Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb4bf4631d6a5820…

MALICIOUS

PDF

69.6 KB Created: 2020-12-22 14:02:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: d39d66a738fd1829a1d1bea4d70336a0 SHA-1: c14389c23f26901e03e0420131ae08faedc212ab SHA-256: fb4bf4631d6a5820b9a08e1d2e49370a14d6381e2c440ae165741753341d4ebe
96 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'Minecraft mutant animals mod 1.12.2' and embeds a URL pointing to a suspicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. No scripts were extracted, but the embedded URL is the primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafficel.ru/strik?utm_term=minecraft+mutant+animals+mod+1.+12.+2 PDF link annotation
    • https://sogatetemurus.weebly.com/uploads/1/3/4/3/134379625/bovegufet.pdfIn PDF document text
    • https://lumovomudin.weebly.com/uploads/1/3/4/7/134704265/kabozo.pdfIn PDF document text
    • https://geredape.weebly.com/uploads/1/3/4/3/134349068/856789.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/424d432b-c7bd-4b5d-94a7-091d0eeac360/36091167365.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/receptores_de_angiotensina_2.pdfIn PDF document text
    • https://s3.amazonaws.com/dozore/56843294299.pdfIn PDF document text
    • https://s3.amazonaws.com/likerajatob/60727330051.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2b69de4-b6a4-4769-8013-9dede00ea133/best_space_opera_movies.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94b8a99a-b716-42d7-b7a1-3fa3db16c563/dx2_fusion_calculator.pdfIn PDF document text
    • https://s3.amazonaws.com/buganabowumujef/example_of_quantitative_observation_science.pdfIn PDF document text
    • https://s3.amazonaws.com/zevutebulaworel/82653489545.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b5188af-7e30-4d9c-b8ef-f0a5fec7049f/anthem_farming_legendary_components.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000be4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE4D 5388 bytes
SHA-256: 7784337d1da3af2187fecd15c714d8b7ec2589ebc4d522ec48cf428f9d6e928b
font_01_sfnt_off0000d09d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD09D 10588 bytes
SHA-256: 4b029a01576917e1539bfbec11d4bf0547b9357eb3c5ec1aaf29d76862646dc8
font_02_sfnt_off0000f4fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4FC 16064 bytes
SHA-256: 8ce0575abc6f686af3c1393089841c21814f5c4838d5adbe0d649219e58da802

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