Malicious PDF — malware analysis report

Static analysis result for SHA-256 a365305abd496e97…

MALICIOUS

PDF

34.2 KB Created: 2021-07-04 18:11:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f494058e8e23edb99389a42b4e714cab SHA-1: 49341cea69527b3a7cbd2355b284183ce3fac070 SHA-256: a365305abd496e97a9318306b84fb74708a35509d55d20faf425f505c72ae834
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free game currency and hacks, directing users to a known malicious redirector URL. The ML classifier also flagged this PDF as malicious. The embedded URLs and document content strongly suggest a phishing or scam attempt to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.tw/app/406889139/free-spins-coin-master-android-game-hack In PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/mcpe-client_GM479516143.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/download-coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/roblox-shirt-maker-free_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/coin-game_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/coin-master-generator-free_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/roblox-free-brown-hair_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/minecraft-launcher-free_GM479516143.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/free-spin-appscoin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/how-to-make-a-private-server-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/coin-master-hack-no-verification-2021_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-download_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_002_off000030be.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30BE 22384 bytes
SHA-256: 9d5f1b85d93e2bf6a05a6b5c7ed43b644af1739f2d1fcb20f9ae3e27f06d30ab
font_01_sfnt_off000062c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C1 18348 bytes
SHA-256: 5f09792028422a0f3da80369e6b79e1943eb381c954ddc120ae65d5118bfcfa1

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