Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d390ef8f6e412b5…

MALICIOUS

PDF

43.9 KB Created: 2021-06-14 01:23:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4062abd4f52fdf5eba2ae6ac45491cfe SHA-1: 2bc48f6895eae21e1a033316efc605038e662d33 SHA-256: 7d390ef8f6e412b51f3627e635819abb4a3518d136c45dba1d7594f4613c6263
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links, including one that redirects to known malicious infrastructure. The document body and embedded links suggest a lure for free game items or hacks, a common social engineering tactic. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent, likely to redirect users to a site that may host further malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/free-csgo-skins-roblox-id-audio-game-hack In PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/apps-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/siren-hack-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/minecraft-free-online-unblocked_GM479516143.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/roblox-bux-free_GM431946152.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/coin-master-hack-tool-ios_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/gnthacks-com-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/coin-master-hack-software_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/minecraft-java-free_GM479516143.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/how-do-you-get-free-roebucks_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_off00004b41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B41 26680 bytes
SHA-256: a77483a76b08e52402a0d1e299218ba6ff3137e84916c6427ccdaeca5c21fc54
font_01_sfnt_off000087bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87BD 18840 bytes
SHA-256: 5fa1296d58ee5fca1f356f87dad1711a97b0b3b4a21f5ffa19163a0a12429d74

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