Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd68714633b8a46f…

MALICIOUS

PDF

70.9 KB Created: 2020-11-19 02:15:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 55eb7ac49f6c32d0ce7e31858b0525a7 SHA-1: dc713ba20b5e132296235fe95872d184f780f07b SHA-256: bd68714633b8a46f477645a57b42efc4dda88636fcf0158b59e8872510d16d82
154 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/123?utm_term=where+can+i+get+a+twic+card+in+lake+charles+la In PDF document text
    • https://cdn-cms.f-static.net/uploads/4387061/normal_5f9e009730826.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448339/normal_5f9f2de175b82.pdfIn PDF document text
    • https://nitiruminaxodax.weebly.com/uploads/1/3/0/7/130738633/1531605.pdfIn PDF document text
    • https://pezopipowom.weebly.com/uploads/1/3/1/4/131406060/xajuxerunuxasi-wexujazawik-xiselibu.pdfIn PDF document text
    • https://kofudavobew.weebly.com/uploads/1/3/4/6/134602163/5356513.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402481/normal_5f9ff0522c5b0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392658/normal_5fad27a8c6903.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379837/normal_5f8d22e874f31.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/falufusu/11287362447.pdfIn PDF document text
    • https://s3.amazonaws.com/wikurixobelu/27795192864.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba9c9fd5-1eec-4736-b360-7772276b4f1a/vubuvukaxijatosipil.pdfIn PDF document text
    • https://s3.amazonaws.com/mivokozibu/74223489985.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_off0000d772.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD772 5372 bytes
SHA-256: 2ca0f5fea8102cf1f2410f2593583e007d1f311015c834dd9ba5e45cdabada71
font_01_sfnt_off0000e9c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9C6 10908 bytes
SHA-256: 9662563243f7b2a7f1fba203d55fcd26cf45126e3cfc1924dc7d6489b67d02d4