Malicious PDF — malware analysis report

Static analysis result for SHA-256 2707d3f2a71f79c4…

MALICIOUS

PDF

70.6 KB Created: 2020-11-25 15:54:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 363ec2751d269ecaf5f5b9269610402b SHA-1: df26bee106e054a661486349b4f1029eef90cd14 SHA-256: 2707d3f2a71f79c48bab90c91630256cea629f9b8da2d2a28260ece9d1321da5
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://traffine.ru/aws?utm_term=icy+veins+paladin+leveling+guide+classic'. ClamAV also detected the file as Pdf.Phishing.Trojan. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of a malicious redirector URL indicates an attempt to lure the user to a harmful site, consistent with phishing or malware delivery.

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
  • 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://traffine.ru/aws?utm_term=icy+veins+paladin+leveling+guide+classic In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/napisakaluja/wuwipenazoxojewef.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwenoxuzasila/chillara_gang_dj_video_song.pdfIn PDF document text
    • https://s3.amazonaws.com/kibavutibeved/posabapipesamunabewof.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/makalah_politik_identitas.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/2385058331.pdfIn PDF document text
    • https://s3.amazonaws.com/lazolu/vatican_news_app.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dbbfd830-94ea-4afe-9e6f-1e3557685d40/vemajipe.pdfIn PDF document text
    • https://s3.amazonaws.com/luropi/19188540309.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/audit_sumber_daya_manusia.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubatebedoxez/40370923206.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00e4ed3e-b9b8-4813-bbc3-e1f59f8424df/tree_drawing_personality_test.pdfIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/local_guide_level_7_perks.pdfIn PDF document text
    • https://s3.amazonaws.com/tojabixefova/75081310201.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_off0000d7bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7BC 5244 bytes
SHA-256: ab71bacbb65fb8f6dca79d432dafe253603001f9ce68844e8aca7e400f1b4746
font_01_sfnt_off0000e9bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9BD 10456 bytes
SHA-256: 63bd8e2a13765974102b8b75aa2a7baa6442ffebaa6972ce91cb494ee8ef77fc

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