Malicious PDF — malware analysis report

Static analysis result for SHA-256 dac6d54396089f5d…

MALICIOUS

PDF

49.1 KB Authoring application: pstoedit
MD5: 0b33f0f96cbb1a65fbfaed72e0fb14c9 SHA-1: 50312e176e1b9228e35560ebc63caa67e5b8b9dd SHA-256: dac6d54396089f5dff1730a2cd468d6d21754391a67b56998ec2d9c534e5bd77
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, a technique often used for SEO manipulation or to host phishing pages. ClamAV identified this as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', and a machine learning classifier also flagged it with high confidence. The embedded document body text contains obfuscated content and a URL pointing to a suspicious PDF, reinforcing the phishing and malicious redirection intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://www.pureclassgeelong.com.au/uploads/1/3/0/7/130775630/xomosel-ginaxovowib-suxekilubat-boxarisapov.pdf
    • http://mjrich.net/uploads/1/3/0/2/130287428/7da49e.pdf
    • http://mitchellkim.net/uploads/1/3/0/6/130621394/noninerurad-zizogu-kutajug.pdf
    • http://theindianspringsapartments.com/uploads/1/3/0/3/130379326/1461265.pdf
    • http://derekparker.design/uploads/1/3/0/5/130550912/bajemez-pinigevanom-modonerovutaf.pdf
    • http://www.southernaznorml.org/uploads/1/3/0/8/130814121/loledojiveto.pdf
    • http://mail.toyotarally.com/uploads/1/3/0/6/130620520/8139669.pdf
    • http://teogyimesy.com/uploads/1/3/0/5/130551949/4449983.pdf
    • http://stuccovenetiano.com/uploads/1/3/0/4/130476984/5531129.pdf
    • http://beshearsconsulting.com/uploads/1/3/0/2/130289495/zigebazow.pdf
    • http://lf-ant.com/uploads/1/3/0/5/130588744/4318632.pdf
    • http://www.operationpurplepaws.org/uploads/1/3/0/5/130541004/7b5e8fde6122.pdf
    • http://www.charlieandcranes.com/uploads/1/3/0/9/130969082/wavax_semefizugi_gisovarerab.pdf
    • http://blissfulbodycreations.com/uploads/1/3/0/5/130590336/7a3bc8d.pdf
    • http://mta-sts.mail.mayoweddingcakes.com/uploads/1/3/0/2/130289589/966543.pdf
    • http://www.kirstenliston.com/uploads/1/3/0/4/130475994/cff00397.pdf
    • http://dpartphoto.com/uploads/1/3/0/2/130272591/vakumapazedo-votizubebejori-jupovomisuzixar.pdf
    • http://proserviceswi.com/uploads/1/3/0/6/130604243/bufofupiko.pdf
    • http://crazy8gardens.com/uploads/1/3/0/2/130272979/bogelipusobas.pdf
    • http://beautyonabudgetgroup.com/uploads/1/3/0/7/130775232/6493068.pdf
    • http://www.goldenstateweeds.net/uploads/1/3/0/5/130551197/pakubalivad_kusinidixiw_fimozewik.pdf
    • http://vmvconstructions.com/uploads/1/3/0/4/130479008/jamezutonosu_ragekov_zetatatumu.pdf
    • http://www.myknowlege4u.com/uploads/1/3/0/6/130621502/ziwevalezale-nevinuse-pujusaxig.pdf
    • http://74-123-79-26.mgwnet.com/uploads/1/3/0/9/130969191/130969191.html#ets+toefl+ibt+writing+samples

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010b9.bin
b877a601ef7b429df1e09cecdef3327f9e51fff5e96ea9dfc037b0158957cb67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10B9 7948 bytes

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