Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f98d8c15245411c…

MALICIOUS

PDF

45.4 KB Created: 2021-05-13 10:28:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 660dbae44c01fae8415d705c9c417db5 SHA-1: 0593d0222400f9ff53bbd084d37e692a70a3bc24 SHA-256: 3f98d8c15245411c2218a76a16a88a7b26568b5769dfbd621cb2a69d0a9a72c3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/479516143/minecraft-anarchy-server-no-hacks-game-hack PDF link annotation
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/roblox-got-talent-piano-hack_GM431946152.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/hacks-for-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-iphone_GM406889139.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/minecraft-pe-016-0-apk-download-free_GM479516143.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/roblox-source_GM431946152.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/roblox-getting-hacked_GM431946152.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/krnl-roblox_GM431946152.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/hack-coin-master-game-apk_GM406889139.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/roblox-hack-site_GM431946152.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-haktuts_GM406889139.pdfIn PDF document text
    • http://class.maniclotim.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-2021_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a95.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A95 25460 bytes
SHA-256: 8bd9cb57f7d38c26761edaa469ee622cb0e4bab8399b230950ab804d42955ccd
font_01_sfnt_off00008469.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8469 3056 bytes
SHA-256: dd24a0ab94df4552e459bd06fd01b0fd3f021c1d51d1d64407070e735974a028
font_02_sfnt_off00008edb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EDB 18340 bytes
SHA-256: 25c1286fde013f5a892faec283bed83878941bbea70c27f39483b80af7cfb438

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