Malicious PDF — malware analysis report

Static analysis result for SHA-256 1adeec3f7d36f5c3…

MALICIOUS

PDF

34.4 KB Created: 2021-07-05 23:55:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0a4a307af80069673aa0396af9f6b788 SHA-1: b45c0f2fd67ae8e452d8c53592fe0e78fc453910 SHA-256: 1adeec3f7d36f5c350198ecf7dd95216fdf63bbae13754c587084f26413976f8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to a known malicious redirector. The document body and embedded URLs reinforce this lure, aiming to trick users into visiting the malicious URL. The ML classifier also strongly flagged this PDF as malicious.

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.tw/app/431946152/cmo-hackear-a-la-gente-en-roblox-jailbreak-game-hack In PDF document text
    • https://library.sman1berau.sch.id/repository/hack-to-protect-village-on-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-hack-spin-160-pro_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/wurst-client-112-2_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/facebook-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-minecraft-realms-to-join_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/pubg-uc-or-codashop_GM1330123889.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-promo-codes-2021-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-safe_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/hacks-for-roblox-the-labyrinth_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/fly-hack-for-roblox-download_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/www-free-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/snip-hack-roblox_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-online-minecraft-server_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-spin-link-coin-master-app_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
font_00_sfnt_off00002eee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EEE 22476 bytes
SHA-256: 1b394d2f13c327156c0d8556105e6423b7bfc4b97cad03f532a62a6b79177e0f
font_01_sfnt_off0000613a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x613A 19120 bytes
SHA-256: e8a1f4d02b34cd415f0e336e44952999a100cef9f4d90d92ae8554bbf9af29c1

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