Malicious PDF — malware analysis report

Static analysis result for SHA-256 848482880150b26f…

MALICIOUS

PDF

85.0 KB Created: 2021-04-06 14:40:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ff033db8ef5adec17961bf989726e32 SHA-1: 6dc95ffdda3fbc5df030846596242c690cbc730a SHA-256: 848482880150b26f75e3a4481fb68e8e5d513656907f696cdac3fd525d6d7c8e
136 Risk Score

Malware Insights

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

The PDF document contains a lure related to Windows settings, likely to trick users into clicking a malicious link. The embedded URL points to a suspicious domain, and ClamAV detection confirms its malicious nature. The document's content and the presence of an external URI suggest a phishing attempt to redirect users to a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://jacksth.ru/strik?utm_term=how+to+open+settings+in+windows+10+using+run
    • http://jejederepox.medianewsonline.com/72610817684.pdf
    • http://insta-sale.site/jifafujunuxugky2b.pdf
    • https://cdn.sqhk.co/lolatonuvesa/jhgiieS/jebuxevokiwowejutepa.pdf
    • http://xeniveperovabef.sportsontheweb.net/biwalikapidivoxazekoleku.pdf
    • http://rifubabesepa.iblogger.org/hoedown_sheet_music_whose_line.pdf
    • http://legiontry.online/southern_nevada_food_handlers_card_answersl0sid.pdf
    • http://yudekor.ru/drum_kit_for_sale_olxogef1.pdf
    • http://fepemewavitik.66ghz.com/cbus_mysuper_performance.pdf
    • http://probnik1313.tech/48447898131sobhb.pdf
    • http://goproits.com/vulanaropedamewirotagam0so8e.pdf
    • https://cdn.sqhk.co/letarezetap/CKsihKb/40504930244.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://3228dc58-b2c1-4aed-ac20-03fc52793822.filesusr.com/ugd/43afbb_9414d4285d6e48a2844aa9da719d6bef.pdf?index=true
    • http://wusuposakatoxel.myartsonline.com/applied_behavior_analysis_john_o_cooper.pdf
    • http://wigezenefibi.epizy.com/7238139476.pdf
    • https://1df32be7-5e6a-491e-80e4-5c558052ef26.filesusr.com/ugd/e02e08_cb584566c3704af0a04a53f81804c89e.pdf?index=true
    • https://8eefcaf3-52f5-4123-8be5-b1f0aaeea45e.filesusr.com/ugd/1d3654_da465dab1f2f41c6a42e392f618f9a9d.pdf?index=true
    • https://6b2d4799-12fc-456d-8881-596234ac9a0a.filesusr.com/ugd/ae8ff6_d2e65a321e84416983481d334f96473f.pdf?index=true
    • http://resaralamefevep.epizy.com/pumarazitetu.pdf
    • http://kalesas.rf.gd/bsc_business_information_systems_ucc.pdf
    • https://8eb0ff2f-1b5f-41fb-a82b-bf279dc7f43e.filesusr.com/ugd/868f76_22c03463a5d549078500c1d32db4ebdc.pdf?index=true
    • http://jizipok.rf.gd/iliade_baricco_gratis.pdf
    • http://pifazudiso.rf.gd/83300671422.pdf
    • http://rowovotufuru.epizy.com/navesedokokifu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000101e3.bin
35eea0214330fa1983edd43c2e2b54941f76157df981745932e834d4384b5945		 pdf-font-stream PDF embedded font (sfnt) at offset 0x101E3 5012 bytes
font_01_sfnt_off00011315.bin
73ba56fe4d25ef58463b7fb6b13bc01a9d82a34b54f0bc7822735ead1c13ba50		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11315 10944 bytes
font_02_sfnt_off0001386b.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1386B 4324 bytes

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