Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7b3dcea34195ed2…

MALICIOUS

PDF

74.6 KB Created: 2021-02-21 09:13:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: f4b7cd3ef2830dd51b8d5579cfdfce2e SHA-1: 846e5466533c3bf50023faeaf54a34605f5ef219 SHA-256: e7b3dcea34195ed2e4c43f8d4b90e1c1b8c9e1a6ee396ab1353fe1b11f3520be
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that leads to a suspicious domain, identified by heuristics and a machine learning classifier as malicious. The document body, though heavily obfuscated, suggests a lure related to "Twelfth Night". The presence of an external URI points towards a phishing or credential harvesting attempt.

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://maypoin.ru/wix?keyword=twelfth+night+plot+diagram PDF link annotation
    • http://tularafujebok.iblogger.org/blank_spelling_test_sheet.pdfIn PDF document text
    • http://zifasito.22web.org/conclusion_of_digital_lab_report.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403565/normal_5ff77a48d8874.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/najubu/90003185314.pdfIn PDF document text
    • http://jagogapibibolin.epizy.com/bisalloy_sheet_thickness.pdfIn PDF document text
    • https://s3.amazonaws.com/wizedumi/18132906916.pdfIn PDF document text
    • https://s3.amazonaws.com/samopakamefap/juferepusuzeli.pdfIn PDF document text
    • http://tipunogat.rf.gd/cgegis_claim_form.pdfIn PDF document text
    • http://gadabejevetel.epizy.com/43582536290.pdfIn PDF document text
    • https://s3.amazonaws.com/palevijuj/backward_counting_20_to_1_worksheet.pdfIn PDF document text
    • http://nabavewixetutax.epizy.com/69968094306.pdfIn PDF document text
    • http://zalowakudedakov.rf.gd/oporadhi_re_bengali_song_free.pdfIn PDF document text
    • https://s3.amazonaws.com/lebejos/they_poured_fire_on_us_from_the_sky.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/ip_word_family_worksheets_free.pdfIn PDF document text
    • http://domojemaki.rf.gd/3708082864.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_off0000e79b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE79B 5320 bytes
SHA-256: 19ea6f4740ca3b5eb6ee664d1dfd4acf85ef214980d06b62a6c258fc6a55b4a8
font_01_sfnt_off0000f99f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF99F 10384 bytes
SHA-256: bfc92284d041599c025039ae99cf9b124733ec1d105b05de2ff9369d69449a63

Open this report in the interactive analyzer, or submit your own file for analysis.