Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bcdcb5ef41f7723…

MALICIOUS

PDF

46.1 KB Created: 2021-06-01 04:50:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 08066c9f57c693164275cb10e920e405 SHA-1: 7bdb69e107ffd29f848bcac9efd96a4d1f3d96e1 SHA-256: 5bcdcb5ef41f7723d6374bf655fc652e6b89c0713f6de140529ee6161a00e6c7
160 Risk Score

Malware Insights

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

The PDF document contains multiple links to known malicious redirectors, disguised as game hacks or free item generators. The primary malicious URL identified is https://netcdn.xyz/app/431946152/blue-hack-roblox-download-game-hack. The document body and heuristics indicate a lure for users to download potentially unwanted or malicious software. No scripts were extracted, but the presence of malicious links and redirectors strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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/431946152/blue-hack-roblox-download-game-hack In PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/minecraft-education-free_GM479516143.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/how-do-you-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/tiktok-free-fans_GM835599320.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/google-roblox-catalog-free_GM431946152.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/roblox-how-to-get-free-gui_GM431946152.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/roblox-minecraft-games-free_GM431946152.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/free-robux-v3rmillion-site-v3rmillionnet_GM431946152.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-mobile_GM479516143.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/assassin-roblox-download-hack_GM431946152.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/cheat-codes-for-roblox-xbox-one-dayz_GM431946152.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/minecraft-pe-free-ios_GM479516143.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
stream_004_off0000522a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x522A 26524 bytes
SHA-256: a06b8b4b2ac652292904605ce836f5e793dc45c562ce0097ccbd642f98748892
font_01_sfnt_off0000900a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x900A 18828 bytes
SHA-256: fb9edfa9ff59bb31b5f34b88082dc56ed62d264ab716b64238175771f6600c1a

Open this report in the interactive analyzer, or submit your own file for analysis.