Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9924a99162a9dee…

MALICIOUS

PDF

34.9 KB Created: 2021-06-18 11:30:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6875ac2aab3102b90f0963997ea07b23 SHA-1: 77863c7efff58b08fefff4539271743aed7832dd SHA-256: d9924a99162a9deeae624f373f346f787d65b1316c321f486d82340c7406af81
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as 'game hacks' and 'free generators'. The primary lure is 'How To Hack On Roblox Adopt Me', directing users to a URL that is flagged as malicious. This suggests the document is part of a phishing or malware distribution campaign, likely initiated via spearphishing attachment.

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-hack-on-roblox-adopt-me-game-hack In PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/robloxclick-hack_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/how-to-hack-roblox-jailbreak-money-with-cheat-engine_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/can-people-hack-you-through-roblox_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/paste-bin-robux-hack_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/discord-roblox-fr-hack_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/robux-hack-pastebin-explication_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/tiktok-viewer-free_GM835599320.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/tradelands-roblox-cheats_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/roblox-hack-phantom-forces-cheat-engine_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/assassin-roblox-hack-script_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/roblox-hack-new-dtfb-test_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/comment-cheat-sur-roblox-dbz-final-stand_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/free-robux-codes-2021-pastebin_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/roblox-hack-tool-android_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/free-robux-hack-me_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/how-to-get-free-robux-no-verify_GM431946152.pdfIn PDF document text
    • https://acode.com.br/wp-content/uploads/fsqm-files/free-minecraft-skin-maker_GM479516143.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_off00003041.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3041 22564 bytes
SHA-256: 716856a2c6827d33c28edefcfdf8798f06de15516c70fdd10b0d48bce98c0afd
font_01_sfnt_off0000628c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x628C 19284 bytes
SHA-256: 291263c271e4d7de6fc720ec3cc2d60b2488ddcb45301ffb22f470b461734c88