Malicious PDF — malware analysis report

Static analysis result for SHA-256 04b60ed36ec3196f…

MALICIOUS

PDF

35.8 KB Created: 2020-04-11 06:26:49 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-04
MD5: 67162f0b810b221bfba3074c8bda98b9 SHA-1: c8283f806b4fb6a17092fc910112bac1d15a2a0e SHA-256: 04b60ed36ec3196f8ce7568c0aee55db9642361618d679e0e902f16411e6dae3
156 Risk Score

Malware Insights

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

This PDF document was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious intent. It contains a large number of external links, many of which point to PDF files hosted on suspicious domains, suggesting a link farm or a method for distributing further malicious content. The embedded URL points to a domain that appears to be a lure for account-related information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • ClamAV: Pdf.Dropper.Agent-8493215-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8493215-0
  • 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.
  • 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://melbournehotelplaceholder.devsite-1.com/uploads/1/3/0/6/130639123/130639123.html#www+pcsmastercard+com+rubrique+mon+compte PDF link annotation
    • http://myqualityassurance.net/uploads/1/3/0/3/130323109/8383003.pdfIn PDF document text
    • http://carriemass.com/uploads/1/3/0/6/130621431/rugagimov.pdfIn PDF document text
    • http://tribedenzi.com/uploads/1/3/0/8/130813416/pivenad-jesusixobenuxer.pdfIn PDF document text
    • http://blwworld.com/uploads/1/3/0/4/130488165/6660296.pdfIn PDF document text
    • http://barbertontreeservice.com/uploads/1/3/0/2/130272496/buzawasitomubidesuva.pdfIn PDF document text
    • http://1up-products.com/uploads/1/3/0/5/130540683/9908593.pdfIn PDF document text
    • http://ayurvedasupplies.com/uploads/1/3/0/8/130874519/giwazala-nadagipa-pewoneb.pdfIn PDF document text
    • http://centrecollegialalberta.com/uploads/1/3/0/8/130813478/3831876.pdfIn PDF document text
    • http://ofcstylest.com/uploads/1/3/1/4/131453484/gitog.pdfIn PDF document text
    • http://betterbethomes.com/uploads/1/3/0/5/130589281/larugetut.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E2 8432 bytes
SHA-256: 7abae7883fde052d86855be7a13c13b3fcb71ffd744a092c698caa1c15e383ac

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