Malicious PDF — malware analysis report

Static analysis result for SHA-256 067148e28c5facd0…

MALICIOUS

PDF

69.2 KB Created: 2021-02-21 09:38:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 642d3a64936ce479cf346874a2e86e69 SHA-1: 2bd873fbc5de2b4fb5972bbea274b073dcf50534 SHA-256: 067148e28c5facd0b50ad3136100a51499bed639221862b43c21359969584b0d
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, suggesting a phishing or credential harvesting attempt. The embedded URL and ML classifier strongly indicate malicious intent. Although no scripts were extracted, the PDF structure and the presence of malicious links point towards a phishing lure designed to redirect users to 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://crophysi.ru/wb?keyword=what%20are%20the%20generic%20structure%20of%20historical%20recount%20text In PDF document text
    • http://instapriz.website/best_afro_pop_beats33b15.pdfIn PDF document text
    • http://pro-komp-master.website/kipariwukupae0y4w.pdfIn PDF document text
    • http://evakuator-uga.ru/xukabonanamot2w6lv.pdfIn PDF document text
    • http://lenorimageb.iblogger.org/1939471367.pdfIn PDF document text
    • http://bisipatelaloguj.66ghz.com/google_analytics_presentation_template.pdfIn PDF document text
    • http://fruitnaturs.space/world_conqueror_1945yfsps.pdfIn PDF document text
    • http://dkmz1.club/lapababipebisofatoguwixe197s.pdfIn PDF document text
    • http://idealica-itufficiale.website/lugalalafafikitodorodlw45.pdfIn PDF document text
    • http://luminar2-download.xyz/automotive_battery_size_chart6fcxk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jedigox.epizy.com/moxuxuxaturalape.pdfIn PDF document text
    • https://s3.amazonaws.com/gedexim/65701483417.pdfIn PDF document text
    • http://wosamufudov.epizy.com/bharatnatyam_dance_form.pdfIn PDF document text
    • http://tefinavi.epizy.com/vidmate_apk_for_pc_windows_8._1.pdfIn PDF document text
    • https://s3.amazonaws.com/timeziso/buxulasupilopak.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/luigi_mansion_3_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/gawabog/luxibotuzek.pdfIn PDF document text
    • http://duxuramubot.epizy.com/fawenakivukizelo.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/online_b._ed_cet_form_2018.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_off0000d168.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD168 5224 bytes
SHA-256: 296c96439c66feff08eaabf360bc1024890e8149a24b877bab23dd24f0598521
font_01_sfnt_off0000e342.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE342 10632 bytes
SHA-256: b0536b622dfaac1a1120bd7a1e28e07d37d91564b196f0c56e23cb3f97a1f14b