Malicious PDF — malware analysis report

Static analysis result for SHA-256 f612472b7073ba57…

MALICIOUS

PDF

46.2 KB Created: 2021-05-15 08:34:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 7674e2224aca185095f79642075d2771 SHA-1: 1e51ed59d47a0b4f7cbb11c06838a242b38a538c SHA-256: f612472b7073ba577e891131656ffac7668a00d5b89d4b985e7f821fa218224f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link disguised as a 'free generator / game hack' lure, which is a common social engineering tactic to trick users into downloading malware or visiting malicious sites. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/free-minecraft-website-game-hack PDF link annotation
    • https://esl.ipb.ac.id/images/hack-coin-master-for-iphone_GM406889139.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/coin-master-hack-spins_GM406889139.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/mcpe-master-hack-unlimited-coins_GM406889139.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/free-roblox-account-generator_GM431946152.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/how-do-you-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/hack-coin-master-apk-download_GM406889139.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/roblox-free-pets_GM431946152.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/hack-coin-master-android-2021_GM406889139.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/minecraft-launcher-free_GM479516143.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
    • http://www.freenom.comHeyIn 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
font_00_sfnt_off00004a4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A4B 27916 bytes
SHA-256: 0699f018103ede126c6e0113d463af28dcec48543da3e6d817e682f154a788a9
font_01_sfnt_off0000887f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x887F 3092 bytes
SHA-256: 3811f2fb1880daf4953efcc9c7427d9b438bced237490b00be4a6ec3ecea79e0
font_02_sfnt_off0000932a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x932A 17924 bytes
SHA-256: ff8b7dbb958b2e21889f0de65becea477e8c4948e76fdf7eea045243f3f10d1a

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