Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e6008756616e4da…

MALICIOUS

PDF

73.6 KB Created: 2021-02-17 21:11:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 447a403ad62e33760afdb1424302d659 SHA-1: e7771d8cf42c68ad3718e86665579e4dcfe66dea SHA-256: 4e6008756616e4da99b3c7d36c5aacb0703e29ae790a1907865e02ed2ff851a5
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that redirects to a malicious domain, likely to deliver a secondary payload or phish for credentials. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though partially corrupted, suggests a lure related to cleaning a Keurig machine to mask the malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/strik?utm_term=how+to+clean+a+keurig+single+cup+machine PDF link annotation
    • http://pr-bux.online/mixuxafolilodeti6qebz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412894/normal_5fd9bc93c31d3.pdfIn PDF document text
    • http://zizaburixakog.iblogger.org/biriyani_movie_songs_free.pdfIn PDF document text
    • http://de-bewertung-889562.icu/74607168496m0d3b.pdfIn PDF document text
    • https://cdn.sqhk.co/miloxuso/gg2jgJo/90s_country_music_artists.pdfIn PDF document text
    • https://cdn.sqhk.co/wularumijif/38UfjcR/dadomexiwanutevini.pdfIn PDF document text
    • http://jirafka.space/sotijepepajidejupaficp43z.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446491/normal_5fd2a244429e2.pdfIn PDF document text
    • http://securityverifiedservices.com/credit_karma_score_different_than_credit_reporto5rti.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457011/normal_5fd76fbfafde7.pdfIn PDF document text
    • http://moneyindia.site/bugepovemufunodadopizubtalbj.pdfIn PDF document text
    • https://cdn.sqhk.co/xawobovuji/ef9jcjb/37159462120.pdfIn PDF document text
    • http://converstarget.ru/labyrinth_of_lost_souls_dcuo2dbdf.pdfIn PDF document text
    • http://cg-designer.xyz/bhaijaan_elo_re_kolkata_full_movie8rif2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449618/normal_5fed388b283a6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/wisoxiwojifapis.pdfIn PDF document text
    • https://s3.amazonaws.com/kifutizijebuj/30270993367.pdfIn PDF document text
    • https://s3.amazonaws.com/tosevud/zoronamuxakowirivepif.pdfIn PDF document text
    • https://s3.amazonaws.com/somisilegex/davutama.pdfIn PDF document text
    • https://s3.amazonaws.com/mijumomub/pirubewotipopibeboj.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_off0000e41f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE41F 5464 bytes
SHA-256: 6749e7a6ece0070adb83b3fe37c7d49524dff46a67c33471604b6b94efbe428a
font_01_sfnt_off0000f6a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6A1 10028 bytes
SHA-256: 001f31739bc2170df64dace7f73507895b18e93f78fa3deecc90f2b4aeacaffb

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