Malicious PDF — malware analysis report

Static analysis result for SHA-256 a307bc5f2ef5ee06…

MALICIOUS

PDF

80.8 KB Created: 2021-03-31 17:54:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e2eb3234811d7113600c563e1a556a60 SHA-1: 2bd8f091bb2b880677374483eb9d710455c89396 SHA-256: a307bc5f2ef5ee064221f88f91d8a5c0181c0369c7854beaa15fa530af2fdcde
96 Risk Score

Malware Insights

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

The PDF was flagged by ML classifiers and ClamAV as malicious, with heuristics indicating the presence of an external URI. The embedded URL, https://mezovuduw.ru/wix?keyword=good+sonic+level+design, is likely used to redirect the user to a malicious site. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and URL suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://mezovuduw.ru/wix?keyword=good+sonic+level+design
    • http://tasigezagu.scienceontheweb.net/online_to_autocad_drawing_converter.pdf
    • https://cdn.sqhk.co/letarezetap/yziikgg/lutejufe.pdf
    • http://gopudumimipabol.mypressonline.com/depth_of_field_photography.pdf
    • https://cdn-cms.f-static.net/uploads/4477620/normal_6063ab216dda2.pdf
    • https://cdn-cms.f-static.net/uploads/4367617/normal_601854c18780e.pdf
    • http://mumolazesinidix.getenjoyment.net/the_boyfriend_bracket.pdf
    • http://sokixatov.mywebcommunity.org/munuwagoruruveretidojiz.pdf
    • https://cdn.sqhk.co/dijowasedop/hi8LtH2/kozopeve.pdf
    • http://xatakafigudu.getenjoyment.net/jamajuxubiwafoxiluxit.pdf
    • https://cdn.sqhk.co/xulawajikigi/MFUjbje/rotating_brave_switch.pdf
    • https://cdn-cms.f-static.net/uploads/4389085/normal_600d1787cd77c.pdf
    • http://detozube.scienceontheweb.net/jaserap.pdf
    • http://gavolav.mywebcommunity.org/hctz_davis.pdf
    • http://wapividazofar.scienceontheweb.net/donivuzufifom.pdf
    • http://wegaturagifo.getenjoyment.net/abordagem_contingencial_da_administrao.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/f64961ed-b17e-4b25-bd60-09f118bf6f08/94357739064.pdf
    • https://s3.amazonaws.com/xazarujokemus/94696865529.pdf
    • https://uploads.strikinglycdn.com/files/38f5beec-9be6-4dcf-b4de-8effb001d8c1/a_dolls_house_short_story.pdf
    • https://uploads.strikinglycdn.com/files/8314505d-3f49-405c-b459-a3f4be41c51d/samsung_smart_tv_50_inch_price_in_malaysia.pdf
    • https://uploads.strikinglycdn.com/files/318cac51-83b1-4d42-83d6-0505824b7269/eventide_h9_harmonizer_vs_max.pdf
    • https://s3.amazonaws.com/xefezesebusu/adding_mixed_fractions_with_different_denominators_calculator.pdf
    • https://s3.amazonaws.com/supefujoxopubu/the_crack_up_fitzgerald_audiobook.pdf
    • 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_off0000ffba.bin
8721201efc7462ec9c5c47965c3c757f15938044b1e3d7423b4cb4e5e33b7232		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFFBA 4892 bytes
font_01_sfnt_off00011083.bin
91898a435fb4fedb577ee44ba9eb178404745c5c1e0af09231ba1a889da2f770		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11083 11288 bytes

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