Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3ffd58dbeb5da45…

MALICIOUS

PDF

33.2 KB Created: 2021-07-03 13:40:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1e9d998d63704dad656d297450542c74 SHA-1: 9e4b476c99fc1f9449b1827b3b2ea0bd678f9182 SHA-256: f3ffd58dbeb5da454e074086e4696cfed59cbcc30b04513b3a9b389ee19706b1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and generators. The primary lure URL is http://netcdn.tw/app/479516143/toolbox-for-mcpe-game-hack, which is flagged as a known malicious redirector. The document body and embedded links suggest a social engineering tactic to trick users into visiting potentially harmful sites.

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.tw/app/479516143/toolbox-for-mcpe-game-hack In PDF document text
    • http://www.hlad.hr/files/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • http://www.hlad.hr/files/roblox-hack-no-survey-no-password-no-download_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/robux-free-co_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/como-meter-hacks-en-roblox_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.hlad.hr/files/how-to-get-robux-for-free-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
    • http://www.hlad.hr/files/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/how-to-get-free-robux-without-a-human-verification_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/how-to-get-free-coins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://www.hlad.hr/files/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/how-to-get-money-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.hlad.hr/files/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • http://www.hlad.hr/files/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.hlad.hr/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/rewardrobux-com_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/roblox-games-to-play-for-free_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/roblox-money-hack-rocitizens_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/hack-coin-master-apk-31_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_off00002d34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D34 22372 bytes
SHA-256: f6945fac9b5ca56207d7e9db21f2a6db76563ede9ed4ec5ffb6ecc7a4ce35f05
font_01_sfnt_off00005eb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB1 18392 bytes
SHA-256: 6731796fcc3540c9bce8cf4082208439aef10811acb01390060e5f462b6e1492

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