Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1aa54a7a93234f6…

MALICIOUS

PDF

43.3 KB Created: 2021-05-12 14:01:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 106f6ed5c59c479c272cb277fef57356 SHA-1: 6ae429566d2b02f5f781899c61f7cb5140951f76 SHA-256: d1aa54a7a93234f6eb828688a75b6445658fea963c9396a7a9f027214784607b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, masquerading as game hacks or cheats. The ML classifier also flagged this PDF as malicious. The primary attack vector appears to be luring users into clicking these links, likely leading to further malware downloads or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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.xyz/app/479516143/toolbox-for-minecraft-pe-mod-apk-game-hack In PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-heroes-online_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-exe_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-roblox-card-codes_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-roblox-exploits_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/robuxglobalcom_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/minecraft-beta-free_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/get-robux-com_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-apk-hacked-3526_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004bdd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BDD 25472 bytes
SHA-256: b69b7ded962e71c7f4d77d56cddde4fdf00c57fb98e98dfce5e68c2dfba65e21
font_01_sfnt_off0000856d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x856D 18824 bytes
SHA-256: 08dd0e627f059c87109638762070e0a2e0985dffdf37f033cccb8f704f0a7595

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