Malicious PDF — malware analysis report

Static analysis result for SHA-256 3975ebf2261dc906…

MALICIOUS

PDF

36.2 KB Authoring application: Soda PDF First seen: 2020-09-24
MD5: 8966e50f303dd6628dd3081c40450ae7 SHA-1: f91163eb97e9f3fd9d4f6e12c918aaa2393c1b7e SHA-256: 3975ebf2261dc906bd0ccc6389cd0879949f7298594f332ba2a550794f4070a4
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs pointing to other PDF documents, a technique often used for SEO manipulation or to host phishing content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent. No scripts were extracted from this sample, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://betterliving-training-coaching.weebly.com/uploads/1/3/0/3/130323666/8476445.pdf In PDF document text
    • http://diestrodecuerdas.com/uploads/1/3/0/6/130604117/tebakatudabunawusede.pdfIn PDF document text
    • http://webdesignbycarole.com/uploads/1/3/0/6/130621498/xapeliwin.pdfIn PDF document text
    • http://rochesterfleetservice.com/uploads/1/3/0/4/130489669/994bb2e94e45a.pdfIn PDF document text
    • http://adulosangeles.com/uploads/1/3/0/7/130739522/nuvisizaw-refifijawoxi-levalirenifunu.pdfIn PDF document text
    • http://regowed.store/uploads/1/3/0/4/130488530/7fdd9e.pdfIn PDF document text
    • http://middletonandnewbigginparishcouncil.org/uploads/1/3/0/5/130589313/174129.pdfIn PDF document text
    • http://mbrsmartbook.com/uploads/1/3/0/4/130493248/miwufero_bawel_liwofu.pdfIn PDF document text
    • http://bariatricsinc.com/uploads/1/3/0/6/130639333/9393563dbd6.pdfIn PDF document text
    • http://meshayla.com/uploads/1/3/0/5/130551882/130551882.html#grace+fit+guide+pdf+9-+16In 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

Related samples 8

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_off0000127b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127B 8760 bytes
SHA-256: b3c6dab88f2f5224d9053ba2ef224b7318f2544491d9ace9ef1ede41df590b97
font_01_sfnt_off00005239.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5239 2652 bytes
SHA-256: e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea

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