Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d955184470d2de1…

MALICIOUS

PDF

43.7 KB Created: 2021-05-12 23:04:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 94fb2aabda75a4e4bcb64ea423af4323 SHA-1: 0bb2fdbd8a5c4f7805ae45f3bf6db21d6aa715f4 SHA-256: 1d955184470d2de16577064dd782e2c10b12b7b147dc3fe2445dc72b075f0e62
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs that lead to pages promising free in-game currency and hacks, suggesting a phishing or scam attempt. The ML classifier also flagged this PDF as malicious. While no scripts were directly extracted, the presence of numerous links and the ML detection strongly indicate a malicious intent to redirect users to potentially harmful sites.

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/406889139/coin-master-free-spin-link-today-2021-game-hack In PDF document text
    • http://elib.acls-indonesia.com/repository/best-site-for-free-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/hack-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/client-minecraft_GM479516143.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/mcpe-hacks_GM479516143.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/robux-earner_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/master-coin-free-link_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/minecraft-hacked-apk_GM479516143.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/coin-master-hack-spin_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-robux-download_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/mcpe-free-download_GM479516143.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/coin-master-spins_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/coin-master-free-coins-and-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
font_00_sfnt_off00004a74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A74 26296 bytes
SHA-256: 692f38225281c0e96619de5c69ab08fe7878a50ce4e2b3ad1cd287015f6b81e8
font_01_sfnt_off000086e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86E7 18812 bytes
SHA-256: 209d45ed87732d827821998a5283e56b95c39a3af4032faff2e6da7d3e76f78f

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