Malicious PDF — malware analysis report

Static analysis result for SHA-256 dae06f99e9b7fe21…

MALICIOUS

PDF

42.5 KB Created: 2021-05-13 08:09:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fd40031ef9a8a369e80fcdbf3a84ba10 SHA-1: cb05509dc9caf51eced22e0fe0af3e255d2c3b71 SHA-256: dae06f99e9b7fe212e7a4ecebb295ee51a21ea245d1cac0031b4532ccbf7b19a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that lead to known malicious redirectors, disguised as generators for in-game currency and hacks. The document body and heuristics indicate a lure for game-related cheats, specifically targeting users interested in Robux and Coin Master. The presence of multiple redirector links suggests an attempt to funnel users to potentially malicious websites for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/431946152/how-to-get-robux-game-hack In PDF document text
    • http://www.maakherumusic.net/images/link-coin-master_GM406889139.pdfIn PDF document text
    • http://www.maakherumusic.net/images/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.maakherumusic.net/images/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.maakherumusic.net/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.maakherumusic.net/images/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://www.maakherumusic.net/images/free-roblox-hair-boy_GM431946152.pdfIn PDF document text
    • http://www.maakherumusic.net/images/free-spins-and-coins-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://www.maakherumusic.net/images/robux-giver_GM431946152.pdfIn PDF document text
    • http://www.maakherumusic.net/images/how-to-get-infinite-robux_GM431946152.pdfIn PDF document text
    • http://www.maakherumusic.net/images/hacked-roblox-accounts-list_GM431946152.pdfIn PDF document text
    • http://www.maakherumusic.net/images/aternos-free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://www.maakherumusic.net/images/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • http://www.maakherumusic.net/images/blox-rewards_GM431946152.pdfIn PDF document text
    • http://www.maakherumusic.net/images/robux-survey_GM431946152.pdfIn PDF document text
    • http://www.maakherumusic.net/images/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.maakherumusic.net/images/coin-master-hack-unlimited-spins-and-coins-cheats_GM406889139.pdfIn PDF document text
    • http://www.maakherumusic.net/images/free-spins-coin-master-2021-no-verification_GM406889139.pdfIn PDF document text
    • http://www.maakherumusic.net/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.maakherumusic.net/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.maakherumusic.net/images/real-coin-master-hack-2021_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
stream_003_off00004869.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4869 25904 bytes
SHA-256: 4f5938935f5cbc09a406b383aacbf601ac0ee4f9c1af4a924872bba0868ec60f
font_01_sfnt_off0000842f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x842F 18120 bytes
SHA-256: 71e563e9f7d932bf2f31e6be0f9830cdc433fd691743cf56878add14cefe6216

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