Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a06bb0c256d3768…

MALICIOUS

PDF

45.8 KB Created: 2021-06-09 10:11:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 44cd8fc8f8c02cf8829cf29cc43b6b12 SHA-1: ec711256e36ef6d1d7406d0465b1c3f8c0ea58f8 SHA-256: 9a06bb0c256d37686c2c0b44c2bd12b73ecf9ee49ea8cb2dd62b5d52fd30f581
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and game hack lures, indicating an attempt to trick users into visiting potentially harmful sites. The document body and embedded URLs strongly suggest a phishing or scam attempt disguised as a game-related utility. No scripts were extracted, but the presence of malicious links is sufficient evidence for the observed attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/how-to-hack-on-tower-of-hell-roblox-game-hack In PDF document text
    • http://library.forda-mof.org/katalog/repository/pubg-uc-india_GM1330123889.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-free-download_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-free-spin-and-coins-links-home_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/como-hackear-el-juego-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-rules_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-pokecoins-pokemon-go-free_GM1094591345.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-become-a-hacker-in-roblox-easy_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/hacking-giving-my-fans-robux-inquisitor_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/wwwrobloxcom-free-roblox_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/minecraft-nintendo-switch-digital-code-free_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-roebucks_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-apk-mod-free-download_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/hack-mod-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-coins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/can-you-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/minecraft-logo-maker-free_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000533e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x533E 26500 bytes
SHA-256: 5c8644ae39eb01de9286eaf76bdf92b77da0578502879381b7d1e52351aa5bf1
font_01_sfnt_off00008ff4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FF4 18344 bytes
SHA-256: 39d87c9178219716c14611ba198d922adf21ae3601a99e2acef9728dfcef1e60

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