Malicious PDF — malware analysis report

Static analysis result for SHA-256 e70b0688e2919791…

MALICIOUS

PDF

49.0 KB Created: 2021-05-14 10:34:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 446a3275f6a20dd962e4293a3d2f63e8 SHA-1: 57b044e727ecba824c5edaef1fee516e5e08b884 SHA-256: e70b0688e291979187816519cf6c0b547395f357219155f58af178002a5d0daf
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to malicious redirectors and potentially malicious PDF files, disguised as free Robux or game hack generators. The document body and embedded URLs strongly suggest a lure for users seeking in-game currency or cheats, leading them to exploit infrastructure. The presence of embedded URLs and the nature of the lures indicate a phishing or scamming attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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/free-robux-android-game-hack In PDF document text
    • http://butkimloai.com/images/how-to-win-robux_GM431946152.pdfIn PDF document text
    • http://butkimloai.com/images/minecraft-free-ios-no-verification_GM479516143.pdfIn PDF document text
    • http://butkimloai.com/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://butkimloai.com/images/free-spin-link-for-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/coin-master-hack-mod-apk-unlimited-spin-download_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/can-you-really-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/is-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://butkimloai.com/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://butkimloai.com/images/freerubux_GM431946152.pdfIn PDF document text
    • http://butkimloai.com/images/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://butkimloai.com/images/new-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://butkimloai.com/images/coin-master-free-spins-without-human-verification_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://butkimloai.com/images/easy-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/can-you-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://butkimloai.com/images/games-like-coin-master_GM406889139.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
stream_003_off000049c4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49C4 37912 bytes
SHA-256: f54599c504c0cadbac3cc48ac1bcb5a3feafb57ca6953a858b04366ea7fdc5ef
font_01_sfnt_off00009dac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DAC 18308 bytes
SHA-256: 3d682ae06d788585f0d48ef4471ddbfed33e391fd6a867cb0ce2fb595824b3ec

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