Malicious PDF — malware analysis report

Static analysis result for SHA-256 71e1a9a3c9a6b6cc…

MALICIOUS

PDF

44.1 KB Created: 2021-05-17 15:47:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 57bca7d2e769327a646fe17710438242 SHA-1: a07c2d9b2aef6f87bc8e9db5f74705d3e4fdd00a SHA-256: 71e1a9a3c9a6b6cce9859aa7f119d27be293b3b927a487d833afe5a713064a75
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The document body text and embedded URLs strongly suggest a phishing attempt to trick users into visiting malicious sites. No scripts were extracted, but the PDF's structure and embedded links are indicative of a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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-free-robux-promo-codes-game-hack In PDF document text
    • https://de-licht.com/image/data/files/mcpe-download_GM479516143.pdfIn PDF document text
    • https://de-licht.com/image/data/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://de-licht.com/image/data/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/free-online-minecraft-server_GM479516143.pdfIn PDF document text
    • https://de-licht.com/image/data/files/minecraft-apk-android-free_GM479516143.pdfIn PDF document text
    • https://de-licht.com/image/data/files/minecraft-linux-free_GM479516143.pdfIn PDF document text
    • https://de-licht.com/image/data/files/easy-roblox-today_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://de-licht.com/image/data/files/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • https://de-licht.com/image/data/files/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/how-do-i-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://de-licht.com/image/data/files/free-minecraft-account-reddit_GM479516143.pdfIn PDF document text
    • https://de-licht.com/image/data/files/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/roblox-army-robux_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/get-free-robux_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/free-robux-com-real_GM431946152.pdfIn PDF document text
    • https://de-licht.com/image/data/files/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • https://de-licht.com/image/data/files/minecraft-for-free-apk_GM479516143.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_off00004989.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4989 27724 bytes
SHA-256: a18f91947f2cbac9c51e4a426db1d78c4514ef8fa90f8593f24299f360d6677d
font_01_sfnt_off00008894.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8894 18872 bytes
SHA-256: 5ac59f2bbd716fa5a12c7062aef47b6358464a1e75e3d61e5fb3ce0da7ae841b

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