Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bdd57cc6aad0675…

MALICIOUS

PDF

79.2 KB Created: 2021-05-13 20:07:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b8bed5235658aa5fa330aff460c4be33 SHA-1: 84d68e4fabbe2638a702e4f7647c5911d1a07ea9 SHA-256: 0bdd57cc6aad06759447dd4d955dc20338e90a1d0b4dfffaac90946c5684d9be
96 Risk Score

Malware Insights

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

The PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The embedded URL and document body text suggest a lure related to 'Piriform CCleaner problems', likely intended to trick the user into clicking a malicious link. While no scripts were explicitly extracted, the nature of the detection and the presence of multiple unknown URLs indicate a high probability of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607270d523333---33723120091.pdf
    • https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/ff6570a828a8321631fb94c75b5ae6e2/41547881569.pdf
    • https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/84ac4159807e76919fbaee8dc6537b6a/lugajukujututawo.pdf
    • http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609c182243c45---82314738623.pdf
    • http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/53aea1ce0d83f90d7bcdcaeb590d62f3/lerojazik.pdf
    • http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16091ff5d44fb1---vojavel.pdf
    • http://purpledoorchurch.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d38b65e88d---zafoli.pdf
    • https://maspacientes.es/wp-content/plugins/super-forms/uploads/php/files/2t6atfd7fkr05m4ejm5ghpsip7/47153685962.pdf
    • https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/t5ft9e3lh52de5d1jmm9ak07jf/5249853567.pdf
    • http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a86303090b---80338803902.pdf
    • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607d1ef7e40ca---libabigibuxunuxisofuxekan.pdf
    • https://www.eoluk.com/wp-content/plugins/super-forms/uploads/php/files/886p1t7s9u4upcdc4ooeqgso6r/18684933532.pdf
    • https://www.expoagrogto.com/wp-content/plugins/super-forms/uploads/php/files/i21vesfdof2a2do8mb8qcuhp42/7384732312.pdf
    • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160806edd6cf38---kuzozavafimakovo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=piriform+ccleaner+problems
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fa7d.bin
7d26241f3e3b73fdb324f8b8201d52d83362c189acaa0a09f4a4336fd562ba19		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA7D 5300 bytes
font_01_sfnt_off00010c6c.bin
083f1d3658a02eb75d39ddccffa577dfe3e43dfc25f14cfa755c118213f1e8f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C6C 10648 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.