Malicious PDF — malware analysis report

Static analysis result for SHA-256 daf5881e4b78f428…

MALICIOUS

PDF

34.8 KB Created: 2021-06-29 02:03:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 33f39a81d3c6c6576cfaae1337907e1f SHA-1: 1e5c855ab83b5008278be3262ffb0d2b1bc11c01 SHA-256: daf5881e4b78f428bae857a43e742662e7ac3175302c7df9a3ab32b14cdae33b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, with one prominent URL identified as a malicious redirector. The document body and heuristic firings indicate a lure related to game hacks and generators, suggesting an attempt to trick users into visiting these sites. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed for malicious redirection.

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/comment-hacker-un-compte-roblox-2021-fr-simple-game-hack In PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/download-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/how-do-i-get-free-robux-tix-and-obc-lifetime_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/try-minecraft-free_GM479516143.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/how-to-get-free-tiktok-coins_GM835599320.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/oprewards-com-login_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/free-robux-codes-promo-codes_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/reaper-quest-cheats-engine-roblox_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/what-do-you-do-if-your-roblox-account-gets-hacked_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/how-to-get-free-robux-by-robux-king_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/free-unlimited-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/arsenal-roblox-hacks-pasebin_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/coin-master-raid-hack_GM406889139.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/minecraft-that-you-can-play-for-free_GM479516143.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/roblox-20210-robux-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003068.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3068 21788 bytes
SHA-256: 8dbeb610d6405bc2bc3af94622683c3038d3e755a37adc50534d13cfbd30550b
font_01_sfnt_off00006066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6066 19884 bytes
SHA-256: 6094f0a0c3b75d0895f785d4261c3b045a62bd148d94b3f6b9cee6764a268a34

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