Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c699632b7376560…

MALICIOUS

PDF

82.0 KB Created: 2021-01-27 01:34:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: be9ec55ec09c2db50df92259ba9d4412 SHA-1: 7b77b000644c425896e4248357abe42345ff23e5 SHA-256: 9c699632b73765603bc95b3440dfc5a4240946ab1d5d50c51d164876aac448ce
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URL that is disguised as a study guide, likely to trick users into clicking it. The PDF structure and embedded content suggest it's designed for phishing or malware distribution.

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://bologen.ru/123?utm_term=social+studies+study+guide+6th+grade PDF link annotation
    • http://fixmarker.fun/nokitufopelutf0tdv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481516/normal_5ffe962543535.pdfIn PDF document text
    • http://24goodstore.site/tropico_6_dlc_plans36s2k.pdfIn PDF document text
    • http://subikizivuwen.22web.org/fegolape.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455403/normal_6000684275bfb.pdfIn PDF document text
    • http://bnl-jobs.com/mission_impossible_java_game_240x320ibhz3.pdfIn PDF document text
    • http://saratov.ooo/682871044409phbk.pdfIn PDF document text
    • http://matrixbicycles.com/internship_survival_guide_4th_edition3vo2e.pdfIn PDF document text
    • http://dle-tpl.site/4466222939ms1yq.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://voboxixet.rf.gd/anthem_bcbs_virginia_151_form.pdfIn PDF document text
    • https://s3.amazonaws.com/getizar/staff_nurse_incident_report_sample_in_nursing.pdfIn PDF document text
    • http://nulesuli.epizy.com/86153161560.pdfIn PDF document text
    • https://s3.amazonaws.com/fadupazageraf/49708821184.pdfIn PDF document text
    • https://s3.amazonaws.com/wemupajese/tajaxapebigofo.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/tupesatusad.pdfIn PDF document text
    • https://s3.amazonaws.com/xoferuzu/lejasiruxavarobof.pdfIn PDF document text
    • http://zunijakokusageg.epizy.com/11072706624.pdfIn PDF document text
    • https://s3.amazonaws.com/bizamesuwepe/xabupetes.pdfIn PDF document text
    • https://s3.amazonaws.com/zonivezada/sea_cargo_manifest_excel_template.pdfIn PDF document text
    • http://nojubeweba.epizy.com/kendo_dropdownlist_template_mvc.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f625.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF625 5336 bytes
SHA-256: 4443d7e6f95229f9d7fb78d6024a8129868ee0ede362229ffb32c826a1f04cde
font_01_sfnt_off00010850.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10850 10552 bytes
SHA-256: 9e33bd98dba3ef6db970eda13d92d3552b08de14cdb81cf9a8e78757c848fcc4
font_02_sfnt_off00012c6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C6A 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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