Malicious PDF — malware analysis report

Static analysis result for SHA-256 3892e82c8c9777d7…

MALICIOUS

PDF

38.3 KB Authoring application: PDFedit
MD5: c6c98917a7049f1d1270bc0a88fdf5c1 SHA-1: 509e3450a0df947ae87be4b6e6946460849f890f SHA-256: 3892e82c8c9777d74c9a7dba329481ed681a6a5f12e822c8a9a71d7cb895a1b0
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files hosted on various domains, a technique often used for SEO poisoning or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent. The document body appears to be corrupted or heavily obfuscated, preventing a detailed analysis of its specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://sweetsbykay.com/uploads/1/3/0/5/130551144/nadiruguzifevajizuki.pdf
    • http://sundancedebtpartners.com/uploads/1/3/0/6/130603975/fenifim-numuzisafaf-kalebabi.pdf
    • http://andyanddenise.com/uploads/1/3/0/4/130435850/sapixado.pdf
    • http://www.lendobuttons.com/uploads/1/3/0/4/130489367/3504527.pdf
    • http://tadoner.store/uploads/1/3/0/6/130620928/613362.pdf
    • http://zappophotography.com/uploads/1/3/0/4/130483810/c0827a66f4976d.pdf
    • http://mylioness.com/uploads/1/3/0/2/130272976/vaxotewen_dusekiv.pdf
    • http://alexandriasday.com/uploads/1/3/0/7/130775923/badagufixaronaxox.pdf
    • http://cbcsomerset.com/uploads/1/3/0/4/130483279/zalula-wukodu-xodameze.pdf
    • http://charlydigital.org/uploads/1/3/0/7/130739837/xasatajur.pdf
    • http://missionfieldnebraska.net/uploads/1/3/0/7/130775939/vonimim.pdf
    • http://ohdearsboutique.com/uploads/1/3/0/3/130313582/doralo.pdf
    • http://theenchantedoakmi.com/uploads/1/3/0/2/130287871/d3c05.pdf
    • http://magicaladventurestravelbystacy.com/uploads/1/3/0/4/130435791/mutagidu.pdf
    • http://rogersbellappleiphonereadreceiptssamsung.com/uploads/1/3/0/4/130489144/4385b2a.pdf
    • http://elevateinsightla.com/uploads/1/3/0/7/130739595/lawesipuze-pumor.pdf
    • http://carlocornelli.com/uploads/1/3/0/5/130547078/c6847e5c.pdf
    • http://contractor-exam.mobi/uploads/1/3/0/4/130435902/rebetopifi_jorokiseneko.pdf
    • http://ctcommunications.com/uploads/1/3/0/4/130436197/nugibopemotiva-weretezekozubar.pdf
    • http://collabassist.com/uploads/1/3/0/4/130488700/zoxovojiginu.pdf
    • http://mesquitesitting.com/uploads/1/3/0/4/130476122/9585994.pdf
    • http://www.glamkings.com/uploads/1/3/0/8/130814830/d2ca750416.pdf
    • http://designguard.us/uploads/1/3/0/2/130271061/waxef-malivusox.pdf
    • http://www.globallogicprogrames.com/uploads/1/3/0/4/130483583/130483583.html#eustachian+tube+dysfunction+treatment+mayo+clinic
    • http://sweetsbykay.com/uploads/1/3/0/5

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000033dd.bin
f68e2efb886a6e3b1dbbe08b3e67769e3963b2c8bed43283068d107d00dcfa88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x33DD 7676 bytes

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