Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb08325a556dfda1…

MALICIOUS

PDF

41.7 KB Authoring application: QPDF First seen: 2020-09-24
MD5: 29a9151450dc171d09b0301dd5303f6a SHA-1: abf53569018a967aa626c19c967f03cc9b5a6002 SHA-256: cb08325a556dfda1906c290139f4ad044d8a7c3f662b25d76ce248f48c6e92e3
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links to external PDF documents, a technique often used for SEO manipulation or phishing. The ClamAV detection and ML classifier strongly indicate malicious intent. The embedded URLs are the primary indicators of compromise, suggesting the document's purpose is to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://montanagiftstop.com/uploads/1/3/0/6/130603937/c8a1e1fb.pdf In PDF document text
    • http://calhounheritagep.com/uploads/1/3/0/6/130639110/e78ec610fbd4.pdfIn PDF document text
    • http://10dayfilm.org/uploads/1/3/0/3/130323656/wujolowi_begipowe_todevobokap.pdfIn PDF document text
    • http://xopilalo.dddich.ru/uploads/2020/01/29/xigez.pdfIn PDF document text
    • http://soundsolutionsmarketing.net/uploads/1/3/0/6/130604542/ee5427b9301.pdfIn PDF document text
    • http://alejandrodrago.com/uploads/1/3/0/3/130379424/475d5.pdfIn PDF document text
    • http://marketingprivateschools.com/uploads/1/3/0/6/130620946/032d4.pdfIn PDF document text
    • http://mister5foot18.com/uploads/1/3/0/5/130548070/fb6661fbff94951.pdfIn PDF document text
    • http://artexart.uk/uploads/1/3/0/6/130639689/nuzoba.pdfIn PDF document text
    • https://tekozefamediv.weebly.com/uploads/1/3/0/2/130287914/4411428.pdfIn PDF document text
    • http://connectingmoments.co.nz/uploads/1/3/0/6/130603688/nimiva-dasojufamod-xapitugejasid.pdfIn PDF document text
    • http://2020blue.org/uploads/1/3/0/3/130379227/130379227.html#predefined+answers+meaningIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
🗂 Part of campaign: calhounheritagep.com 4 samples

Related samples 1

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001349.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1349 9860 bytes
SHA-256: 2d0caf766e4aa7301c3fd919cfdda814b7f905477d7d3af004caeb086cbfc7e3
font_01_sfnt_off00005c52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C52 16112 bytes
SHA-256: 37e0908f1ef255ef445be297141f8cc0e11967ffe8749ed7e33524e366a98df7

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