Malicious PDF — malware analysis report

Static analysis result for SHA-256 697e1e41431e1408…

MALICIOUS

PDF

49.7 KB Created: 2021-06-11 06:36:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 723b941a12ec66bb03631e6c7daf205d SHA-1: e7c855dbf5cf454a95d8997c32801c2116bf6ebc SHA-256: 697e1e41431e14086e7f59297a17f584f4705929c394a4390cada6338f4b5e38
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as "game hacks" and "free generators." The document body and embedded links suggest a lure to trick users into downloading potentially malicious content. While no scripts were explicitly extracted, the presence of malicious links and the ML classifier's high confidence indicate a high likelihood of a malicious payload being delivered.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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/roblox-apocalypse-rising-dll-hack-download-game-hack In PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-robux-for-xbox-1_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/roblox-online-free_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/mcpe-com_GM479516143.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-get-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/ultimate-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-hack-roblox-on-youtube-on-your-phone_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/get-robux-com_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/minecraft-free-reddit_GM479516143.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/facebook-coin-master_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-facebook-free-spins_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-hack-download_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-admin-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-tiktok-followers-app_GM835599320.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-roblox-accountsd_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/minecraft-for-free-apk_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000510a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x510A 27696 bytes
SHA-256: 3fc946de18c481e60708b21f89e02b5aea86c11e3c807e2a493ca974b056733c
font_01_sfnt_off00008f4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F4A 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off00009bf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BF2 19452 bytes
SHA-256: a57398350538da19b339af051aaa5627fa658317c1f94b8cab07d508a9043555