Malicious PDF — malware analysis report

Static analysis result for SHA-256 82a5f85a7241b46c…

MALICIOUS

PDF

45.3 KB Created: 2021-06-11 02:01:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 92a4e229f5f092738b086060900b1bad SHA-1: c9184158dddf0888d57f522d33a2bb1e14d85a6e SHA-256: 82a5f85a7241b46cf1729bbae97f15739120dc6a0c623909c8ec56453ccb2445
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and game hack lures, aiming to trick users into visiting potentially harmful websites. The document body and extracted URLs suggest a phishing attempt focused on in-game currency or cheats. No scripts were extracted, but the presence of malicious links and the ML classifier's high confidence indicate a high likelihood of a malicious campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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://netcdn.tw/app/431946152/roblox-money-cheat-no-survey-game-hack In PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-plaza-how-to-cheat-a-big-win_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/corn-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/pastebin-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-sued_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-find-free-items-in-roblox-catalog_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/robuxglobalcom-no-verification_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-games-online-free-no-download_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-link-daily-get-free-spins-amp_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/obby-gives-you-free-200k-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-hack-tool-for-pc_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005002.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5002 26764 bytes
SHA-256: 7e67a1ae82419cc897620fb81fed105fd66ca25066a0a60f9f782339f82258c5
font_01_sfnt_off00008c85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C85 18912 bytes
SHA-256: dd3dd157b7e9fd0663349a67dd33021551e63e48afec0b016ff8dac47691d9b9

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