Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b259432126dbe14…

MALICIOUS

PDF

47.2 KB Authoring application: GIMP
MD5: 4eb4f78ca59893ab1c356e0a0dd71c0f SHA-1: ea2fcd220cd4e84e7daffe5359570348904bfb21 SHA-256: 7b259432126dbe1474ef106b0048174767f08fe04298615fb31551ae17da5f5d
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of links to external PDF files hosted on various domains, indicating a link farm or phishing campaign. The ClamAV detection and ML classifier strongly suggest malicious intent. While no scripts were explicitly extracted, the structure and numerous external links point towards a malicious document designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://trindesigns.com/uploads/1/3/0/3/130379179/nokikunevedagaw_gitemug_wawaxeliwobiwit.pdf
    • http://xxx666xxx.site/uploads/1/3/0/7/130775011/turebutizujipir_sagural_jirit_panedobofe.pdf
    • http://miguelcbt.com/uploads/1/3/0/5/130588237/427675.pdf
    • http://www.anger-management-coach.com/uploads/1/3/0/6/130639448/c36be.pdf
    • http://chicotranslations.com/uploads/1/3/0/3/130379175/tuvezikunoxodatudoga.pdf
    • http://getsocialfied.com/uploads/1/3/0/6/130604708/5a2ad4b4999bf6.pdf
    • http://anastaciorivera.com/uploads/1/3/0/6/130620843/bawukutedoxaleg_beguzavugijig_kidajatoboge.pdf
    • http://executiverecruiters.com/uploads/1/3/0/6/130621548/87c06.pdf
    • http://www.torustrade.co.uk/uploads/1/3/0/5/130540461/pevixedinamijuxazeka.pdf
    • http://staging.savetheave.org/uploads/1/3/0/3/130379597/fepowon.pdf
    • http://www.waytobe.net/uploads/1/3/0/5/130550857/zidij-xowodeze-jesujafimozaj.pdf
    • http://goldpriceweb.com/uploads/1/3/0/6/130639905/dc55b1ad25a652.pdf
    • http://bikeworthy.com/uploads/1/3/0/4/130476485/78521a.pdf
    • http://wanderlustradio.com/uploads/1/3/0/7/130776852/1aabb17002c13.pdf
    • http://rogersbellappleiphonereadreceiptssamsung.com/uploads/1/3/0/5/130588605/nelositoberijud.pdf
    • http://mta-sts.mail.epc-pcusa.org/uploads/1/3/0/6/130620695/2930386.pdf
    • http://chicagoadministrativehearingslawyer.com/uploads/1/3/0/3/130313378/ligesexibofarix.pdf
    • http://branchlutheranschoolshaiti.net/uploads/1/3/0/3/130379232/jubot.pdf
    • http://www.naturalnubians.com/uploads/1/3/0/6/130603814/votewodobav.pdf
    • http://phonzup.net/uploads/1/3/0/5/130588527/jiguxevitewosagapeg.pdf
    • http://houstonsynchrostars.org/uploads/1/3/0/9/130969659/welamu_jobukagijanuwo.pdf
    • http://mmjbookkeeper.com/uploads/1/3/0/2/130274291/zivutig_ritoxomidubibu_sademiwumurosa_zapexofeni.pdf
    • http://legendarypowerrangers.com/uploads/1/3/0/6/130639333/kanafave_putugidegege.pdf
    • http://hifuckers.com/uploads/1/3/0/4/130479435/kebisezimefivagab.pdf
    • http://www.restaurant-lindenberg.ch/uploads/1/3/0/5/130551378/8987016.pdf
    • http://marlayparktipsters.com/uploads/1/3/0/4/130483860/130483860.html#low+iodine+in+pregnancy

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000052f2.bin
08a2b6e51bf4e7fbcb5741918a603685f87c1d9f48aa6729a1d078cc19c601fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52F2 8260 bytes

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