Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a59e30918e7dfa0…

MALICIOUS

PDF

73.8 KB Created: 2021-01-08 15:11:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: c667db1493334dfc3e8430cc4341cc37 SHA-1: c262ede518e112dbcda6f1c6240d73fcb2a3e46e SHA-256: 0a59e30918e7dfa0652d3a1b7ca7875997b18be471e9041afc59c2d9f5ce401e
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, and the document body text, though heavily obfuscated, appears to reference 'Flight simulator x for pc'. ClamAV detection and ML classification strongly indicate malicious intent, likely for phishing or malware delivery. No scripts were extracted, but the presence of external URIs suggests an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://trafftec.ru/aws?utm_term=flight+simulator+x++for+pc PDF link annotation
    • https://cdn.sqhk.co/janonaset/hbDgchd/nawoxuzivaj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426261/normal_5fc0a1438288d.pdfIn PDF document text
    • https://cdn.sqhk.co/webaxepibi/jjhhkaC/78431299560.pdfIn PDF document text
    • https://cdn.sqhk.co/pakiwujipubi/hjfQQgi/ninja_blender_maker.pdfIn PDF document text
    • https://cdn.sqhk.co/rurokusulos/Pgfgic6/badlands_camo_clothing_review.pdfIn PDF document text
    • https://cdn.sqhk.co/jerowerar/VhjhjWV/history_of_breast_cancer_on_tamoxifen_icd_10.pdfIn PDF document text
    • https://cdn.sqhk.co/takularozo/h3ihZwA/robzone_douro_xclean_profi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449618/normal_5fe35920d6f9c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449774/normal_5ff23fbc09398.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447880/normal_5fbdbac44da47.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369512/normal_5faea90f124a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382408/normal_5f9b6146e4708.pdfIn PDF document text
    • https://cdn.sqhk.co/larovejadeb/djakjh3/domino_s_pizza_hawaii_avenue.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454299/normal_5fbf4eb1d6ea5.pdfIn PDF document text
    • https://cdn.sqhk.co/vipabure/rwigSjj/xuzazifabowuwojupi.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/nijosinizo/extreme_pamplona_unblocked.pdfIn PDF document text
    • https://s3.amazonaws.com/gewisetug/nickelodeon_logo_history_1977_to_present.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_off0000e263.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE263 5452 bytes
SHA-256: dbe0a7cd463c198d025d863239ef578a8bfeba0c039efdf94634b236916ecbdb
font_01_sfnt_off0000f4cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4CD 10916 bytes
SHA-256: d9e4ccb8ec1e89e8eaf1913d6c656e8c4bf337317183eb32963cbae0abd1d5c9

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