Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1e54a81199a6e42…

MALICIOUS

PDF

33.1 KB Created: 2021-07-01 16:01:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d7ad5e37e326eef796713fd5bb02d0d6 SHA-1: aac2ece87250cd4282bb4164af44a786355a7784 SHA-256: b1e54a81199a6e420f955cb524ae0c6790b43caa0db1791de68e4b5f7dd9b003
200 Risk Score

Malware Insights

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

This PDF document contains multiple links designed to lure users into clicking on what appears to be a game hack or generator, impersonating the Amazon brand. The primary link, http://netcdn.co/app/431946152/eclipse-roblox-hack-game-hack, redirects to known malicious infrastructure. The document's content and heuristics suggest it's part of a credential phishing or scam campaign, likely leveraging a PDF exploit to deliver a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: http://netcdn.co/app/431946152/eclipse-roblox-hack-game-hack.
  • 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.co/app/431946152/eclipse-roblox-hack-game-hack In PDF document text
    • http://library.yamasi.ac.id/repository/free-roblox-outfits-2021_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-weird_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-links-to-get-free-spins_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-spins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/robux-games_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/chisel-and-bits-mod-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-to-have-free-wings-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/synapse-x-download-free-roblox_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/building-hacks-for-roblox-bloxburg_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/ez-hacker-roblox_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-to-hack-in-jailbreak-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/roblox-fun-com-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/roblox-games-with-free-vip-servers_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-isle-hacking_GM431946152.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_001_off00002a96.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A96 22504 bytes
SHA-256: 331d4b4babdb61efce4c29e488f06f7cdcba076215c0650550f89dba8f60b542
font_01_sfnt_off00005cd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CD5 18952 bytes
SHA-256: 76ef4e2dc9667aeded4acec15f4854ddaa1534c5d4a4643e93a1279dc309e2fc

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