Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b227dc34b809f9c…

MALICIOUS

PDF

74.1 KB Created: 2021-03-08 22:54:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: c59132c78cefbdb7f07ea50e617a45dd SHA-1: 95a184f36f0f8e0fa14135df5f2114102f989b91 SHA-256: 1b227dc34b809f9c2fb01158642982e044a9d220f5dd080ecefb50646f6197ce
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely used to deliver a malicious payload or conduct phishing. The document body, though heavily obfuscated, contains text related to a movie title, suggesting a lure to entice users to click the malicious link.

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://pelibifir.ru/123?utm_term=bul+bul+kannada+full+movie+free PDF link annotation
    • http://scm03.ru/1918075437aglwr.pdfIn PDF document text
    • http://healingtunes.ru/noruwazv9nr.pdfIn PDF document text
    • http://devlp.design/23838694730bs75t.pdfIn PDF document text
    • http://verifybadgehelp.com/83171186066bfvog.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
    • https://uploads.strikinglycdn.com/files/180c5f76-d647-478a-95b2-e0862c2c9984/lodedasisu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ad63137-6a5b-436d-a15d-9b9ac2b828ea/how_to_put_ninja_blender_on_base.pdfIn PDF document text
    • https://s3.amazonaws.com/nufidibodudulad/9071680697.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b9837d66-e45c-43a5-a0e5-cc0f79eae6e8/note_speller_book_2.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/92668280430.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40336fbc-36bc-4d74-a3d3-ea04d9b58e95/crazy_love_quotes_for_instagram.pdfIn PDF document text
    • https://s3.amazonaws.com/pasutiz/ccna_security_exam_fees_in_india.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fbb16c89-4f5a-4961-9b5a-5c9d1117164b/xujifeminelune.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da4805b2-6522-49ac-ace7-813e1e818acc/midi_to_sheet_music_notation_software.pdfIn PDF document text
    • https://s3.amazonaws.com/mejigavukolu/5897515569.pdfIn PDF document text
    • https://s3.amazonaws.com/lusegokaves/79712370826.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/344ea8aa-39f7-483b-b5f7-30072e6824d6/warogasavojuw.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d6cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6CC 4988 bytes
SHA-256: d626b42a58f6954a079ee92b8364acf5b55595ca7780a32081bad301e8672799
font_01_sfnt_off0000e7af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7AF 11276 bytes
SHA-256: e6c14251dff6ef494218d29716380f6f8d8ba9d319e531bdc2229cfb100bf0d2
font_02_sfnt_off00010d1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D1F 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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