Malicious PDF — malware analysis report

Static analysis result for SHA-256 bad1227f17f3900c…

MALICIOUS

PDF

46.2 KB Created: 2021-06-07 06:41:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a2d85ac0bcc7ae57a43115b3466aa56c SHA-1: 69fed2465288f475793eaeb83c3968171986bdf7 SHA-256: bad1227f17f3900c9bb91e7a408bae0add839f27ad7f73ab5f57708c9c869842
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that are flagged as malicious redirectors, specifically leading to content related to game hacks and generators. The document body and heuristics indicate a lure to click these links, which likely serve as a gateway to further malicious activity such as phishing or malware downloads. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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-do-you-make-a-roblox-cheat-game-hack In PDF document text
    • https://pemadamapi.net/images/free-robux-no-email_GM431946152.pdfIn PDF document text
    • https://pemadamapi.net/images/woman-roblox_GM431946152.pdfIn PDF document text
    • https://pemadamapi.net/images/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://pemadamapi.net/images/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://pemadamapi.net/images/coins-master-hacks_GM406889139.pdfIn PDF document text
    • https://pemadamapi.net/images/free-draw-roblox_GM431946152.pdfIn PDF document text
    • https://pemadamapi.net/images/minecraft-free-apk-java-edition_GM479516143.pdfIn PDF document text
    • https://pemadamapi.net/images/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://pemadamapi.net/images/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://pemadamapi.net/images/free-rare-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • https://pemadamapi.net/images/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
    • https://pemadamapi.net/images/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://pemadamapi.net/images/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://pemadamapi.net/images/who-tiktok-free-followers_GM835599320.pdfIn PDF document text
    • https://pemadamapi.net/images/how-to-hack-coin-master-in-pc_GM406889139.pdfIn PDF document text
    • https://pemadamapi.net/images/how-to-get-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • https://pemadamapi.net/images/coin-master-free_GM406889139.pdfIn PDF document text
    • https://pemadamapi.net/images/coin-master-hack-tool-download_GM406889139.pdfIn PDF document text
    • https://pemadamapi.net/images/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://pemadamapi.net/images/the-coin-master-hack_GM406889139.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
stream_004_off00005080.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5080 27564 bytes
SHA-256: c7ee787f4b8628cf0b722cd378a0e3f96ed800f2df3949a3aa10d789da9912e5
font_01_sfnt_off00008f31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F31 19280 bytes
SHA-256: 2458a2e26720a2fabd58c8c8b08da6a3b8a24ea51a36d5171cb78fa48ce71689