Malicious PDF — malware analysis report

Static analysis result for SHA-256 30c08356b12b9790…

MALICIOUS

PDF

77.7 KB Created: 2021-03-18 19:55:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90695861db332a67cb4dfaaf9382e15b SHA-1: d6d41edf7c431abf69f7420268b6efd7ed7b177f SHA-256: 30c08356b12b97907a1d00716bb8f533ab090ec94a892cd4083a8c4dad66ed6f
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 directly relates to the lure text found in the document body, suggesting it's intended to redirect users to download a malicious application. No scripts were extracted, but the presence of external URIs and the overall classification strongly indicate a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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=instagram+hack+followers+and+likes+apk+download
    • http://jutereli.iblogger.org/phonics_computer_games_free.pdf
    • https://cdn-cms.f-static.net/uploads/4495241/normal_601632b5a00e8.pdf
    • https://cdn.sqhk.co/dikizumi/wv4ghH9/monument_valley_2_vinyl_soundtrack.pdf
    • http://pop-marketplace.ru/xopufewalajusepijmoa2i.pdf
    • https://cdn-cms.f-static.net/uploads/4464739/normal_602f0ab2e48f3.pdf
    • http://huseyincanx.com/arnold_schwarzenegger_bodybuilding_training_videos1z7xm.pdf
    • https://cdn.sqhk.co/xawefigi/e2YV42q/xidodonizavi.pdf
    • http://presente-top.store/what_is_the_message_of_50_shades_of_greylkrrf.pdf
    • http://buytoday.cc/design_living_room_furniture_arrangementsah1it.pdf
    • https://cdn.sqhk.co/turanexode/bVwjaRk/djjanim_joker_turkish_ringtone_download.pdf
    • http://kemytbok.xyz/gone_with_the_wind_book_imagesnwo05.pdf
    • https://cdn.sqhk.co/wotinobeb/UiaHgco/15033082487.pdf
    • https://cdn-cms.f-static.net/uploads/4414873/normal_600d1b17e22de.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://48bd7725-9370-4d18-884e-e75d7b70c9c4.filesusr.com/ugd/f241d9_bf0a54779a894f198a211017ea4862bf.pdf?index=true
    • https://e082b6be-64c0-45f6-a8ff-82b9c6f476f0.filesusr.com/ugd/1479de_1a4f12b088e644c3971cc9f3d6618aea.pdf?index=true
    • http://ravesezubepad.epizy.com/zogajulijilivukej.pdf
    • https://7162f0c1-3bb2-4775-9ad2-1e34613fb889.filesusr.com/ugd/595093_d72b0eb2a50a4acbb6fdc789e1c52946.pdf?index=true
    • http://vaxilokenifak.epizy.com/folk_and_pop_culture_human_geography.pdf
    • http://povivubezili.rf.gd/seventh_grade_math_book_answers.pdf
    • http://jelesopufif.epizy.com/12370321340.pdf
    • http://visowad.epizy.com/welevupuwibuletogoraj.pdf
    • https://4b3b4da4-1145-40fd-8a04-0ac29766dab0.filesusr.com/ugd/6c6203_c1729706cacd48e18c9f933284715c9a.pdf?index=true
    • http://jenenulufem.rf.gd/zobesarufobomazajeludovak.pdf
    • https://75a697d3-84f0-44cf-bab9-f05e37020c50.filesusr.com/ugd/7c3584_726b43fd5e794dcf88a9fc419b7c02a1.pdf?index=true
    • 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_off0000f08b.bin
3f3d7baa688cdeb1f23d59f32a44ba30de2cb0a252e68786f4d8ade158e23e12		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF08B 5660 bytes
font_01_sfnt_off000103b9.bin
01d51377027487ba7220316754e0b33563720480dd6c23ab1e6c7d5cb5294f59		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103B9 10948 bytes

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