Malicious PDF — malware analysis report

Static analysis result for SHA-256 70b1eb9b7d788cde…

MALICIOUS

PDF

84.4 KB Created: 2021-02-22 19:59:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: e4c20456e421ac905c370fb7aff77a27 SHA-1: 48c1f093ba6e4e73962a3e19881e3c59cbf221c4 SHA-256: 70b1eb9b7d788cde0e0861c77cd2f8e8e7adf92eaa668449ce42c3f605fe9a80
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI that redirects to a malicious domain, likely to host a phishing page or download further malware. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to trick users into visiting a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/123?utm_term=is+percy+jackson+accurate+to+greek+mythology PDF link annotation
    • https://cdn.sqhk.co/numiwufeguv/ggXbyjf/5984699548.pdfIn PDF document text
    • https://sogatetemurus.weebly.com/uploads/1/3/4/3/134379625/2599510.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457590/normal_5fcf79c00d107.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427273/normal_5fed775c5effd.pdfIn PDF document text
    • http://dozawudefe.iblogger.org/resume_template_microsoft_word_copy_and_paste.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371495/normal_602613a131898.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489028/normal_5fccf395e83ba.pdfIn PDF document text
    • https://cdn.sqhk.co/nupegefozub/gLcihjD/93548094408.pdfIn PDF document text
    • https://dujililapute.weebly.com/uploads/1/3/5/3/135347223/8816827.pdfIn PDF document text
    • https://depularo.weebly.com/uploads/1/3/4/6/134601330/xawezevuworovubo.pdfIn PDF document text
    • https://melijezaziwoni.weebly.com/uploads/1/3/4/8/134851492/xuxefadanuw.pdfIn PDF document text
    • https://cdn.sqhk.co/vedanoderifu/bNgf9GB/real_football_2019_apk_data_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393179/normal_5ff48ddbd5e61.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450516/normal_602a3a0429a9f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381529/normal_6033493a71256.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ripaleje.rf.gd/bootstrap_template_simple_responsive.pdfIn PDF document text
    • http://pizodixevefok.rf.gd/99204573483.pdfIn PDF document text
    • http://sisubupofi.epizy.com/59472151171.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fffa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFFA 5528 bytes
SHA-256: 480fbfe27653530433bcd7569075bb9c333d9b455bf4780e670986196fcc228e
font_01_sfnt_off000112ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112AD 3720 bytes
SHA-256: b91f3c26f37c28538ed09035cbea6f9221827f1e30b50c452f08cc820bcc167b
font_02_sfnt_off00011e10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E10 11120 bytes
SHA-256: bfbddf5180f13d4c43dc914dd3efebde37f1d466ddc5a5bf3e60f8c0bb4104bd

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