Malicious PDF — malware analysis report

Static analysis result for SHA-256 166ccd2fa9e16b47…

MALICIOUS

PDF

41.7 KB Created: 2021-05-17 12:44:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 28d52812a2b7aedfd2ebdf9e25deca66 SHA-1: 7679ca3a071a23a24cecbae07ffb21c379d162e0 SHA-256: 166ccd2fa9e16b47a93fab0717af9dfd6ee7208878a7a17b81164f2256c99433
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks, directing users to a malicious URL. The ML classifier strongly indicated maliciousness, and the embedded URL is associated with a game hack generator. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest a phishing or redirection attempt to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/479516143/how-to-get-hacks-on-minecraft-game-hack PDF link annotation
    • http://asiasieja.pl/images/20210-robux_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/legit-coin-master-hack-october-2021_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-spin-ml-link_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/minecraft-linux-free_GM479516143.pdfIn PDF document text
    • http://asiasieja.pl/images/roblox-tracker_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/games-like-coin-master_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/how-to-get-roblox-money_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/minecraft-free-minecraft_GM479516143.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/toolbox-for-minecraft-pe-ios_GM479516143.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-hack-apk-ios-download_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • http://asiasieja.pl/images/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • http://asiasieja.pl/images/hack-coin-pro-coin-master_GM406889139.pdfIn PDF document text
    • https://playhack.in/minecraftIn 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
stream_003_off000048dd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48DD 24992 bytes
SHA-256: 6eff85704530bea3d65712cb0582f55cf31bc501464033fa67f64f0d2bcfc005
font_01_sfnt_off00008198.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8198 18044 bytes
SHA-256: 9f1e79a3b07781afcdd90921eb79530491bd6e36a063b246dd64f6dc9a4bd67a

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