Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0a5e871cad87917…

MALICIOUS

PDF

83.4 KB Created: 2021-02-26 20:14:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 650652c56a1c8f8836e729c5b8029e67 SHA-1: 306229e774a57a860eaa8e4d70b0b5270df960c6 SHA-256: c0a5e871cad87917d727ee264d64d9e4d33e6ab7609256171e05ae8190f9513d
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://dugedepap.ru/wix?keyword=the+glass+menagerie+discussion+questions+and+answers PDF link annotation
    • http://betijeduw.getenjoyment.net/konosuba_light_novel_english.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365576/normal_6007d4445943d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484356/normal_600417a07fce9.pdfIn PDF document text
    • https://cdn.sqhk.co/molodomo/fRhjZhi/emergency_ringtone_download_mp3.pdfIn PDF document text
    • https://cdn.sqhk.co/joduragenep/haCIZid/21125414091.pdfIn PDF document text
    • http://nakekizedexu.getenjoyment.net/how_do_you_classify_training_needs.pdfIn PDF document text
    • https://cdn.sqhk.co/wogokodu/9jahihh/27752483984.pdfIn PDF document text
    • http://punejew.mygamesonline.org/how_does_drinkwell_pet_fountain_work.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lobopekogolo.onlinewebshop.net/81056172821.pdfIn PDF document text
    • http://pabewuvuxaf.onlinewebshop.net/ge_spacemaker_microwave_lights_and_fan_not_working.pdfIn PDF document text
    • https://s3.amazonaws.com/verirejon/ancient_egypt_ppt_template.pdfIn PDF document text
    • http://zowofiz.myartsonline.com/great_writing_1_5th_edition_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/rolefosiju/26155696635.pdfIn PDF document text
    • https://s3.amazonaws.com/wowonesoribu/filezilla_ubuntu_17._10.pdfIn PDF document text
    • https://s3.amazonaws.com/rekorewexidiwo/83159313671.pdfIn PDF document text
    • http://satidowiruv.rf.gd/86589889558.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_off00010a18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A18 5520 bytes
SHA-256: 2bae7b4bd83734d7978919d5f201aacf311faa86050c2589a3982d4801dac660
font_01_sfnt_off00011cbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CBD 10424 bytes
SHA-256: 8bf6eba9bff840a598cca5482c5d0b52ed0f910f9b99178be573f4fa17eb34c6