Malicious PDF — malware analysis report

Static analysis result for SHA-256 80e38002ed027207…

MALICIOUS

PDF

41.1 KB Created: 2020-03-08 10:49:59 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: c74f8f4594b83c102a2928f5b4232be3 SHA-1: cea8d95fc1909746b99664912e3629dcbc7919b2 SHA-256: 80e38002ed02720791595ec031bad7a46a0902b92cb83c9cf5362b2f9056aa13
96 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which are structured as numeric slugs, indicating a link farm designed to direct users to potentially malicious content. The document body, though heavily obfuscated, contains URLs that are likely used to host further stages of an attack or phishing content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://purerockcolours.eu/uploads/1/3/0/4/130483205/130483205.html#idsa+community+acquired+pneumonia+guidelines+2019 PDF link annotation
    • http://krowncustomcues.com/uploads/1/3/0/6/130639313/e7f5a3e.pdfIn PDF document text
    • http://jtpropertymanagement.net/uploads/1/3/0/3/130324191/5012698.pdfIn PDF document text
    • http://visiondrive.org/uploads/1/3/0/4/130477026/4943041.pdfIn PDF document text
    • http://prescottalbum.com/uploads/1/3/0/6/130622101/pisedopakenan.pdfIn PDF document text
    • http://lakehuronbathandbody.com/uploads/1/3/0/5/130588173/0afbbbb.pdfIn PDF document text
    • http://findyourhairdresser.com/uploads/1/3/0/9/130969206/werolekamufeb.pdfIn PDF document text
    • http://exodustcu.com/uploads/1/3/0/5/130551049/126875dc9232e.pdfIn PDF document text
    • http://youngprogressivist.com/uploads/1/3/0/3/130323599/jikivixefupeteboviv.pdfIn PDF document text
    • http://bridgetownbaroque.org/uploads/1/3/0/8/130815093/f68e7f363d.pdfIn PDF document text
    • http://mx.cradleofsanctity.com/uploads/1/3/0/7/130776648/01942c.pdfIn PDF document text
    • http://rotoruayachting.club/uploads/1/3/0/2/130272234/fazawuwokoretekokeb.pdfIn PDF document text
    • http://flatluxurious.com/uploads/1/3/0/6/130604497/gexefalosepate.pdfIn PDF document text
    • http://zollthai.com/uploads/1/3/0/7/130776864/611467.pdfIn PDF document text
    • http://younglivingdaily.com/uploads/1/3/0/7/130739538/sutadelemigisesemux.pdfIn PDF document text
    • http://privettartgallery.net/uploads/1/3/0/2/130289495/ea65df8b7c.pdfIn PDF document text
    • http://www.instytutpilates.com/uploads/1/3/0/5/130590366/fomifizomomopegabope.pdfIn PDF document text
    • http://viceroyautotrans.com/uploads/1/3/0/8/130873782/2325443.pdfIn PDF document text
    • http://sipthesencha.com/uploads/1/3/0/3/130312993/bewose.pdfIn PDF document text
    • http://velvetmazes.com/uploads/1/3/0/3/130323423/5d25be164.pdfIn PDF document text
    • http://nataliejimenez.com/uploads/1/3/0/3/130379769/juwikobam.pdfIn PDF document text
    • http://bikevaultsystem.com/uploads/1/3/0/6/130639074/nezopifex_zorasuweguju_tozap.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
🗂 Part of campaign: mangumcourtyards.com 11 samples

Related samples 2

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_off000077c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77C3 7980 bytes
SHA-256: 7231f9fcfacc93221cc341a925118e531a10cc71ed414ed61a1c7326bb0b5760

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