Malicious PDF — malware analysis report

Static analysis result for SHA-256 93e0c39d25ed8662…

MALICIOUS

PDF

72.6 KB Created: 2020-11-22 02:09:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 47419bba7442f6226f16b0d0b50add83 SHA-1: b1bdf2cb004bc174d32d4b17106c7df088dacff9 SHA-256: 93e0c39d25ed8662a8bb6890d03cd03a00b4aaa1c2c69c4b78da21bc936ab322
156 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous external links, with a significant number pointing to Weebly and S3 domains, suggesting a link farm or redirection strategy. The document body, though heavily obfuscated, references 'David and Bathsheba movie', likely a lure to attract victims to the linked malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://trafffe.ru/aws?utm_term=david+and+bathsheba+movie PDF link annotation
    • https://tedomidile.weebly.com/uploads/1/3/2/7/132712102/e52a83846210.pdfIn PDF document text
    • https://badipixurer.weebly.com/uploads/1/3/4/4/134456466/mukaso.pdfIn PDF document text
    • https://mefopati.weebly.com/uploads/1/3/4/8/134866381/jubesilesi_balitifegido_lejaminazav.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366389/normal_5f8713fb8020b.pdfIn PDF document text
    • https://pilewamef.weebly.com/uploads/1/3/4/8/134849526/vovarufesodu-mozugufola-jukofive.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376098/normal_5f922b2fbac57.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/lanowilovuviwib/age_of_wushu_dynasty_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/fekaduvopigab/67064715409.pdfIn PDF document text
    • https://s3.amazonaws.com/putelekireza/cpu_z_apk_download_for_windows.pdfIn PDF document text
    • https://s3.amazonaws.com/ditiruz/64374101330.pdfIn PDF document text
    • https://s3.amazonaws.com/mejifavo/toxonot.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_off0000dffc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFFC 5136 bytes
SHA-256: 29c32388767a960981dbdafaf75faa9236e079bbcb29a0ee88ba11b96fd48203
font_01_sfnt_off0000f155.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF155 10728 bytes
SHA-256: 1ee81007bc0337048b828c8d51d670945fcf94d63e63f0334c59a87332683c70

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