Malicious PDF — malware analysis report

Static analysis result for SHA-256 06254a10fa5e449b…

MALICIOUS

PDF

56.2 KB Created: 2021-06-03 22:11:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 781bf8b676587ea7083f7024d2bd963c SHA-1: e5fc6859f4fc92ebc73f1fe7b60f98d4941d9f0b SHA-256: 06254a10fa5e449bfd18061c77e86752c2999584c66afc4c1e9ab001333d86d9
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 0.9718

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.online/app/431946152/websites-to-get-free-robux-game-hack PDF link annotation
    • http://library.acehresearch.org/repository/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://library.acehresearch.org/repository/roblox-website-robux_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-downloads-for-coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/is-minecraft-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • http://library.acehresearch.org/repository/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/how-to-get-free-daily-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-tiktok-coins_GM835599320.pdfIn PDF document text
    • http://library.acehresearch.org/repository/roblox-girl-avatar_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/roblox-free-play-no-download_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/how-to-get-800-robux-for-free_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-hack-mod-apk-2021_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/hacks-for-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/multiple-roblox-games-hack_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/without-tiktok-free-followers_GM835599320.pdfIn PDF document text
    • http://library.acehresearch.org/repository/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/how-to-earn-free-stars-on-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000053d8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53D8 26836 bytes
SHA-256: b0045f409c2ce99efab8996bd088175fd555533dfe7bdbb2797179f0d421bbc6
font_01_sfnt_off0000916c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x916C 12800 bytes
SHA-256: 101f6334f34a1af3279f2f5abd84d35f0880b215ceba589c816f962dafffd9db
font_02_sfnt_off0000b94a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB94A 18436 bytes
SHA-256: 6ab9ab31980840835fbaeca164a74f0e8188db39a6ce5c5e4face3e95ba0b523

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