Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bc7d3063e92ee7e…

MALICIOUS

PDF

211.5 KB Created: 2021-01-25 00:58:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: fe71b2d791b30a0c522309fda37bc3cd SHA-1: b7cae9c958004b844fa09d750c6c12f536afd228 SHA-256: 6bc7d3063e92ee7e58cb3ce1a8749313744cd1aae1068eaae8db99dc2790d46a
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains heuristics indicating it is a phishing lure, specifically mentioning a remote support tool pretext. It also contains an embedded URI pointing to a suspicious domain, likely intended to host or redirect to a malicious payload. The ML classifier strongly flagged this PDF as malicious, supporting the phishing and potential malware delivery intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jottigo.ru/123?utm_term=minecraft+how+to+make+a+working+boat+no+mod PDF link annotation
    • http://givepamodugag.22web.org/cooling_tower_maintenance_program_and_plan_template.pdfIn PDF document text
    • https://cdn.sqhk.co/tiviluluje/hKYibS3/mad_skills_motocross_2_mod_apk_unlimited_money.pdfIn PDF document text
    • http://coins24h.com/57419285525v7eyk.pdfIn PDF document text
    • http://ig-copyrightnotice.com/80s_music_artists_female3i4wu.pdfIn PDF document text
    • https://cdn.sqhk.co/najafizox/hjP2ujc/58097334667.pdfIn PDF document text
    • https://cdn.sqhk.co/digubamot/jjJjahh/2110009219.pdfIn PDF document text
    • https://cdn.sqhk.co/memenewo/hicQ8M0/download_2020_my_country_apkpure.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kewugozosefo.epizy.com/taxegel.pdfIn PDF document text
    • http://botasalipigu.epizy.com/baselizorarugalokovop.pdfIn PDF document text
    • http://mapixuxiloko.epizy.com/96096030872.pdfIn PDF document text
    • http://xepalufozakot.epizy.com/splashtop_apk_mod.pdfIn PDF document text
    • https://s3.amazonaws.com/loranoduzuja/.pdfIn PDF document text
    • http://nulabede.epizy.com/fuxopeburu.pdfIn PDF document text
    • http://kujafugakare.epizy.com/black_car_hd_wallpaper_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/zamemigojat/khilona_1996_movie_song_bestwap.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002fdd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FDD8 5524 bytes
SHA-256: b584a88e0f3b459bc849d0d4855cc50605b43851d132635b828045f7081956ba
font_01_sfnt_off00031097.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31097 14108 bytes
SHA-256: 7eec4f4ba109822069b6cab4bfc78dfa2007bc9719fddfc12a87adee3d214338

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