Malicious PDF — malware analysis report

Static analysis result for SHA-256 52346db2bad8f4d5…

MALICIOUS

PDF

37.6 KB Authoring application: Soda PDF
MD5: b97338ea85742f787457e1f9c482b947 SHA-1: 4b027b3ec7f622dfc4a8027b9301a32a7c742199 SHA-256: 52346db2bad8f4d5b16f8bc71ba32e1eabebd2422b57208f3799ebdf92b6b220
160 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1059.003 Windows Command Shell

The PDF file contains a large number of external links, many of which point to other PDF files, suggesting a link farm for SEO or traffic redirection. The document body presents a fake error message, instructing the user to press Win+R or paste a command, which is a known social engineering technique (ClickFix) to bypass macro restrictions and trick users into executing malicious commands. The ClamAV detection further confirms its malicious nature, classifying it as a phishing/trojan downloader.

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
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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://cpljohnstalvey.com/uploads/1/3/0/7/130775247/7a794bfdfaee5a.pdf
    • http://theheartconnectiontolearning.org/uploads/1/3/0/3/130379386/970d95a7c.pdf
    • http://www.orangecountyautobarn.com/uploads/1/3/0/5/130588444/jibinabiw.pdf
    • http://mondokdentalmexico.com/uploads/1/3/0/2/130288551/36693.pdf
    • http://minimalteacher.com/uploads/1/3/0/6/130639099/sozidute-wixavawu-jofuzawuvov-lojunejumapatod.pdf
    • http://jibarra.trienekens.es/uploads/1/3/0/3/130312952/3094446.pdf
    • http://www.zonduanalytical.co.za/uploads/1/3/0/3/130323319/gogudilisured-zarizozapana-wesegudigute.pdf
    • http://miscellaneous-music.com/uploads/1/3/0/2/130289655/7509012.pdf
    • http://maliciousprosecution.net/uploads/1/3/0/8/130813797/6690104.pdf
    • http://mapleleafmarketing.ca/uploads/1/3/0/7/130776159/5721650.pdf
    • http://www.nikkiheyder.com/uploads/1/3/0/4/130476586/513ecd850c22.pdf
    • http://telos.studio/uploads/1/3/0/4/130483253/jufibudesimovositoto.pdf
    • http://lizardkingmedia.net/uploads/1/3/0/7/130776655/0492c232034629.pdf
    • http://www.igclegal.com/uploads/1/3/0/6/130603860/rimalavateto.pdf
    • http://redneckridgeriders.com/uploads/1/3/0/4/130483285/lerebogo.pdf
    • http://www.thefiftyjackson.com/uploads/1/3/0/8/130874347/0ca3e797e.pdf
    • http://willrmccarthy.com/uploads/1/3/0/2/130287284/fanopafeziduzo_rujaker.pdf
    • http://skylinedc.org/uploads/1/3/0/4/130490053/9936575.pdf
    • http://bakersfieldbirthnetwork.com/uploads/1/3/0/6/130620224/4abd0.pdf
    • http://itfacilities.net/uploads/1/3/0/4/130479350/konifu_wojuvodezikozop_dopokojajisukis.pdf
    • http://moonlightmods.com/uploads/1/3/0/5/130540176/6ba03.pdf
    • http://owenmuirmd.com/uploads/1/3/0/4/130475979/rujefaxitobede_xiluxelanave_wesodemimufo.pdf
    • http://badgeyourclassroom.com/uploads/1/3/0/7/130738764/bb663e27d3ea7.pdf
    • http://leanneeverettphotography.com/uploads/1/3/0/5/130550743/7052664.pdf
    • http://adsl-63-204-18-58.benefitplans.org/uploads/1/3/0/4/130488509/130488509.html#find+adobe+acrobat+2017+serial+number+in+registry
    • http://skylinedc.org/uploads/1/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003032.bin
de7ac0ecbc60ea4a0975efa235658efc914a2099d38dc0bdf2e0330446a47e09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3032 7532 bytes

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