Malicious PDF — malware analysis report

Static analysis result for SHA-256 be10be1c7df06fd4…

MALICIOUS

PDF

45.4 KB Created: 2021-06-09 13:16:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8f915020844e2827dc491eb1c144be74 SHA-1: 7d79d6c8f7df0e495013eaed5019666d220c103d SHA-256: be10be1c7df06fd49297aca5f9ee86b1436c4a625355a51919b6966446c75d9b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically targeting 'game hack' and 'free robux' lures. The ML classifier also flagged this PDF with high confidence. The presence of these links indicates an attempt to redirect the user to potentially malicious websites, likely for distributing further malware or engaging in scams.

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/hack-confiteration-data-base-roblox-game-hack In PDF document text
    • https://www.manmed.info:443/images/_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/uprobuxcom-free-robux_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/roblox-give-robux-free_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/minecraft-wurst_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-robux-co_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/all-free-items-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/roblox-password-hacker_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/coin-master-game-hack-app_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/woman-roblox_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/mine-minecraft-games-for-free_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/how-to-get-free-robux-december-2021_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/hack-minecraft_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/coin-master-free-shield_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_off00004f73.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F73 26716 bytes
SHA-256: 7b774f7425ebc65fb7546a2e1f9bd1b15b738b0cb1d283d200c23839ae994527
font_01_sfnt_off00008dc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DC4 18572 bytes
SHA-256: 80cdf8348669735d3e62382c5d0d0d81911d12c791450ea52d089f61f4912118