Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1a45a8013e3b3fb…

MALICIOUS

PDF

33.3 KB Created: 2021-06-26 19:12:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 529809804e7934c3edadf5273e9031dd SHA-1: e5852c1b051251f548d37d4dd57dd5203a159d27 SHA-256: a1a45a8013e3b3fba5e7afdb6fb07e725f768b1f67dd4cd11419de9807cec1b1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and further malicious PDFs, masquerading as game hacks and generators. The document body explicitly mentions 'free generator / game hack' and 'CLICK HERE TO ACCESS ROBUX GENERATOR', aiming to trick users into clicking the malicious links. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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-make-your-own-shirt-on-roblox-for-free-game-hack In PDF document text
    • http://baroque1990.com/images/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/free-tiktok-followers-no-survey_GM835599320.pdfIn PDF document text
    • http://baroque1990.com/images/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://baroque1990.com/images/free-roblox-clothes-no-decals_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/minecraft-dungeons-free-download-pc_GM479516143.pdfIn PDF document text
    • http://baroque1990.com/images/hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/coin-master-unlimited-spin-link_GM406889139.pdfIn PDF document text
    • http://baroque1990.com/images/new-speed-hack-roblox-2021-feb_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/noob-vs-pro-vs-hacker-vs-god-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/roblox-jailbraik-hack_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/hacking-brothers-roblox-account_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://baroque1990.com/images/fb-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://baroque1990.com/images/free-roblox-exploi_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://baroque1990.com/images/how-to-get-free-shirts-roblox_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/roblox-free-jailbreak-vip-server_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/roblox-hacked-client-comlu_GM431946152.pdfIn PDF document text
    • http://baroque1990.com/images/coin-free-spin_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_off00002a7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7A 22148 bytes
SHA-256: e3c4ff2beb27ff2af7cc27cf5bfd61eedb8d0dbd7b4a59b73b55c4b9f4569360
font_01_sfnt_off00005b64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B64 19872 bytes
SHA-256: 1b39f63ccb959649a00c713a1d5bfc67a01e00337be75138ab345639010f45e4

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