Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e573bbedfab0384…

MALICIOUS

PDF

70.6 KB Created: 2021-03-18 00:45:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b93209ccf519c743254824ce3e8d090e SHA-1: b0c135741ca7bbb3b805d7e97b789ecd9571ad61 SHA-256: 1e573bbedfab0384ac472dcb34f3f94efd68e66736f65e9c2170fe690b18d0c5
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, appears to be a lure related to search results, reinforcing the phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://resalured.ru/wix?keyword=new+zealand+white+pages+napier
    • http://noksipals.online/tercer_cielo_yo_te_extraare_descargghda6.pdf
    • http://levojefozaloro.mywebcommunity.org/phonetic_transcription_of_words.pdf
    • https://nutikatike.weebly.com/uploads/1/3/4/6/134601603/lafike-nijoralavam-fediz-kusopaduvile.pdf
    • http://bafiselavanebep.mywebcommunity.org/zibodikesurukogenagodu.pdf
    • http://novemipet.22web.org/medewekasefogadapisukira.pdf
    • http://mishabelle.ru/dark_web_image_searchy4vht.pdf
    • http://lomuwugevona.getenjoyment.net/sifegutitodate.pdf
    • http://xokapik.mywebcommunity.org/55119598570.pdf
    • http://ninomut.sportsontheweb.net/worksheet_1.1_limits_and_continuity.pdf
    • http://coolvdomaion.online/facebook_app_id_androidm2g3y.pdf
    • http://wide-do.top/lubexepigoru50t1d.pdf
    • http://kidiwutimako.mygamesonline.org/fundamentals_of_astrodynamics_and_applications.pdf
    • https://ladifibefumuxuw.weebly.com/uploads/1/3/4/3/134353250/katowemopoj_pitemazevam_pifivujarari_wilusika.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://rakejobik.epizy.com/zewopugebopatajonitot.pdf
    • http://lijaros.rf.gd/nj_transit_bus_fare_covid-19.pdf
    • https://s3.amazonaws.com/nemafu/26724827060.pdf
    • https://s3.amazonaws.com/patilawasu/what_is_108_sun_salutations_yoga.pdf
    • http://lurilufe.epizy.com/51511541058.pdf
    • http://mikijanux.atwebpages.com/philosophy_of_science_journal_abbreviation.pdf
    • https://s3.amazonaws.com/legenapi/blackjack_cheat_sheet_chart.pdf
    • https://s3.amazonaws.com/gewuwasi/sql_server_2016_enterprise_edition_iso.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_off0000d686.bin
0cb8a4d0666f8ed94da8cc5a127e5c12a58c3f656ad39770ef325227614e1169
pdf-font-stream PDF embedded font (sfnt) at offset 0xD686 5332 bytes
font_01_sfnt_off0000e8bc.bin
46efe7955b9df9457528da983cc26b6e17abce752ae14773b1835164a2ba4c7e
pdf-font-stream PDF embedded font (sfnt) at offset 0xE8BC 10648 bytes