Malicious PDF — malware analysis report

Static analysis result for SHA-256 18e66c18fda4feef…

MALICIOUS

PDF

45.8 KB Authoring application: ImageMagick
MD5: 0007736421ec4ffe6cff915ceb01d083 SHA-1: 5d1943259e13ef9bd8a6c09245a945b2e3613777 SHA-256: 18e66c18fda4feef5a7f8c6bc439e256097a07fdf21186f39a69558d897f699d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing attempt. The document contains a large number of embedded URLs that form a link farm, likely intended to redirect users to malicious content or further phishing sites. The presence of these links and the heuristic firing for 'PDF_SEO_LINK_FARM' strongly suggest a malicious intent to distribute further malware or engage in phishing activities.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://mrgospelmusic.com/uploads/1/3/0/4/130435518/9252165.pdf
    • http://mrsindler.com/uploads/1/3/0/5/130588484/19958ef4.pdf
    • https://fabibuveku.weebly.com/uploads/1/3/0/5/130589228/3750684.pdf
    • http://meredithlagerman.org/uploads/1/3/0/4/130476050/f635d6.pdf
    • http://newchicagoschool.net/uploads/1/3/0/2/130291544/fuxobure.pdf
    • http://commercialcompliance.com/uploads/1/3/0/6/130605462/6ef208dc1.pdf
    • http://kiseats.com/uploads/2020/01/29/lometogedo_fipobewur_karavopotexu.pdf
    • http://noahsgiftsandgallery.com/uploads/1/3/0/6/130620429/poxodavagukavife.pdf
    • http://elementhomeaudio.com/uploads/1/3/0/4/130483937/zufelawubad_sigikikafubi_kabolupokimeket.pdf
    • http://mgcomnxyzjdptchzh.weebly.com/uploads/1/3/0/2/130272925/vixabemoji.pdf
    • https://najutibewegusu.weebly.com/uploads/1/3/0/3/130379226/c967d3551.pdf
    • http://transformationspersonaltraining.com/uploads/1/3/0/6/130604538/6688365.pdf
    • http://cyclebavaria.com/uploads/1/3/0/5/130550778/130550778.html#no+more+heroes%3A+heroes%27+paradise
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicense

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001391.bin
2f4f7e8d62613c80a8a43508d0f0145babe1f4ab43d09796d40d11abf27ad695		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1391 8604 bytes
font_01_sfnt_off000077f6.bin
e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77F6 2652 bytes

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