Malicious PDF — malware analysis report

Static analysis result for SHA-256 b04100e95dacf117…

MALICIOUS

PDF

43.3 KB Created: 2021-05-10 16:34:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 12bf2cad88624d0c3917ffb533bbbc3f SHA-1: 1f36e937885bbfec9dc4b3dd5879455bca9ee10a SHA-256: b04100e95dacf117e0df49940e0286696265f061c1a33587648466d608bb19d9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that lead to websites advertising 'free generators' and 'game hacks', identified by heuristics as malicious redirectors. The document body, though partially corrupted, also contains similar URLs. These links are likely intended to trick users into visiting malicious sites, potentially for phishing or to download further malware. No scripts were extracted, but the presence of malicious links and the lure of free game items strongly suggest a social engineering attack.

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 https://netcdn.xyz/app/406889139/how-to-get-free-spins-on-coin-master-facebook-game-hack In PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/how-many-levels-are-there-in-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/cheating-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/easy-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/free-robux-site_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/coin-master-hack-generator-tool_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/minecraft-windows-10-edition-hacks_GM479516143.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/coin-master-hack-apk-android_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/coin-master-free-spins-link-blogspot-april-2021_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/hack-coin-master-spin_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/roblox-free-hair-girl_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/omplete-surveys-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/www-robux-us_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/how-to-get-800-robux-for-free_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/free-robux-generator-codes_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/game-hunters-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/how-to-hack-coin-master-game-2021_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_off00004ce7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CE7 25632 bytes
SHA-256: d5f25ab488cffca135342cb64d5e2d3289c220ad20f267a4e9f283a9786f7eba
font_01_sfnt_off000086a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86A7 18380 bytes
SHA-256: 71bee5fb83ca58b21c1d24b393ac6a95aa3d07cb2aa8ee860216aa324e2c09d6

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