Malicious PDF — malware analysis report

Static analysis result for SHA-256 10ad4099b7f3fc28…

MALICIOUS

PDF

41.4 KB Authoring application: Pdftk First seen: 2020-07-02
MD5: b2d532185a1af284b1aa83407c0c3e5b SHA-1: 21412c6e3ac201a3723f246d3b65a43bd8dc66a9 SHA-256: 10ad4099b7f3fc28c5c8ad5348b8ecadb0a7a09924a9f59f92f4c0507d0e6c57
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded URLs, identified as a link farm, which is a common technique for distributing malicious content or conducting phishing attacks. ClamAV detection and ML classification further support its malicious nature. The presence of numerous external links suggests an attempt to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://tigerstonegroup.com/uploads/1/3/0/2/130291531/lukepu-ravujobabobi-gusudegojixete.pdf In PDF document text
    • http://brentdiggs.info/uploads/1/3/0/2/130288301/ralusarujukadukuma.pdfIn PDF document text
    • http://my-honey-badger.com/uploads/1/3/0/6/130640013/zixabe.pdfIn PDF document text
    • http://just-plane.com/uploads/1/3/0/4/130476205/pesofawidero-kakibapofezo.pdfIn PDF document text
    • http://motionzone.org/uploads/1/3/0/7/130740444/52028dbd2f14c.pdfIn PDF document text
    • http://illuminaramericas.com/uploads/1/3/0/7/130738919/2582710.pdfIn PDF document text
    • http://adrianadziedzic.com/uploads/1/3/0/2/130274024/5954321.pdfIn PDF document text
    • http://moncrieffekallai.org/uploads/1/3/0/7/130776416/d6dd88444b.pdfIn PDF document text
    • http://queenalexandra78ave.com/uploads/1/3/0/6/130604528/3032842.pdfIn PDF document text
    • http://letterpresssaltlake.com/uploads/1/3/0/4/130488974/b740e9d88d6dc3.pdfIn PDF document text
    • http://domoliseo.com/uploads/1/3/0/6/130605133/gazasokozavukidejaji.pdfIn PDF document text
    • http://amberbeuthien.com/uploads/1/3/0/4/130435715/5941139.pdfIn PDF document text
    • http://empowerhomeautomation.com.au/uploads/1/3/0/6/130604375/dofasej_pezisufalow_jigani_jigerukorevax.pdfIn PDF document text
    • http://pastmaster.org/uploads/1/3/0/5/130543757/jimuma.pdfIn PDF document text
    • http://cbenedict.com/uploads/1/3/0/5/130588762/4858363.pdfIn PDF document text
    • http://miamfoundation.com/uploads/1/3/0/3/130313504/tuvitutulepu.pdfIn PDF document text
    • http://mobilephlebotomynorthcarolina.com/uploads/1/3/0/2/130270752/zasogegaxinexe.pdfIn PDF document text
    • http://chaiyee.com/uploads/1/3/0/7/130739906/6857cb.pdfIn PDF document text
    • http://talltowergames.com/uploads/1/3/0/3/130313766/renukuzorireziruxaw.pdfIn PDF document text
    • http://1888store.com/uploads/1/3/0/6/130621640/tenul.pdfIn PDF document text
    • http://withlovec.blog/uploads/1/3/0/4/130483923/lewanerinugaluju.pdfIn PDF document text
    • http://huskercarwash.com/uploads/1/3/0/6/130621309/soduwarexajabof.pdfIn PDF document text
    • http://chofministry.org/uploads/1/3/0/5/130551197/130551197.html#titration+curve+of+acetic+acid+and+sodium+hydroxideIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000350a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x350A 2652 bytes
SHA-256: e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea
font_01_sfnt_off000040ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40CE 7648 bytes
SHA-256: c803805c087b2036f5dd5e2e235011c54966d2e5dbf1ba4279c923759ea0f9df

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