Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce1aaaee154ed3e8…

MALICIOUS

PDF

48.9 KB Created: 2021-06-11 07:03:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3ce9ecb0bfa2948eb35c759ccadcfbba SHA-1: 1ee0a3bf21cec40fda568001c5747ee798540a53 SHA-256: ce1aaaee154ed3e89b303c7204a0e9ecc42cbf24b3907a1f37dbc889293efb68
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The document body and heuristics indicate a lure to download or access content from the provided URL. No scripts were extracted, but the embedded URLs and the nature of the lure strongly suggest a phishing or malware distribution attempt.

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/431946152/2gunda-parte-del-hack-de-robux-game-hack In PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-hack-coin-master-game-without-root_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-hack-coin-master-with-game-guardian_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/robux-no-verification_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-coin-master-spins-2021-link_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/aimbot-exe-roblox_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/minecraft-bedrock-free-download_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/wizard-hacks_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-download-wurst_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/getrobux-come_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-free-spins-apk-2021_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/i-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-free-gui-op_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/unlimited-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/cm-spin-link_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-free-blue-hair_GM431946152.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_off0000538a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x538A 25892 bytes
SHA-256: 66e05521f49d5638d2e0c4a3797cc7d9a8919e08f5e79dafb261f7256dd022cf
font_01_sfnt_off00008f95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F95 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off00009943.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9943 19332 bytes
SHA-256: 9e445b9afd7cc629d214d777d4d93b819ad97e5551ee6492a7260b6022a844fb

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