Malicious PDF — malware analysis report

Static analysis result for SHA-256 919e82d9cead78a8…

MALICIOUS

PDF

43.8 KB Created: 2021-05-20 01:35:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b7fb8d1b5e4b25232a6ec72155719a18 SHA-1: 1d6e238eb8596a30ab47a56927ae69537945262b SHA-256: 919e82d9cead78a8b10564400b28815fc7ab2b0b7fc4543a8712156532da9e9a
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 0.9969

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/406889139/free-spin-and-coin-blogspot-com-game-hack PDF link annotation
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/how-do-u-get-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/coinmasterfree_GM406889139.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/free-spin-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/free-minecraft-java-server_GM479516143.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/online-coin-master-free-spin-app_GM406889139.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/minecraft-ios-mods_GM479516143.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/coin-master-daily-free-coins-link-today_GM406889139.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/how-to-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/free-robux-group-payouts_GM431946152.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/minecraft-windows-10-hacked-client_GM479516143.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/get-free-robux-today_GM431946152.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/coin-master-70-spin-link-today_GM406889139.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/coinmasterdailyfreespins-com_GM406889139.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/sites-for-free-spins-for-coin-master_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ce4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CE4 25664 bytes
SHA-256: 23a515dec8256857f958a39dd8e794f9dcfe4b4465b9865bd706187e15804eff
font_01_sfnt_off00008813.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8813 18668 bytes
SHA-256: 8c60560f4ae8b9a96d4078b3ef6dfb307c9e4974d6ab2cc1a47a3a2c49762880

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