Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3ebca3fa9403eaf…

MALICIOUS

PDF

76.4 KB Created: 2021-02-27 16:12:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8281ce6394b695775882ed2d8ed5b762 SHA-1: d252af5ad5de6de7c97f1ffe6b81ff5b48817e7b SHA-256: e3ebca3fa9403eafb66f7d0481a1eace9f0a96f7c52ff238112e14542ef47087
104 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, indicating a high likelihood of malicious intent. The presence of numerous external URLs, including one that appears to be a lure related to appliance repair, suggests the document is designed to redirect users to malicious sites. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://seumenha.ru/strik?utm_term=how+to+turn+off+ice+maker+in+samsung+freezer
    • https://cdn.sqhk.co/dodazija/VP4Aq4O/1419515046.pdf
    • http://semengergel.ru/6652008032598g1o.pdf
    • http://finansi-7.online/sexaxinufilemozawirav9emf.pdf
    • https://buxodofuluni.weebly.com/uploads/1/3/4/8/134875319/c0c26986e3.pdf
    • https://visoruze.weebly.com/uploads/1/3/4/1/134109001/zurapimeromot.pdf
    • https://cdn.sqhk.co/wazilisiko/jhiQe5E/gipapoxufodulapuviso.pdf
    • https://fipoxojumudex.weebly.com/uploads/1/3/4/6/134649093/zaginit-xikexigesirini.pdf
    • https://cdn.sqhk.co/goseluna/je3haEP/28640556280.pdf
    • https://cdn.sqhk.co/bosamame/egcijhg/best_caption_for_fb_picture.pdf
    • https://cdn.sqhk.co/remudejifi/fgdhbS3/90s_music_playlist_clean.pdf
    • http://frut-tree.site/how_long_does_it_take_to_cook_roast_in_crockpot_on_highql01g.pdf
    • http://gidpopiteru.com/murebizebolupemeropo4imwy.pdf
    • https://cdn.sqhk.co/kidurukazag/iihdTOt/vewunelilugoxoga.pdf
    • http://secureappeal.com/tapibebagopabobojdvm5.pdf
    • https://wujibinofowe.weebly.com/uploads/1/3/1/3/131383737/pigifatix-kuxemegasalibe.pdf
    • http://tokio-2020.fun/5944568941uvsmw.pdf
    • https://dijamolilum.weebly.com/uploads/1/3/5/3/135347404/ba3da.pdf
    • http://creditreportfast.info/merging_data_from_multiple_excel_sheetsjgblk.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • 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_off0000ee29.bin
12c3a061d66335e09fbca998fe5084706adc60a4965427186c6168bc1a5ae68a
pdf-font-stream PDF embedded font (sfnt) at offset 0xEE29 5336 bytes
font_01_sfnt_off00010055.bin
4be2f25308f5d2068c0393b87f7332362687be99c296137e198721b05adddb24
pdf-font-stream PDF embedded font (sfnt) at offset 0x10055 10516 bytes