Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d085ab35a71c2dc…

MALICIOUS

PDF

34.4 KB Created: 2021-07-01 17:16:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 93b57bfcb5b8ecf8cc51d67e982abf01 SHA-1: 9b4c0f89aad59f8ed953b6460673bea407a8ef02 SHA-256: 8d085ab35a71c2dc8ea155632800daec725f3ebff56ab5cd91c36c7346a6f1b9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as "free generator / game hack" lures for popular online games. The document body and embedded URLs strongly suggest a phishing or scam campaign aimed at users seeking in-game advantages. No scripts were extracted, but the presence of malicious redirectors indicates a high likelihood of further malicious content delivery.

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.co/app/431946152/how-to-create-clothes-on-roblox-free-game-hack In PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/how-to-get-free-hair-roblox_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/plz-give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/roblox-yammy-xox-hacking_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/arsenal-hacks-roblox-2021_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/is-java-minecraft-free_GM479516143.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/free-robux-online-no-verification_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/does-free-robux-work_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/free-roblox-faces-2021_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/best-sites-for-free-robux_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/cheat-engine-tutorial-roblox_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/roblox-hack-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/free-pastebin-robux_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/hide-and-seek-extreme-roblox-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/free-roblox-items-2021_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/doge-ahat-free-roblox_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/cheats-for-money-for-roblox_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/free-roblox-wp-themes_GM431946152.pdfIn PDF document text
    • http://cbt.man1metro.sch.id/__statics/gudangsoal/files/how-to-hack-animation-pack-in-roblox_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_off00002fe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FE4 22176 bytes
SHA-256: 096621ce170056b7bce902e921debab8ea01a30cf65d0d2b22f8a21223039ecd
font_01_sfnt_off00006125.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6125 19084 bytes
SHA-256: a51a0382f94900913242cffa81b3c669b7b897a4b41b8bc6b4bc98251904366c

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