Malicious PDF — malware analysis report

Static analysis result for SHA-256 e42c9a93cb65dcbf…

MALICIOUS

PDF

150.6 KB Created: 2021-03-20 06:04:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bfa755aef8800d8dddc88b91f45947ae SHA-1: 1efa44dd8af58cb1436280c58429f0b1019358d4 SHA-256: e42c9a93cb65dcbf8aaf82b300fda34828fca7b38c6fc4ba3293e4a829966777
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a malicious domain, likely intended for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to trick users into navigating to a harmful site, potentially as part of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://druttle.ru/wix?keyword=springboard+geometry+unit+1+practice+answer+key
    • http://fbcopyright-center.com/black_theme_google_chrome_androidg4mjx.pdf
    • http://lenulari.mypressonline.com/pdf_marketing_management_kotler_15th_edition.pdf
    • http://manidat.sportsontheweb.net/unsquare_dance_piano_sheet_music.pdf
    • http://gagogepatajebe.medianewsonline.com/socrates_quotes.pdf
    • http://websporizlehd.com/59052217413fc1kd.pdf
    • http://jilet2.club/63394669657a7cto.pdf
    • http://classkaod.ru/fesaraziripejijm3kgn.pdf
    • http://libutulidux.medianewsonline.com/53898211043.pdf
    • http://lakujalinifibo.mypressonline.com/apprendre_l_anglais_facile.pdf
    • http://wirelessinfo.ru/968525662466e5lf.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/bamepofewalada/bifem.pdf
    • https://49550882-97ce-44db-a38b-6e383bb81149.filesusr.com/ugd/062c90_596b03d757c0445d8db22b35d081ddfe.pdf?index=true
    • https://6762652a-e869-40f3-960d-1446d4066230.filesusr.com/ugd/55e6b1_1ef7248ab3534acc9fdbb369237e8f26.pdf?index=true
    • https://s3.amazonaws.com/jarirotexab/crested_butte_restaurant_guide.pdf
    • https://s3.amazonaws.com/tikofaketonub/25672229315.pdf
    • https://s3.amazonaws.com/xakajoziwibi/mr_badman_kidi_ft_kwesi_arthur.pdf
    • https://6762652a-e869-40f3-960d-1446d4066230.filesusr.com/ugd/55e6b1_9f442fab54ff42c4a0ffc1f93e05e575.pdf?index=true
    • https://s3.amazonaws.com/fajixe/48715404464.pdf
    • https://50aad03f-9d2a-47e6-be13-abd12f321b17.filesusr.com/ugd/3fd638_721f1a8f13d04d3193d36b5ac65d3383.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001eaf9.bin
1e71c291736d1277ecad9a1df8bd1bde4f75ee3fe7f409d7f3f7debf9af1a3b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1EAF9 5796 bytes
font_01_sfnt_off0001feae.bin
8f131414ae0d5dbe07d21ff48628a845cba48ff81d88930d6b4c3b5cc6bb6335		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1FEAE 12288 bytes
font_02_sfnt_off0002285d.bin
923afa0172853af9e6f6fa16584a5fee1197e797136c77d4f0bd8c93e53a2130		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2285D 16276 bytes
font_03_sfnt_off00023e01.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23E01 4324 bytes

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