Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9737844cd601e78…

MALICIOUS

PDF

98.5 KB Created: 2021-02-13 08:52:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: f7710367a7e3d77c1738cb2b3cae44b2 SHA-1: 00f4985385b42db0517656a05016737a9ab3dd7c SHA-256: a9737844cd601e789af20c0eeabf41ec184e9940689964277cf320121c70a819
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to lead the user to a malicious site, fitting the pattern of a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

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://jottigo.ru/wix?keyword=red+dead+redemption+2+horseman+10 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4423442/normal_5fceb006ad5fa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454306/normal_5ff1519202842.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417995/normal_6000245083bb1.pdfIn PDF document text
    • https://cdn.sqhk.co/poturofivat/icifja6/american_sniper_movie_2017.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405208/normal_60087ca2668f3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368758/normal_5ffb055a46ca9.pdfIn PDF document text
    • https://cdn.sqhk.co/ravuviwidi/gyxgdje/the_strange_situation_method_assesses_quizlet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366027/normal_5fd78cc522c3e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368953/normal_5fdd12b6c461f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450730/normal_5fc8fb3cda3f3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485010/normal_600f8d190a6b0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://nogomazarem.epizy.com/pc_full_form_meaning.pdfIn PDF document text
    • https://s3.amazonaws.com/nefagolom/impersonal_report_structures_gramatika.pdfIn PDF document text
    • http://xekujigifur.epizy.com/moburafejekefewipiw.pdfIn PDF document text
    • http://ribezewipuzez.epizy.com/birthday_gift_certificate_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/muworunoxitudamijoxumuzal.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/guidelines_for_diagnosing_type_2_diabetes.pdfIn PDF document text
    • http://vebaxabono.epizy.com/dental_clearance_letter_template.pdfIn PDF document text
    • https://s3.amazonaws.com/lomuper/most_popular_social_media_platforms_uk_2018.pdfIn PDF document text
    • http://relimimukavewuj.rf.gd/game_bleach_brave_soul_terbaru.pdfIn PDF document text
    • http://puzasapexuwuju.epizy.com/93626559402.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://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e038.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE038 13408 bytes
SHA-256: a63d982f131544bca6fdfaf0581341af6833686924ce92ddf1d348ea0bb388a0
font_01_sfnt_off0001096d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1096D 5500 bytes
SHA-256: 369cbd79ce352a2e0e0925197c1cc031292e02ee77f1f94b62dcbd20b82748cb
font_02_sfnt_off00011bf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BF0 6564 bytes
SHA-256: c26391ff3078435f39e1ff6385ea9997a5be09578bb11294a44fc13e49389fda
font_03_sfnt_off00013187.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13187 10516 bytes
SHA-256: 21b0a8f4b10aec184b13ebd1218fa10dcc116631538ed0fe8fec83a65f03da2f
font_04_sfnt_off000155c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x155C9 16616 bytes
SHA-256: eb49df985c863db098e5748d60751e0bdf461ae071a7d58dcfe3683d2a7c527c
font_05_sfnt_off00016c9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16C9A 3808 bytes
SHA-256: d55dd41a414255e57f4978864247fa24a1e7c39abb1d71941e4872726dd17b87