Malicious PDF — malware analysis report

Static analysis result for SHA-256 24cae3fca4512d61…

MALICIOUS

PDF

51.2 KB Authoring application: Adobe PDF Library 9.0 First seen: 2020-09-24
MD5: 66c447749e6a193f9c968bc769e0ffb1 SHA-1: 53306e700ed6a5151f950cb381c6f0c24b9df3cc SHA-256: 24cae3fca4512d61a826ec0761c476fb12c2aefdbb0473640615d72aeeade869
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. These URLs point to various external PDF files, suggesting a link farm designed to attract traffic or distribute further malicious content. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or traffic-driving intent. No scripts were extracted from this sample.

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://xem.budpervym.ru/uploads/2020/01/28/fifazatib.pdf In PDF document text
    • http://dhshighschool.com/uploads/1/3/0/6/130621190/f12f318777.pdfIn PDF document text
    • http://mynutritioninnovation.com/uploads/1/3/0/6/130620846/belokodeli-miwigeromivel.pdfIn PDF document text
    • http://msandtherapist.com/uploads/1/3/0/6/130604378/lirof.pdfIn PDF document text
    • http://boxatsantafe.com/uploads/1/3/0/2/130270892/d72e61765d902.pdfIn PDF document text
    • http://nuggwholesale.com/uploads/1/3/0/4/130483350/gumup-zuzipenuxav-duvibukuga-jasixog.pdfIn PDF document text
    • https://kujebumefe.weebly.com/uploads/1/3/0/5/130546118/tifevobe_datexu.pdfIn PDF document text
    • http://petoskeydrones.com/uploads/1/3/0/5/130590157/8f24275d23.pdfIn PDF document text
    • http://shredstories.com/uploads/1/3/0/5/130550966/mabipi.pdfIn PDF document text
    • http://novific.com/uploads/1/3/0/5/130542781/a58bfde0a7.pdfIn PDF document text
    • http://zambiasafarihunting.com/uploads/1/3/0/4/130490399/d86d203.pdfIn PDF document text
    • http://speedkiteboard.com/uploads/1/3/0/6/130639241/130639241.html#ukulele+dimensions+pdfIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
🗂 Part of campaign: novific.com 3 samples

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E7 8868 bytes
SHA-256: 174ba7e6770ca9ea4ec6f2b8a292d79009cbd5a55e2c861d6519b0dddcee19db
font_01_sfnt_off00007945.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7945 2616 bytes
SHA-256: d907c570f1f8f2d62f38d7529dbf77de46ca3a1917ec53aca7a78bae59874b04
font_02_sfnt_off000081ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81EC 16072 bytes
SHA-256: 5a0de9f0d8f131c7dcd80ef926154ce6f425b3eb9bbaa06b03861bf098f2d807

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