/3/0/6/130621180/xawuwexoxumago.pdf
    • http://fliphousesnotburgers.info/uploads/1/3/0/2/130272485/wisutolobogubek.pdf
    • http://xogikoka.stmcgroup.com/uploads/2020/01/28/totijun.pdf
    • http://apgtechllc.com/uploads/1/3/0/6/130620804/kekaxefuvezaxufixo.pdf
    • http://waweru.cns-news.com/uploads/2020/01/29/dexotatap-gerewebapi-suruxago-tetag.pdf
    • http://miami-mobile-window-tinting.weebly.com/uploads/1/3/0/6/130620382/kugedarebazisamutupo.pdf
    • http://jarakaxu.xofls.xyz/uploads/2020/01/27/1362737.pdf
    • http://linwoodparkhomes.com/uploads/1/3/0/5/130590366/joresifowapepofifo.pdf
    • http://jupu.marusyatour.ru/uploads/2020/01/28/da4b23ec0673fe1.pdf
    • https://kufigiwelixovu.weebly.com/uploads/1/3/0/5/130539516/tefufexojagojiwefi.pdf
    • http://mukeleji.1medvrn.ru/uploads/2020/01/28/25a0507f364ce9.pdf
    • http://aberdeenlatinschool.com/uploads/1/3/0/6/130603859/nanogebevabekupetat.pdf
    • https://sugikojoti.weebly.com/uploads/1/3/0/2/130289458/gugobi_vagawaro_butil.pdf
    • http://globalgirleats.com/uploads/1/3/0/4/130483989/ritunulo.pdf
    • http://dizaw.severnypark.ru/uploads/2020/01/27/rupekeze-domopazatedera-fevak-lolederisi.pdf
    • https://kawiranozisu.weebly.com/uploads/1/3/0/2/130272414/wajipuxijome_gesirudabede_vuvuwe.pdf
    • http://pibibujo.aseralle.me/uploads/2020/01/27/gewuvota.pdf
    • http://zoeboucher.com/uploads/1/3/0/4/130435978/3b7c49d1fb5b.pdf
    • http://kcareerandlifecoaching.com/uploads/1/3/0/4/130435701/6941114.pdf
    • http://promisewed.com/uploads/1/3/0/5/130589316/130589316.html#pyrogen+and+endotoxin+testing+questions+and+answers

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001251.bin
9375547b480c5f9718039a3d404d0044c29b623c2476824f021b7d699ccbacc5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1251 8080 bytes

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