PDF static analysis report

Static analysis result for SHA-256 8850ddf95b295404…

SUSPICIOUS

PDF

49.2 KB Created: 2020-04-19 22:46:28 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2021-09-18
MD5: 9772a31db3f3eceeb89344f3503ee647 SHA-1: 44626e10360c6f0bb4d881339762584db5c6f43a SHA-256: 8850ddf95b29540406e5c9a8225f7506d6138cf0d7a6a44eda0f4df528b893a0
36 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as suspicious by an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9871

Heuristics 3

  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://mychoicemedicalpractice.com/uploads/1/3/0/6/130620792/130620792.html#reported+speech+upper+intermediate+exercises+pdf PDF link annotation
    • http://cre8ivevisiongroup.com/uploads/1/3/0/5/130541137/f01cc4fa1d5df1.pdfIn PDF document text
    • http://bricktoyaface.com/uploads/1/3/0/7/130776016/nagosafafikum-gawuxa.pdfIn PDF document text
    • http://novaimmobilien.eu/uploads/1/3/0/6/130605403/nidivuwez-bixer-papun-padezutokikux.pdfIn PDF document text
    • http://jennifernaturals.com/uploads/1/3/0/6/130621447/xakebimowunot-wikela-didunaxe-witinulufikos.pdfIn PDF document text
    • http://jsventuring.com/uploads/1/3/0/9/130969907/dofez.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In 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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F40 8136 bytes
SHA-256: 702dfe3bf5d78534bff2d59b9c5a10307d9100409bb9100b3bb70d79f93201db
font_01_sfnt_off00008eb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EB8 2652 bytes
SHA-256: e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea
font_02_sfnt_off0000981c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x981C 1740 bytes
SHA-256: 330464a6acc803da3fb34c4c599bad942c5546d65e731cd319c37e5c31619ddb
font_03_sfnt_off0000a0c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0C4 16572 bytes
SHA-256: 4bfaa097d13d16022673b1fc5f43180a89d1a3ebdd042fd6e23a7ea6d230355d

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