Malicious PDF — malware analysis report

Static analysis result for SHA-256 de9f8d3b47ea5e68…

MALICIOUS

PDF

71.9 KB Created: 2020-12-18 19:08:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 35959f2033a7f3ef8f8fb9cf8a1d3cdc SHA-1: 98484dff0d35fee46edca0362b1c26c29a692d1f SHA-256: de9f8d3b47ea5e687cf2dcfa16c5d8310f180ab039c1aa4ae65e0b011a75eac6
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 0.9997

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://trafffi.ru/strik?utm_term=hurricane+high+school+football+schedule PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4380079/normal_5f9200e73ab53.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367296/normal_5fce3fcaf1191.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://s3.amazonaws.com/xalexojaxipud/baarish_song_neha_kakkar_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/vojapu/cci_full_form_in_medical.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c211643-c2df-49b4-b6d3-45759d3db41b/9623095695.pdfIn PDF document text
    • https://s3.amazonaws.com/fenatagazise/26448803676.pdfIn PDF document text
    • https://s3.amazonaws.com/marimejerebo/free_wedding_timeline_template_word.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f1950ae-341e-457b-86b8-44943322f586/sogabomokegu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07224af4-4c0b-41fe-aa17-a30b555f8348/nissan_rogue_sport_2017_owners_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/267ab30b-68c0-42f9-a2d6-aa4fb31c4d13/relugafuf.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/human_development_report_2018_ghana.pdfIn PDF document text
    • https://s3.amazonaws.com/gulapore/lagu_berywam_o_fortuna.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_off0000cd9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD9A 5264 bytes
SHA-256: 96cea13582088fa4431aec59a83f94ee2ddbaff059851843371b84392da0024f
font_01_sfnt_off0000df6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF6F 10992 bytes
SHA-256: 2fe3b862087cd11e5d0112bdf41894b2e280fd0c098cf2e6d841f72a615ef616
font_02_sfnt_off000104dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104DD 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230