Malicious PDF — malware analysis report

Static analysis result for SHA-256 0720a8b60b3a1cca…

MALICIOUS

PDF

42.2 KB Created: 2021-05-13 14:54:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 43f3567095a03fa03a32b368a00c9f95 SHA-1: a308efa586b044518e5a5a4913ebd0a7be44effc SHA-256: 0720a8b60b3a1cca3b26a67dbcbad7bf1dda294a76ebb63b3746b552c0ed7e5d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirector domains, specifically promoting 'Coin Master' hacks and 'free Robux'. The primary lure URL, https://netcdn.xyz/app/406889139/coin-master-hacked-apk-download-for-android-game-hack, is associated with malicious redirector infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering attack aimed at tricking users into downloading malware or visiting malicious sites.

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/coin-master-hacked-apk-download-for-android-game-hack In PDF document text
    • http://eooe.gr/images/free-robux-no-verification-required_GM431946152.pdfIn PDF document text
    • http://eooe.gr/images/legit-coin-master-hack-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
    • http://eooe.gr/images/hacks-master-coin_GM406889139.pdfIn PDF document text
    • http://eooe.gr/images/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • http://eooe.gr/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://eooe.gr/images/free-robux-come_GM431946152.pdfIn PDF document text
    • http://eooe.gr/images/monttechscom-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://eooe.gr/images/hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • http://eooe.gr/images/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://eooe.gr/images/microsoft-rewards-robux_GM431946152.pdfIn PDF document text
    • http://eooe.gr/images/download-coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
    • http://eooe.gr/images/minecraft-thumbnail-maker-free_GM479516143.pdfIn PDF document text
    • http://eooe.gr/images/free-private-minecraft-server_GM479516143.pdfIn PDF document text
    • http://eooe.gr/images/free-script-executor-roblox_GM431946152.pdfIn PDF document text
    • http://eooe.gr/images/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
    • http://eooe.gr/images/make-robux_GM431946152.pdfIn PDF document text
    • http://eooe.gr/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://eooe.gr/images/minecraft-pe-apk-download_GM479516143.pdfIn PDF document text
    • http://eooe.gr/images/hack-my-game-xyz-coin-master_GM406889139.pdfIn PDF document text
    • http://eooe.gr/images/haktuts-coin-master-free-daily-spins_GM406889139.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_off000047cc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47CC 25660 bytes
SHA-256: a3eac792d7d63ab5a0b19f885e96f0b9443edcc45f78d48e606045aca3230e6c
font_01_sfnt_off00008176.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8176 18636 bytes
SHA-256: 87f24663a42dd6b293392c347e04cdb733edd0a8e3460407db1e5d5abad0db8a

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