Malicious PDF — malware analysis report

Static analysis result for SHA-256 673545c81dcae796…

MALICIOUS

PDF

73.3 KB Created: 2021-01-04 11:24:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 01747ce1437855ffe2782570ea1f1a9c SHA-1: 5bc91a53b72d04099944483f97efca74092492ea SHA-256: 673545c81dcae79697a519b47762af850c3444ac11c482c2cfd3ca7d48b382b4
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. An embedded URI points to 'trafffi.ru', suggesting a phishing or redirection attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing lure, likely designed to trick users into visiting a compromised site.

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/aws?utm_term=ear+speaker+test+android PDF link annotation
    • https://cdn.sqhk.co/muwesisokim/AicrXjh/sunday_game_ringtone_for_iphone.pdfIn PDF document text
    • https://cdn.sqhk.co/kufalavoxig/rZahjVv/jesuzoxugiwuwarud.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387571/normal_5fa024f55258e.pdfIn PDF document text
    • https://cdn.sqhk.co/wodabumamuv/gehjC8v/school_days_lyrics_joan_jett.pdfIn PDF document text
    • https://cdn.sqhk.co/dasulujina/f8hchaW/71150762666.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369508/normal_5fe433041a49f.pdfIn PDF document text
    • https://cdn.sqhk.co/dedizajo/Trhhgec/nifalevonajimar.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373239/normal_5fca015e20472.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/suzeduselu/assassin_s_creed_odyssey_olympics_quest.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/justice_league_dark_full_movie.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1b2d19f-1702-4112-9cdd-57dce608842b/benaxubefit.pdfIn PDF document text
    • https://s3.amazonaws.com/kegubinefuda/l1084s_datasheet.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_off0000e289.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE289 4944 bytes
SHA-256: 295a87c00729f597ce6087dc7f55abece4b052c96abf29180017f14af6089b20
font_01_sfnt_off0000f36c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF36C 11036 bytes
SHA-256: 521efddf803ad7d0d46d63a5f561c6bff46998d73c8da58cedc13e0d3a499d39

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