Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbce437e4bf70fa3…

MALICIOUS

PDF

48.0 KB Created: 2021-06-03 23:48:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5a63aa7306765a84c504d880035822f3 SHA-1: 0a76366bbda51a83eb4e32df8cc19e11a0bf1050 SHA-256: dbce437e4bf70fa32d625b9aa16d9ca908eb80320d9687a99f91602c9ee2317d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites offering game hacks and generators, identified as malicious redirectors. The document body, though partially corrupted, contains references to 'Roblox Adopt Me Hacks 2021' and a URL matching the malicious redirector. This suggests a social engineering lure to drive users to potentially malicious content.

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.online/app/431946152/roblox-adopt-me-hacks-2021-game-hack In PDF document text
    • http://libsmpn1balongpo.sch.id//repository/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/teach-me-to-hack_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/coin-master-hack-2021-no-survey_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/roblox-money-hack_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/coin-master-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/free-robux-just-click_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/8bp-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/wurst-hacks_GM479516143.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/coin-master-free-spins-ios-app_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/roblox-cp_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/free-coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/coin-master-free-spins-no-verification_GM406889139.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_off00004edb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EDB 25432 bytes
SHA-256: 96c5c745671ac2bf964f129e4b3a89de05b0e84981fbb0e77197a52f568a00f8
font_01_sfnt_off0000890f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x890F 3656 bytes
SHA-256: 9f0b708049ba3a27fe71af9d3da5d823b566ea88c56b157492a6ea759b34d87c
font_02_sfnt_off000095cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95CC 19232 bytes
SHA-256: 0b867ffe8539eae71078bc89a561397ca2d87a89b617cad907cf467b0a006e5c

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