PDF static analysis report

Static analysis result for SHA-256 666ef0b5b6d23e6e…

SUSPICIOUS

PDF

50.2 KB Created: 2020-04-13 22:31:44 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 22bd287d361ee5262361be96d5474580 SHA-1: 9b97e97af059277307bd7b753397fe7854403ee4 SHA-256: 666ef0b5b6d23e6e813fad6084536c4a07abab4a73db7e512e054b6e728ebb1e
44 Risk Score

Malware Insights

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

The PDF document contains embedded URLs and exhibits characteristics of a phishing lure, specifically referencing a college form to entice users. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple external URLs suggests an attempt to redirect the user to a malicious site. No scripts were extracted, but the overall structure and embedded links point towards a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 4

  • 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
  • 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://radiancecenterproposal.com/uploads/1/3/1/3/131383467/131383467.html#shaheed+bhagat+singh+college+online+form PDF link annotation
    • http://encorect.org/uploads/1/3/0/2/130289282/kelekuzotedavi.pdfIn PDF document text
    • http://nancymccloud.com/uploads/1/3/1/4/131407267/fd95879cd3.pdfIn PDF document text
    • http://wof-eg.com/uploads/1/3/0/3/130312998/6678440.pdfIn PDF document text
    • http://ggpevents.org/uploads/1/3/0/8/130813948/4833980.pdfIn PDF document text
    • http://mtmsmusic.com/uploads/1/3/0/6/130603913/bodurefagefo_fizolujiv_funopitiwofox.pdfIn 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
    • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008495.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8495 9220 bytes
SHA-256: 1bc16d14e5651dbbd8d7015f92d2e605d13aff66231278b10aa9d4f631c99f2b
font_01_sfnt_off0000a783.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA783 16164 bytes
SHA-256: 32b54217619f9438721b423dc2f4f4da0f78781b0811ea49af2be6b0310ecf56

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