Malicious PDF — malware analysis report

Static analysis result for SHA-256 77e1c8255848db28…

MALICIOUS

PDF

132.4 KB Authoring application: Serif PagePlus First seen: 2020-09-24
MD5: 67b2df28d7bf837bbbb217d78f76422f SHA-1: 16dc157586c704ad85c9b0d7d1d46cf29e421572 SHA-256: 77e1c8255848db28e44c56a6f301f2a1d37cdcc11662797240b11cb5849a922f
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics, including a critical rule indicating a large number of embedded external PDF links, and a ClamAV detection for phishing malware. The embedded URLs suggest a link farm designed to redirect users to potentially malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://met-wilderwood.com/uploads/1/3/0/8/130874614/jagufuro.pdf In PDF document text
    • http://wmtribal.com/uploads/1/3/0/3/130313340/2657e.pdfIn PDF document text
    • http://amorahome.com/uploads/1/3/0/5/130589299/jowinewexalokirasi.pdfIn PDF document text
    • http://m.thewitchsgarden.com/uploads/1/3/0/7/130775557/32872eef15.pdfIn PDF document text
    • http://wilsoninteriordesign.com/uploads/1/3/0/5/130551805/gurimusuve_rizakejapa.pdfIn PDF document text
    • http://amanda-mccall.com/uploads/1/3/0/7/130739483/4366678.pdfIn PDF document text
    • http://commercialequipmentparts.com/uploads/1/3/0/4/130490643/gakegowa-gariduponugel-zovum.pdfIn PDF document text
    • http://accleaningservices.net/uploads/1/3/0/6/130620519/zikupenifuki.pdfIn PDF document text
    • http://xlifesciencefond.com/uploads/1/3/0/4/130483457/nujezu-ruvit-newavuwolobexed-gibudewivibus.pdfIn PDF document text
    • http://wootagh.org/uploads/1/3/0/7/130740210/9236163.pdfIn PDF document text
    • http://millteacher.com/uploads/1/3/0/4/130490078/vulizusoxuligiga.pdfIn PDF document text
    • http://www.ejaznadeem.com/uploads/1/3/0/6/130621480/kenobafi-kiwal.pdfIn PDF document text
    • http://dogdetailmovie.com/uploads/1/3/0/6/130603874/2778076.pdfIn PDF document text
    • http://w3innov8.com/uploads/1/3/0/6/130620482/d79b8339863.pdfIn PDF document text
    • http://storgebhs.com/uploads/1/3/0/7/130776617/7939234.pdfIn PDF document text
    • http://millenialpages.com/uploads/1/3/0/4/130435520/b513047cd1efc.pdfIn PDF document text
    • http://946.bpmtc.com/uploads/1/3/0/7/130738705/130738705.html#fifa+world+cup+2018+groups+drawIn 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_off0000168b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x168B 16984 bytes
SHA-256: 986bf8955b1c0860d06f2bf6669568db255d079895ececa225f7f86101eb88e7
font_01_sfnt_off0001d151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D151 2732 bytes
SHA-256: 7863b829de04ea8b7f5be4d5dae43fa62182e7611f0c3a300d10b316d27db496