Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5768f4298ca4a7f…

MALICIOUS

PDF

94.0 KB Created: 2021-02-28 20:46:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: f88af8e1e07450cb561eeeb4712f9d6d SHA-1: 0d6ba4c87cb35551efe786ecd445d29568a2d85d SHA-256: b5768f4298ca4a7fe0515b6f7489268108a735de8290c4c0f92f12c5c45eae0e
104 Risk Score

Malware Insights

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

The file is classified as malicious by ML and ClamAV, and contains an embedded URI pointing to a suspicious domain. The presence of a 'download button' heuristic further suggests a malicious workflow. While no scripts were explicitly extracted, the PDF structure and embedded URI indicate an attempt to redirect the user to a potentially harmful site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://xajibur.ru/wix?keyword=how+to+win+survivor+on+yahtzee+with+buddies PDF link annotation
    • http://sejapuzisetanut.22web.org/17855515851.pdfIn PDF document text
    • http://zamuxodub.22web.org/visual_studio_code_formatter_vue.pdfIn PDF document text
    • http://dewisazovuvoxi.mywebcommunity.org/cbse_grade_3_maths_textbook.pdfIn PDF document text
    • http://bidizujimon.getenjoyment.net/tirirafusejavesubokowutep.pdfIn PDF document text
    • https://cdn.sqhk.co/rifarako/ibJ5haP/nebabibetetuverodokugib.pdfIn PDF document text
    • http://zevewidojodot.mywebcommunity.org/dungeons__dragons_3_the_book_of_vile_darkness_cast.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/wixanarer/visa_invitation_letter_business_template.pdfIn PDF document text
    • https://s3.amazonaws.com/remavuj/likubupajipov.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/96259826413.pdfIn PDF document text
    • https://s3.amazonaws.com/ninasivol/borgen_season_3.pdfIn PDF document text
    • https://s3.amazonaws.com/wuvepilamamuse/94057767394.pdfIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/485182348.pdfIn PDF document text
    • https://s3.amazonaws.com/fapaga/abrahaminte_santhathikal_movie_720p.pdfIn PDF document text
    • https://s3.amazonaws.com/biwuwukesazef/amenaza_de_aborto_definicion.pdfIn PDF document text
    • https://s3.amazonaws.com/zuniverijesud/child_support_guideline_schedule_louisiana.pdfIn PDF document text
    • https://s3.amazonaws.com/wozoxub/classic_warlock_guide.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001302b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1302B 5288 bytes
SHA-256: f751a31e7e9f18665fd9202f7ce4410ebc44e232d42a225f364e12c4981f9c00
font_01_sfnt_off00014239.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14239 11412 bytes
SHA-256: e38854a54205f0e935372b6a1096b31735cc9d5a4213672ea0667c39a0f563be

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