Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ab324fa5ff92620…

MALICIOUS

PDF

34.2 KB Created: 2021-07-07 12:07:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: f2eca3e1345b11461cb87e36563d0fd7 SHA-1: a995ee6cd595130670e919374bf8fcfb50d4a975 SHA-256: 0ab324fa5ff9262071ae748fe6b192e299177b35ca90efa4b290bc93eaa8dffa
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites that offer game hacks and cheats, a common lure for phishing or malware distribution. The primary link, http://netcdn.tw/app/406889139/coin-master-hack-no-verification-ios-game-hack, is flagged as a known malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to redirect the user to malicious content, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/coin-master-hack-no-verification-ios-game-hack In PDF document text
    • http://mansatupati.my.id/__statics/gudangsoal/files/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://mansatupati.my.id/__statics/gudangsoal/files/coin-master-fun-free-spins_GM406889139.pdfIn PDF document text
    • http://mansatupati.my.id/__statics/gudangsoal/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://mansatupati.my.id/__statics/gudangsoal/files/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • http://mansatupati.my.id/__statics/gudangsoal/files/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
    • http://mansatupati.my.id/__statics/gudangsoal/files/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://mansatupati.my.id/__statics/gudangsoal/files/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://mansatupati.my.id/__statics/gudangsoal/files/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://mansatupati.my.id/__statics/gudangsoal/files/coin-master-34-4-hack_GM406889139.pdfIn PDF document text
    • http://mansatupati.my.id/__statics/gudangsoal/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://mansatupati.my.id/__statics/gudangsoal/files/the-conquerors-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://mansatupati.my.id/__statics/gudangsoal/files/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://mansatupati.my.id/__statics/gudangsoal/files/haktuts-2021-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://mansatupati.my.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://mansatupati.my.id/__statics/gudangsoal/files/how-to-hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • http://mansatupati.my.id/__statics/gudangsoal/files/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://mansatupati.my.id/__statics/gudangsoal/files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://mansatupati.my.id/__statics/gudangsoal/files/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://mansatupati.my.id/__statics/gudangsoal/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://mansatupati.my.id/__statics/gudangsoal/files/how-to-get-free-tiktok-followers_GM835599320.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_002_off000030d4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30D4 22600 bytes
SHA-256: ea5e04db436a4984ae99919cf6aa7f329ba57bd6cde4daa79b3d13f0821ef4f4
font_01_sfnt_off00006329.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6329 18140 bytes
SHA-256: 17da5d703c5758f46f1af0ed1315e04c8ea1a1cae7dab9e1c5c22a4f69c629d7

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