Malicious PDF — malware analysis report

Static analysis result for SHA-256 d47724fc900b761c…

MALICIOUS

PDF

105.1 KB Created: 2021-02-27 12:57:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 763ab7e4ce1b362305b3be72882b4a36 SHA-1: 74cab28ece9be8255f30c1937babfedb6bf82f4d SHA-256: d47724fc900b761ce3493517d48f5a01ca8a9010dab26d95a5558caa0de1961f
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by ML and ClamAV as malicious. The document body, though heavily obfuscated, suggests a lure related to a movie review, which is a common tactic for phishing or malware delivery. No scripts were extracted, but the presence of external URIs and the high ML score indicate a strong likelihood of malicious intent.

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://maypoin.ru/wb?keyword=invisible%20man%202020%20parent%20review PDF link annotation
    • https://cdn.sqhk.co/feguzuvubut/X3gctow/91146506104.pdfIn PDF document text
    • https://cdn.sqhk.co/jiloduvunilu/Qhhhjjb/fireman_s_hatchet_mods.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426954/normal_602c676e01700.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366017/normal_6008c35986fd7.pdfIn PDF document text
    • https://zodutobaziji.weebly.com/uploads/1/3/1/4/131408241/cf91ff0.pdfIn PDF document text
    • http://zoom-omsk.ru/ultrasound_scan_report_during_pregnancyeuvu5.pdfIn PDF document text
    • https://rupogasonewu.weebly.com/uploads/1/3/4/6/134653860/sogofozodume-xesavajije-kitonore.pdfIn PDF document text
    • https://cdn.sqhk.co/lagidexetin/giligic/jutukeliselijebosafux.pdfIn PDF document text
    • http://fufibubesex.iblogger.org/amelie_piano_noten_fr_anfnger.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391642/normal_600f7940e67bf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392656/normal_5fccdaedb4592.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/ditiruz/issuu_books_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zagapaxa/2823507675.pdfIn PDF document text
    • https://s3.amazonaws.com/foneniz/79764407999.pdfIn PDF document text
    • http://suwiwozeko.rf.gd/freeze_spreadsheet_excel_2010.pdfIn PDF document text
    • http://suziwifu.rf.gd/where_to_put_inventory_on_balance_sheet.pdfIn PDF document text
    • http://nozaleb.rf.gd/73961273861.pdfIn PDF document text
    • https://s3.amazonaws.com/sogovekevi/sebipoganesib.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_off00015cc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15CC4 5468 bytes
SHA-256: c0ff4dfc8ac3669a5f710b18788887f0527e7267bc4938622765c7c5df9440c4
font_01_sfnt_off00016f51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16F51 11500 bytes
SHA-256: 7db8ac8e4e284611a7f9d1506d446a2b60f4cc67a136062ff1ced77cb8994d18

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