Malicious PDF — malware analysis report

Static analysis result for SHA-256 e641b16fe6949d05…

MALICIOUS

PDF

65.2 KB Created: 2020-12-23 21:09:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 6368fdd4caeb51519bf59a4ff6c022bc SHA-1: d9c3c53d7ea0433166dd78328fa81bbeb4d19ae5 SHA-256: e641b16fe6949d05f6e738c645c79c4d0faa6a17d679f6bd8e0eb2f5cf9b05cb
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, with one pointing to 'trafffe.ru', suggesting a phishing or redirection scheme. The presence of embedded PDF link farm heuristics further supports the attack pattern of directing users to potentially harmful external content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://trafffe.ru/123?utm_term=chapelet+des+larmes+de+sang+rosa+mystica+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369512/normal_5f8c816e1317b.pdfIn PDF document text
    • https://cdn.sqhk.co/vuwibagula/QhYgeEG/stick_fight_shadow_warrior_hack_apk_download.pdfIn PDF document text
    • https://banafazag.weebly.com/uploads/1/3/4/3/134325205/gitipelize-lifemag-bozadagot-marut.pdfIn PDF document text
    • https://cdn.sqhk.co/fipexuwebo/ghidYhf/16214130147.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lomiwexuva/fagatoxebedixanirefiraxo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c4457ed-5e94-43be-a538-a6670543c5af/quotes_about_habits_and_growing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc69bdcc-7884-4ce4-8656-bb41d12b9d69/zunibizubikoso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16c73d25-b431-4108-b53e-3bdae56ccc67/123_movies_free_spider_man_far_from_home.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/649a68cc-5eba-45f1-8b95-f3d25443cff5/famixakado.pdfIn PDF document text
    • https://s3.amazonaws.com/nupotukig/lixamekoparuda.pdfIn PDF document text
    • https://s3.amazonaws.com/geraromu/46478977398.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7fce8242-f8a5-4459-8bab-2979e0ee43f2/28780316966.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_off0000bcdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCDC 5576 bytes
SHA-256: e745b8b9009e9e439fc80a257a95408febf27e13b42e0853b105b5d94ed19d14
font_01_sfnt_off0000cfac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFAC 12372 bytes
SHA-256: c8d530717b69fa659d24fb9c3e4700802a4e86944157c18e0ed3cf336f9d4a0d

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