Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8d72c3d25334bfc…

MALICIOUS

PDF

71.6 KB Created: 2021-02-19 05:04:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: fe9c000afdcd1c12d154602926fe875b SHA-1: d4cc2a6ceedd7537b1dcb2ece04864277bc1d91b SHA-256: d8d72c3d25334bfc79cbdc32bd7844223908c7d00ac0b0fad58fb19869973782
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 URI pointing to a suspicious domain, identified by heuristics and a machine learning classifier as malicious. The document body, though heavily obfuscated, suggests a lure related to streaming content. The presence of external URIs and the overall malicious classification indicate an attempt to redirect the user to a harmful site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/123?utm_term=what+if+daniel+radcliffe+streaming PDF link annotation
    • https://cdn.sqhk.co/kowazodonaf/RYUTnd1/baby_panda_hospital_apk.pdfIn PDF document text
    • http://joxopenizimili.iblogger.org/android_studio_vector_asset_size.pdfIn PDF document text
    • https://cdn.sqhk.co/fasisela/7jhhbje/revanodomitofati.pdfIn PDF document text
    • http://nusamovepi.22web.org/lutufemokaxorev.pdfIn PDF document text
    • https://cdn.sqhk.co/zujumatatub/hc3MifS/fidines.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/labitajaxatufib/vusorovenasesef.pdfIn PDF document text
    • https://s3.amazonaws.com/zamemigojat/fapenagenokimipa.pdfIn PDF document text
    • https://s3.amazonaws.com/nagudo/dapivoxupewugoxuza.pdfIn PDF document text
    • http://deravamosu.rf.gd/learn_automation_extent_report.pdfIn PDF document text
    • https://s3.amazonaws.com/gedexim/65701483417.pdfIn PDF document text
    • https://s3.amazonaws.com/jofunozuzof/lozawazatuxozijokob.pdfIn PDF document text
    • https://s3.amazonaws.com/kosamupim/97477313448.pdfIn PDF document text
    • https://s3.amazonaws.com/fifuto/77138524099.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/89635408954.pdfIn PDF document text
    • https://s3.amazonaws.com/pibajuwi/contact_us_form_css_template_free.pdfIn PDF document text
    • http://dereduvate.epizy.com/bihari_gana_song.pdfIn PDF document text
    • https://s3.amazonaws.com/lusabifef/rofikepininulovovikon.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_off0000dacb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDACB 5448 bytes
SHA-256: d5d5a5b66e2628eeaafe86598d6ca97eaf32cfadee4f850383539575e03252b0
font_01_sfnt_off0000ed35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED35 10648 bytes
SHA-256: 8c83bc6d796b87fdd47bd7d284a148ba756285c8c89acb93b3aa2ee2c28598b5

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