Malicious PDF — malware analysis report

Static analysis result for SHA-256 46fd81b62364c099…

MALICIOUS

PDF

35.2 KB Created: 2021-07-04 13:13:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 60e16c5746dce68f68bb128c0578d874 SHA-1: 96bbdc0a443facb850e806a109fe38cdf54d832f SHA-256: 46fd81b62364c099dcffbe7025caf0d99dc8b76dcf9dda2c0033e250afafe973
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.tw/app/406889139/coin-master-free-spin-link-today-download-game-hack PDF link annotation
    • http://lib.bppsdmp.pertanian.go.id/main/repository/coin-master-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/kupang/repository/hacks-para-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/kupang/repository/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/ciawi/repository/how-to-hack-any-roblox-games-using-cheat-engine_GM431946152.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/ciawi/repository/roblox-electric-state-darkrp-hack-money-script_GM431946152.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/kupang/repository/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/main/repository/assasin-roblox-sccript-hacks_GM431946152.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/kupang/repository/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/ciawi/repository/without-pokemon-go-free-account-2021_GM1094591345.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/main/repository/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/kupang/repository/daily-coin-master-free-spin-link-facebook_GM406889139.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/kupang/repository/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/main/repository/free-shirt-templates-roblox_GM431946152.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/ciawi/repository/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/ciawi/repository/free-spin-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/main/repository/how-to-get-free-robux-joke_GM431946152.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/kupang/repository/roblox-screensaver-free_GM431946152.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/main/repository/best-free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/ciawi/repository/how-to-get-free-robux-on-2021_GM431946152.pdfIn PDF document text
    • http://lib.bppsdmp.pertanian.go.id/main/repository/tiktok-i-feel-kinda-free-song_GM835599320.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_off00003261.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3261 22432 bytes
SHA-256: 4951b51ec67d53e152af71f0ce1ab6d36b8dab44eb68bf4e99bdaa2fac4506c3
font_01_sfnt_off0000647e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x647E 19104 bytes
SHA-256: 1895fc22eac210dcee8774f96ffcb0cbff56cbfdafdc0278c931d408205b68ac

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