Malicious PDF — malware analysis report

Static analysis result for SHA-256 15fab19d1e41c296…

MALICIOUS

PDF

70.2 KB Created: 2021-01-23 09:36:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: ecb13df2f14a51b212826da527002247 SHA-1: c879fb6a94b11842e3ca51f2f1bc4d27f0a78e1e SHA-256: 15fab19d1e41c29688ddb9dfd4be529d3ccb092f40b457270ff40adda995b586
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is identified as malicious by multiple heuristics and a machine learning classifier. It contains an embedded URL that leads to a suspicious domain, likely intended for phishing or malware distribution. The document body, though partially corrupted, suggests a lure related to game cheats, aligning with common social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/123?utm_term=soccer+stars+cheats+and+hints PDF link annotation
    • https://cdn.sqhk.co/dutaxato/ieicxic/tap_tower_isle_tower_builder_mod_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487631/normal_5fdc81f5b5f2b.pdfIn PDF document text
    • https://cdn.sqhk.co/dawafawux/icFhjl0/hitman_go_walkthrough_4-_12.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406809/normal_5fcf686759c79.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457563/normal_5fd11cdea1293.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386091/normal_5fd728e051134.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369505/normal_5fed922dd0520.pdfIn PDF document text
    • https://cdn.sqhk.co/lolajelor/jgSRghl/91271482442.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370092/normal_5fe45b9a19e7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403679/normal_5fd9a2266599e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465924/normal_5fef10849d9b9.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/gomaxod/jardine_matheson_holdings_ltd_annual_report_2016.pdfIn PDF document text
    • http://nisebot.epizy.com/chrome_setup_for_pc_filehippo.pdfIn PDF document text
    • https://s3.amazonaws.com/tumuzu/mockito_mock_void_method_doanswer.pdfIn PDF document text
    • https://s3.amazonaws.com/rakabexozu/timiga.pdfIn PDF document text
    • http://sikejilewiz.epizy.com/present_perfect_active_and_passive_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/nolarifaforuxop/vodomajozimu.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_off0000d7e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7E6 5100 bytes
SHA-256: d3d35499bf02e8151f4c5dfe46640d09f7c4d83f634c6b1b9b36c3a79eb3a59c
font_01_sfnt_off0000e933.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE933 10172 bytes
SHA-256: 0306d19428a8a99a5645d0739d3156900f468654980490d29aacce0a170cb446

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