Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ad5fc1c08fe2fe1…

MALICIOUS

PDF

90.7 KB Created: 2021-03-24 21:59:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: be4dff1d059a9db12778460408aa186f SHA-1: b8a8df8b4790ccb5838348d8611f02469ddfa498 SHA-256: 6ad5fc1c08fe2fe1fadd0031364c413d03fe5f2d688ea8c35cc1e90e00ec7c59
134 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external URIs, many hosted on disposable domains, suggesting a link farm designed to distribute malware or phish for credentials. The document body, though heavily obfuscated, contains references to 'Gangstar vegas apk download highly compressed', indicating a lure for potentially unwanted or malicious software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://resalured.ru/wix?keyword=gangstar+vegas+apk+download+highly+compressed PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4484994/normal_5ff1d0f16935f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412164/normal_5ffd5518b21e0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393644/normal_5ff189db02359.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisi/32604709975.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483336/normal_5ff8a0050fa99.pdfIn PDF document text
    • http://usesoda.pro/27748141328eead.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379844/normal_6009029069089.pdfIn PDF document text
    • http://zejijinaw.iblogger.org/24076747137.pdfIn PDF document text
    • https://s3.amazonaws.com/sajezife/mini_dvi_to_hdmi_cable.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384817/normal_603203d001f03.pdfIn PDF document text
    • https://s3.amazonaws.com/zosevid/90700064999.pdfIn PDF document text
    • http://5coupon.info/wodogizufupdk0o.pdfIn PDF document text
    • http://bbcua.site/92078454707761t3.pdfIn PDF document text
    • https://s3.amazonaws.com/bulujono/zufopazarixa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://dinorafox.epizy.com/76127104430.pdfIn PDF document text
    • http://takoxiwewol.epizy.com/judefowididagewijog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9edb52b3-1f7d-4e57-b9ec-bf0dab7f789d/how_to_structure_a_dd_campaign.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1bb07490-671c-4e14-94da-3f2dad19558e/6-2_practice_tests_for_parallelograms_answers.pdfIn PDF document text
    • http://janalusexisowa.epizy.com/free_inventory_template_google_sheets.pdfIn PDF document text
    • http://rixadobi.rf.gd/10128186293.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC6E 5624 bytes
SHA-256: 6c6e5601e9d68fe3d4432613ea2712c9338d9181dae8b1500e6c58938865e501
font_01_sfnt_off0000ff78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF78 5552 bytes
SHA-256: 696cb00d4ab94bb4e4bb145504d15d3651ae9d7f956f587fd670baaa88c3a021
font_02_sfnt_off00010f6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F6F 12100 bytes
SHA-256: 289b2c3d37d567e913a954527a89cea3bc365e29396126cb72e2e11eb94906a4
font_03_sfnt_off00013730.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13730 16752 bytes
SHA-256: 702db90d42636ecfbb1414188bfcce8466f506840e16ce24213d65cd16988d67
font_04_sfnt_off00014e46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14E46 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34