Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bb494f5ec66f7d4…

MALICIOUS

PDF

70.4 KB Created: 2021-03-04 16:57:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e534b768302f8b5a34d9cfc07461cb0 SHA-1: 423b39b02e9d215aad1b42b7c9f1a768fb275aa3 SHA-256: 1bb494f5ec66f7d4eb7b941071748c2b9ad1048e804038d54daa50c97aade195
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 URL that leads to a suspicious domain, likely intended to host malicious content or redirect the user. The document body, though heavily obfuscated, suggests a lure related to 'Stormbreaker replica australia', aiming to trick users into clicking the embedded link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://botokaw.ru/wix?keyword=stormbreaker+replica+australia
    • https://static.s123-cdn-static.com/uploads/4369317/normal_5fe2bb58e4b2b.pdf
    • https://jukatuve.weebly.com/uploads/1/3/2/7/132741058/xetodegilimima_ligobab_sanuzufawako_sowamaxo.pdf
    • https://cdn-cms.f-static.net/uploads/4527237/normal_5fd13503b50a4.pdf
    • https://cdn.sqhk.co/gupikekarobo/hbvqxAG/playerpro_music_player_apk_free_download.pdf
    • https://jexelokase.weebly.com/uploads/1/3/5/3/135321670/xedupalawe.pdf
    • http://kitafoged.medianewsonline.com/does_complaint_to_the_bbb_do_anything.pdf
    • https://cdn-cms.f-static.net/uploads/4367007/normal_601b35926c92e.pdf
    • http://kuboduzuke.mypressonline.com/blackjack_weapon_meaning.pdf
    • https://cdn.sqhk.co/wodelaganav/haO10hf/79085560145.pdf
    • http://lokubakodo.getenjoyment.net/34678931991.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://vabowako.rf.gd/what_rules_do_disney_employees_have_to_follow.pdf
    • http://woxanegerofokox.rf.gd/kitizebupukajiweki.pdf
    • http://bitines.myartsonline.com/human_resource_management_policies_and_practices.pdf
    • http://tijuvewoduga.onlinewebshop.net/19466879.pdf
    • https://uploads.strikinglycdn.com/files/01522bd9-59a0-4b12-a2ec-773f99e7822c/kigekefikufazavovadenuru.pdf
    • https://uploads.strikinglycdn.com/files/0924e20f-a2b8-420d-8287-ffc36af258b2/loresibanununok.pdf
    • http://gezugazizexizod.epizy.com/hernia_diafragmatica_pediatria.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_off0000d6dc.bin
a936558ff28451e604168e5a1789558923264a4bc5d99d3f421503034694d2fb
pdf-font-stream PDF embedded font (sfnt) at offset 0xD6DC 5384 bytes
font_01_sfnt_off0000e910.bin
eab0636510704e0b5ab2db38860b57429176b05d3ec57b143fed6c6ad16189eb
pdf-font-stream PDF embedded font (sfnt) at offset 0xE910 10568 bytes