Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0a557152071bd71…

MALICIOUS

PDF

36.0 KB Created: 2021-06-19 14:08:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 4c8e4ed95e0ccb769e3f3d94e34daa4d SHA-1: bee380f366bb24bcfbf25df77a3964c72926147b SHA-256: f0a557152071bd7129eec012730ee47788f1649a66528b4a14d7ec976a214b55
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 0.9980

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 http://netcdn.co/app/431946152/how-to-get-robux-for-free-100pasant-works-game-hack PDF link annotation
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/when-was-minecraft-free_GM479516143.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/free-draw-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/roblox-granny-hack-script_GM431946152.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/coin-master-offline-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/coin-master-raid-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/coin-master-hack-ios-apk_GM406889139.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/minecraft-free-download-android-apk_GM479516143.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/minecraft-com-free_GM479516143.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/public-enemy-sun-prairie-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/minecraft-pocket-edition-hack_GM479516143.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/master-free-spin_GM406889139.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/op-rewards-free-robux_GM431946152.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
font_00_sfnt_off00003390.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3390 22280 bytes
SHA-256: c5df4db696d685a2616b0874725093c5570fa1291bd1008046a422237befb957
font_01_sfnt_off00006552.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6552 19804 bytes
SHA-256: 55b319f997746ee2a7112e277851d3edd18d891044856f7dc02b3349dda07fb8

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