Malicious PDF — malware analysis report

Static analysis result for SHA-256 af85e13ea9ca9f98…

MALICIOUS

PDF

34.1 KB Created: 2021-06-18 06:32:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b711850f3c11d8e93e7b6d0a4abf0332 SHA-1: a7dd7abc1fb8ed2f927eb7fe051035ec020a8eee SHA-256: af85e13ea9ca9f9896a3af60c3527db1ca05e8803f3813339fbd96e350c635a0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a malicious redirector, masquerading as a generator for free game currency or hacks. The ML classifier strongly flagged this PDF as malicious. The document body and embedded URLs suggest a lure for users seeking in-game advantages, which is a common social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/how-to-get-cartoony-animation-for-free-roblox-game-hack In PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/free-robux-creator_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/games-that-give-out-free-robux_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/roblox-cheat-level-200-arcane-adventures_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/how-did-roblox-get-hacked_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/robux-hack-no-survey-mobile_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/free-online-minecraft-server_GM479516143.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/como-ganar-robux-sin-hacks_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/free-robux-right-now_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/roblox-adopt-me-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/duengon-quest-tips-and-cheats-roblox_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/roblox-games-free-admin_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/dansploit-hack-roblox-download_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/hack-for-roblox-in-game_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/free-robux-come_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/did-tofuu-het-roblox-hacked_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/roblox-hack-apk-mod_GM431946152.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/free-tiktok-fans-no-verification_GM835599320.pdfIn PDF document text
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/roblox-tuto-hack_GM431946152.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_off00002edd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EDD 21984 bytes
SHA-256: 0d77b89ff25280d559f0f3a5fcd478cfc8349cb691ac8c8acb8792b80edef589
font_01_sfnt_off00005fbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FBD 19292 bytes
SHA-256: bfa4d8e1835e8dde265f67f1416c4b9db627a3bbbe5b67ac6c0d552905aac72b

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