Malicious PDF — malware analysis report

Static analysis result for SHA-256 90be904e91dd9824…

MALICIOUS

PDF

33.6 KB Created: 2021-07-03 14:03:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 41bd96670955b76b026dae982458ccbe SHA-1: 53f6cfb92b84e4e73b7b72c5da85299e0f653427 SHA-256: 90be904e91dd98244bc282913473be741301197bd80e1a8de16d05f2e77a5584
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 0.9974

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.tw/app/431946152/roblox-free-roblox-game-hack PDF link annotation
    • https://mialfalahkanigoroblitar.sch.id/__statics/gudangsoal/files/please-can-i-have-robux-for-free_GM431946152.pdfIn PDF document text
    • https://mialfalahkanigoroblitar.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-link_GM406889139.pdfIn PDF document text
    • https://mialfalahkanigoroblitar.sch.id/__statics/gudangsoal/files/free-clothes-on-roblox-image_GM431946152.pdfIn PDF document text
    • https://mialfalahkanigoroblitar.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://mialfalahkanigoroblitar.sch.id/__statics/gudangsoal/files/this-color-combanation-gves-you-free-robux_GM431946152.pdfIn PDF document text
    • https://mialfalahkanigoroblitar.sch.id/__statics/gudangsoal/files/free-robux-giveaway-live-stream-now_GM431946152.pdfIn PDF document text
    • https://mialfalahkanigoroblitar.sch.id/__statics/gudangsoal/files/free-robux-admin-code-pastebin-no-inspect_GM431946152.pdfIn PDF document text
    • https://mialfalahkanigoroblitar.sch.id/__statics/gudangsoal/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://mialfalahkanigoroblitar.sch.id/__statics/gudangsoal/files/wfb-roblox-hacker_GM431946152.pdfIn PDF document text
    • https://mialfalahkanigoroblitar.sch.id/__statics/gudangsoal/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://mialfalahkanigoroblitar.sch.id/__statics/gudangsoal/files/coin-master-spin-link-free-download_GM406889139.pdfIn PDF document text
    • https://mialfalahkanigoroblitar.sch.id/__statics/gudangsoal/files/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • https://mialfalahkanigoroblitar.sch.id/__statics/gudangsoal/files/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • https://mialfalahkanigoroblitar.sch.id/__statics/gudangsoal/files/how-to-get-free-quirks-in-boku-no-roblox_GM431946152.pdfIn PDF document text
    • https://mialfalahkanigoroblitar.sch.id/__statics/gudangsoal/files/how-to-make-a-private-server-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://mialfalahkanigoroblitar.sch.id/__statics/gudangsoal/files/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • https://mialfalahkanigoroblitar.sch.id/__statics/gudangsoal/files/apk-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://mialfalahkanigoroblitar.sch.id/__statics/gudangsoal/files/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • https://mialfalahkanigoroblitar.sch.id/__statics/gudangsoal/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://mialfalahkanigoroblitar.sch.id/__statics/gudangsoal/files/roblox-free-robux-website_GM431946152.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
font_00_sfnt_off00002f35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F35 21796 bytes
SHA-256: b3c3d69c9113409ce118e9c148f3dbce7607dba4440cbfee5d26d9079404c10f
font_01_sfnt_off00005f69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F69 18652 bytes
SHA-256: 3b7ad0687cc38916e9ed387441e9d99f27df67e188eb0367be00fbed64432edc

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