Malicious PDF — malware analysis report

Static analysis result for SHA-256 b01571849f82013e…

MALICIOUS

PDF

35.5 KB Created: 2021-07-04 03:22:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a10e26bf1529aaa1c8817e867f3de695 SHA-1: 69fea953173a098af8f092a822021c770817ff60 SHA-256: b01571849f82013e613e6056a9db3903940a1350d4a97aa06467a177295cc2cd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating it is a malicious redirector lure, specifically targeting users with promises of free game hacks and Robux. The document body and embedded URLs point to a known malicious redirector infrastructure. The primary goal appears to be directing 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/431946152/free-robux-real-game-hack In PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/free-spins-coin-master-november-2021_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/coin-master-hack-ios-jailbreak_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/free-minecraft-mods-for-ps4_GM479516143.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/roblox-top-model-hack_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/roblox-catalog-free-dominus_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/pokemon-go-free-online_GM1094591345.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/coin-master-free-gold-cards_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/roblox-sonar-studios-dragon-adventures-cheats_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/coin-master-ios-gods-hack_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/coin-master-hack-android_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/roblox-free-obc-accounts-2021_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/toolbox-for-minecraft-ios_GM479516143.pdfIn PDF document text
    • https://elearning.man1kotamadiun.sch.id/__statics/gudangsoal/files/free-robux-generator-no-survey_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
stream_002_off00003318.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3318 22828 bytes
SHA-256: d43a2c78a355ba075b9243eca10401564d2f4bdf5d69f1f337a2a913ccda1373
font_01_sfnt_off00006666.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6666 18788 bytes
SHA-256: 4bc1fb5241f7d1727492069c2276e888dd2add0fc79522b75a602c51baadbe08

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