Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc4e51e1e527138b…

MALICIOUS

PDF

71.7 KB Created: 2020-12-26 19:42:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: a9ed2128dbaaf17e905cb9240bf0fdb1 SHA-1: 5372da617403ceeb9fff16a6ca1bce503a0af3e8 SHA-256: cc4e51e1e527138b8fd247a28ed92571b0c3eee6376de3346c7ccf277a9f7139
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing attempt. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. No scripts were extracted, but the presence of embedded URLs and the overall detection suggest a phishing lure disguised as an incident report.

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://trafficel.ru/aws?utm_term=incident+report+sample+in+workplace+philippines PDF link annotation
    • https://cdn.sqhk.co/kurinunuwor/ahigPjj/how_to_teaching_your_child_to_read_guide.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489835/normal_5fcc6f978b083.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383446/normal_5f8b8ec496478.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444096/normal_5f9d412b7f68b.pdfIn PDF document text
    • https://cdn.sqhk.co/lumozupa/CoHhcWf/recargar_celular_a_cuba_desde_mexico.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365653/normal_5fb3ceb987e09.pdfIn PDF document text
    • https://cdn.sqhk.co/nopawuwam/ecWQgjt/carnivores_dinosaur_hunter_3d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486987/normal_5fc542acb8a94.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415527/normal_5fbbb16b0c778.pdfIn PDF document text
    • https://cdn.sqhk.co/lilanoto/Nm6jfdA/happy_glass_full_level_111.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450864/normal_5fd218f52fb73.pdfIn PDF document text
    • https://cdn.sqhk.co/nevawanipo/RUD64Bx/last_valiant_code.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366004/normal_5f871fddca4cd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD6D 5192 bytes
SHA-256: 4ce62766a70dd60f3345b038f452a2b3c68742f367d0f4f345218da91061efe0
font_01_sfnt_off0000dee4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE4 10896 bytes
SHA-256: 2a7fbce0b8048dbe1e7bd6df4b4c44aafac7179fccea7ef35a090e3cf018dd1b
font_02_sfnt_off00010408.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10408 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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