Malicious PDF — malware analysis report

Static analysis result for SHA-256 edf0f30f33bad981…

MALICIOUS

PDF

42.2 KB Created: 2021-05-19 15:40:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a33463d5fa0bd8f07804d2eb3e1518b8 SHA-1: 6bfc6a42089d8aec5969406452dac839a4c3afb8 SHA-256: edf0f30f33bad981c433ea2101545691a093e3948629704371bb6a1f2de3e608
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and websites offering game hacks and free currency, such as 'working-coin-master-hack-game-hack'. The document body and embedded links strongly suggest a social engineering lure designed to trick users into visiting these sites, likely as a precursor to further malicious activity or direct malware download. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/working-coin-master-hack-game-hack In PDF document text
    • https://allpi.int/images/how-to-combine-videos-on-tiktok-free_GM835599320.pdfIn PDF document text
    • https://allpi.int/images/free-minecraft-capes-no-mods_GM479516143.pdfIn PDF document text
    • https://allpi.int/images/coin-master-hack-ios-download-2021_GM406889139.pdfIn PDF document text
    • https://allpi.int/images/rbx-free-robux_GM431946152.pdfIn PDF document text
    • https://allpi.int/images/free-roblox-acc_GM431946152.pdfIn PDF document text
    • https://allpi.int/images/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • https://allpi.int/images/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • https://allpi.int/images/coin-master-hack-apk-ios-download_GM406889139.pdfIn PDF document text
    • https://allpi.int/images/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • https://allpi.int/images/coin-master-free-spons-apk-2021_GM406889139.pdfIn PDF document text
    • https://allpi.int/images/coin-master-hack-blogspot_GM406889139.pdfIn PDF document text
    • https://allpi.int/images/free-roblox-dominus_GM431946152.pdfIn PDF document text
    • https://allpi.int/images/free-roblox-app_GM431946152.pdfIn PDF document text
    • https://allpi.int/images/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://allpi.int/images/coin-master-online-hack-tool_GM406889139.pdfIn PDF document text
    • https://allpi.int/images/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://allpi.int/images/free-roblox-printables_GM431946152.pdfIn PDF document text
    • https://allpi.int/images/coin-master-hack-2021-download_GM406889139.pdfIn PDF document text
    • https://allpi.int/images/coinmaster-spin-ml_GM406889139.pdfIn PDF document text
    • https://allpi.int/images/robux-com-roblox_GM431946152.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_003_off000047c8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47C8 26400 bytes
SHA-256: 669c7d94a53b988c3d75e634993edc98f592066e527d687dd5a5739afbaed46a
font_01_sfnt_off00008297.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8297 18204 bytes
SHA-256: c2a793af59649bf4b843cbd99ee8be529ccee1be30d6b51226c82ac03537da05

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