Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2dab5b7a1ca589d…

MALICIOUS

PDF

211.7 KB Created: 2021-02-15 08:45:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 02e819f67c61ec0236b17a6267e9ec6c SHA-1: 93cf1fbcce246cca1cacd528f5c8fb46e04c8828 SHA-256: c2dab5b7a1ca589d3e49508bdb321ddf8055796c5e4d46e4b856473dfd727b44
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery. The document body, though heavily obfuscated, contains text related to streaming, which serves as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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://jottigo.ru/123?utm_term=la+creme+de+la+crem+streaming PDF link annotation
    • https://tusezewepoxir.weebly.com/uploads/1/3/4/3/134339989/5864254.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495999/normal_5fe70e0ee859d.pdfIn PDF document text
    • https://ligelonajoka.weebly.com/uploads/1/3/1/4/131407163/3120844.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451021/normal_5fe0571593d05.pdfIn PDF document text
    • https://sojozukajarab.weebly.com/uploads/1/3/4/2/134265810/14e4ac8ed354.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419623/normal_6026a6b7b938e.pdfIn PDF document text
    • http://xitaboketeloba.iblogger.org/68964903635.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/mejifavo/persona_5_kelpie_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxutedi/guess_who_printable_character_sheets_star_wars.pdfIn PDF document text
    • https://s3.amazonaws.com/fusidejebi/assr_2.pdfIn PDF document text
    • http://zujazeku.epizy.com/childhood_and_adolescence_voyages_in_development.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/gopusixe.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/chrome_remote_desktop_vs_teamviewer_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/dukavunivifa/supunenifojaj.pdfIn PDF document text
    • http://sezeludijufoma.epizy.com/10881892004.pdfIn PDF document text
    • http://jebimotanuz.rf.gd/bugifawapusox.pdfIn PDF document text
    • https://s3.amazonaws.com/vukumesoj/fiwijujazi.pdfIn PDF document text
    • https://s3.amazonaws.com/lonozote/50983113713.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_off00030197.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30197 5200 bytes
SHA-256: a881afd3cf82a0fb6039492f77a20acbc372eb3e7882d909dfa1710b1578ca97
font_01_sfnt_off0003132e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3132E 14540 bytes
SHA-256: 35a205b6c7813184d982fed488861868a01fc98374c2e930c5522b3c222ceeac

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