Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed92e7287e6f218f…

MALICIOUS

PDF

78.6 KB Created: 2021-03-02 14:41:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 4d12335e314bdcfd82dc771c0f4b9c9e SHA-1: d6575d5e352627c6ad7ad54cd421534c526cfa1a SHA-256: ed92e7287e6f218ff98adac06837393146e72d502f6d38b074ad557061d99ed5
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, mezovuduw.ru, which is likely used to host a phishing page. The PDF structure and embedded content suggest an attempt to trick users into visiting this external resource.

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://mezovuduw.ru/strik?utm_term=before+the+throne+of+god+above+shane+and+shane+lyrics+and+chords PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4420747/normal_5fcba5b62965e.pdfIn PDF document text
    • http://dawaliwiji.22web.org/zufun.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370317/normal_6010299edd39f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468836/normal_6016ebf752fc3.pdfIn PDF document text
    • http://pugisapi.mypressonline.com/nudekufuxeju.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458824/normal_5fee103c98235.pdfIn PDF document text
    • http://lomizagin.iblogger.org/animals_name_list_in_english.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377388/normal_5fc631b79f338.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/tuxexi/53744067577.pdfIn PDF document text
    • http://baxamudixilado.rf.gd/geometric_mean_maze_worksheet.pdfIn PDF document text
    • http://zikoliduxa.atwebpages.com/an_example_of_an_argumentative_essay_introduction.pdfIn PDF document text
    • https://s3.amazonaws.com/toniseligiwuzux/15050956623.pdfIn PDF document text
    • https://s3.amazonaws.com/tiduro/43085872963.pdfIn PDF document text
    • http://guwuwujuresok.rf.gd/navy_eval_examples_e6.pdfIn PDF document text
    • https://s3.amazonaws.com/gavapozalilup/pevojifelunukofi.pdfIn PDF document text
    • http://ketabigumowun.atwebpages.com/tfs_branch_merge_strategy.pdfIn PDF document text
    • https://s3.amazonaws.com/gupojakami/welarazupirase.pdfIn PDF document text
    • https://s3.amazonaws.com/dorobukasawituw/iec_62304_software_development_plan_template.pdfIn PDF document text
    • https://s3.amazonaws.com/fupanabivote/72381719778.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_off0000f3df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3DF 5636 bytes
SHA-256: 62ec01a32fad992a7744b995e7e033a2e8d59e41a98c0601296adb35b98b9d83
font_01_sfnt_off00010715.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10715 10968 bytes
SHA-256: 39937ecf0b2f181f552cf13ae55cf81e6af0533f51f630b52143a42ce14b55a3

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