Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9444d3ec890a13a…

MALICIOUS

PDF

71.2 KB Created: 2021-02-18 01:52:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 9ae83f7097c94e850569ab60d1416687 SHA-1: 93c440d7a9828dcb2991a841dc8e8f37cd8ae2c2 SHA-256: c9444d3ec890a13a0ae0a6434eb218e50880c4317d4a01b072702f093b072135
96 Risk Score

Malware Insights

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

The file was detected as malicious by a ML classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, contains references to 'Lyman reloading press kits' and 'wkhtmltopdf', suggesting a lure document. No scripts were extracted, but the presence of embedded URLs and the overall detection profile strongly suggest a phishing or malware distribution 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://seumenha.ru/strik?utm_term=lyman+reloading+press+kits PDF link annotation
    • https://cdn.sqhk.co/velizovatim/gjY8BOM/90841672192.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460981/normal_601bcb126b526.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375210/normal_6005d68062df4.pdfIn PDF document text
    • https://cdn.sqhk.co/kixikeli/ifFjaif/57621373542.pdfIn PDF document text
    • http://givarixexav.iblogger.org/bloody_roar_3_ppsspp_iso_android.pdfIn PDF document text
    • https://cdn.sqhk.co/nivurerazusa/fMidb04/tesco_raspberry_jam_doughnuts_calories.pdfIn PDF document text
    • https://cdn.sqhk.co/gugusobazu/gegjjdG/how_to_make_jam_filled_cupcakes.pdfIn PDF document text
    • https://cdn.sqhk.co/pometobab/ejevyjg/bcg_model_youtube.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415783/normal_5fdc72db8336e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475382/normal_5ff0f1d191015.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448345/normal_5ff21f4e29ef4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385880/normal_5fd3309cdbfa7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380076/normal_5fe4b4634aea1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://puravusixatix.epizy.com/dadiwolu.pdfIn PDF document text
    • http://jaxojuru.rf.gd/project_arduino_uno.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_off0000cef9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEF9 5388 bytes
SHA-256: c986da0805c04417cd33b400cbb5c294004a46422e854b11dc2be1d1a3645944
font_01_sfnt_off0000e13d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE13D 14992 bytes
SHA-256: 9c00967c650d74c4c909a88d1030080ef4953624645a57c05dc5c2d354d81823

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