Malicious PDF — malware analysis report

Static analysis result for SHA-256 21ddd49ccf9d4e9d…

MALICIOUS

PDF

33.2 KB Authoring application: Karbon
MD5: 485f02a94b02788d860f8b62ac07b04d SHA-1: a1de63daaf1bfb49e5f47526c9178ee245727b84 SHA-256: 21ddd49ccf9d4e9daef5397201a7eff87197919a613c3c7264f4c438cda46953
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file exhibits characteristics of a link farm, embedding numerous URLs that point to other PDF documents. This technique is often used for SEO manipulation or to distribute malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent, likely related to phishing or traffic redirection. No scripts were extracted from this sample, limiting the analysis of direct execution capabilities.

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://clarionbobcatfootball.com/uploads/1/3/0/4/130488092/1146517.pdf
    • http://uvirtualcare.com/uploads/1/3/0/3/130323423/7988120.pdf
    • http://mrbrushgrade5.ca/uploads/1/3/0/4/130483418/5c332669b32.pdf
    • http://aquariusfunding.com/uploads/1/3/0/6/130620283/monijuv-jakulumev.pdf
    • http://tradingpinshub.com/uploads/1/3/0/6/130640091/058ef59ff97.pdf
    • http://amazonpropertymanagement.us/uploads/1/3/0/6/130621587/geraz.pdf
    • http://blindsquirrelcreativedesign.com/uploads/1/3/0/4/130489172/2039733.pdf
    • http://freestyleseniors.com/uploads/1/3/0/5/130539728/jesivesalivo.pdf
    • http://naturalworld.club/uploads/1/3/0/4/130489001/65159692f90e5d9.pdf
    • http://kevinbibeault.com/uploads/1/3/0/4/130477249/vatonijabosolejodug.pdf
    • http://arbitech.space/uploads/1/3/0/7/130776031/lanov.pdf
    • http://morrowtimes.com/uploads/1/3/0/2/130289775/juxifobafamu_beridubukomed_zusaxifedobu.pdf
    • http://newxmastraditions.com/uploads/1/3/0/4/130476221/varipojejata_kupizetiwog_fotukiretodul_gusozegurebola.pdf
    • http://airbreather.net/uploads/1/3/0/4/130488412/4287786.pdf
    • http://testsite.online/uploads/1/3/0/6/130639845/semejajudeluwoxoxula.pdf
    • http://oneclickphotographer.com/uploads/1/3/0/5/130545573/togupaga-fazejefi-zemavowasigiku-batubafu.pdf
    • http://cluedetectivepuzzleagency.life/uploads/1/3/0/2/130289756/xapakasijirevo_kukupugored_xijagilanobunal.pdf
    • http://abetterwaytobreathe.com/uploads/1/3/0/6/130604538/162831.pdf
    • http://www.barefootathletictraining.com/uploads/1/3/0/7/130740553/3944504.pdf
    • http://www.curtainwall.com.ph/uploads/1/3/0/2/130273761/linilolukif_zozomutipanufa_dobadawulonijep_xewarirewuwedij.pdf
    • http://bradleyrobybowl.com/uploads/1/3/0/8/130813692/7897174.pdf
    • http://www.myultimahomes.com/uploads/1/3/0/6/130639540/6addf9.pdf
    • http://host71.carmichaelnl.com/uploads/1/3/0/7/130738972/130738972.html#solving+log+and+exponential+equations+worksheet

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001fa1.bin
03a5d4a9958d724422719afc5599d544edf53c77cc6c066cd35de44de101f250		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1FA1 7776 bytes

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