Malicious PDF — malware analysis report

Static analysis result for SHA-256 184e47e39dd9375f…

MALICIOUS

PDF

47.7 KB Authoring application: GIMP
MD5: 497f179a3ae6933c0ae7887c90528dcf SHA-1: 76724a6fc03d280aac5c092dcd9f2632031bfee1 SHA-256: 184e47e39dd9375f82ab521b1fa1157ab3ce5f1c5e2673152014f19f728c6622
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files hosted on various domains, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a tactic to manipulate search engine results or distribute additional malicious content. The ClamAV detection and ML classifier further confirm its malicious nature, likely related to phishing or malware distribution.

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://camalitv.info/uploads/1/3/0/4/130476272/2801b6484de17f.pdf
    • http://breakingchains.co.za/uploads/1/3/0/7/130775231/gexabubusidife.pdf
    • http://www.betagirllillyb.com/uploads/1/3/0/8/130874669/4c8265e848af2.pdf
    • http://changeintransition.com/uploads/1/3/0/7/130774981/worulidu.pdf
    • http://gilpinenterprises.com/uploads/1/3/0/6/130620728/127712.pdf
    • http://www.dirtyexpressionist.com/uploads/1/3/0/4/130488100/d314a.pdf
    • http://almostathirdgrader.com/uploads/1/3/0/5/130588789/xadidogumexa-wozesexoladekob-zurog-kuluvitoxunap.pdf
    • http://yvelina.se/uploads/1/3/0/3/130379087/798831.pdf
    • http://energykim.com/uploads/1/3/0/7/130775825/kuzotoxo.pdf
    • http://usbsfund.com/uploads/1/3/0/6/130620646/jumofepikafapaf.pdf
    • http://50thanniversarycelebration.com/uploads/1/3/0/7/130739802/a1cee.pdf
    • http://precisionfashioninstruments.com/uploads/1/3/0/2/130270874/givus.pdf
    • http://hostmaster.dudleysafes.com/uploads/1/3/0/4/130435712/pomareduxonuwosu.pdf
    • http://wkerwin.com/uploads/1/3/0/2/130289448/sapimosi.pdf
    • http://www.hannahrosecluley.co.uk/uploads/1/3/0/5/130545733/2911843.pdf
    • http://autodiscover.southgwinnettfootball.com/uploads/1/3/0/8/130814178/fowupesomaku-lemivagabekese-logixanan.pdf
    • http://www.newgrad.co.uk/uploads/1/3/0/7/130738697/5210649.pdf
    • http://bf.eliteedu.org/uploads/1/3/0/7/130740062/6581321.pdf
    • http://photos.rosebridges.com/uploads/1/3/0/6/130620578/8978e4.pdf
    • http://trapave.club/uploads/1/3/0/2/130289346/zabazizot_nogowitove.pdf
    • http://at-riskteen.com/uploads/1/3/0/7/130775589/lozadev-dixix.pdf
    • http://ductcleaningdc.com/uploads/1/3/0/6/130605504/130605504.html#convert+protected+pdf+to+word+document
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004265.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4265 16036 bytes
font_01_sfnt_off000059b6.bin
a9b84bcea97e499e43584470a70ec06376dc33a8bb5ceaca2312d7e0a25d03e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59B6 8200 bytes

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