Malicious PDF — malware analysis report

Static analysis result for SHA-256 e274a5727eea1db8…

MALICIOUS

PDF

33.9 KB Created: 2021-07-06 07:09:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4617a52d98a648a44402d3942c9e52f7 SHA-1: 363437463e7b3a09692cf37e6b0b4a4075aab00b SHA-256: e274a5727eea1db8ca462d49993a803d121c79d6e82717398f8f8b61008437ee
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded URLs, with a primary lure related to 'Robux Adder' and game hacks. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates a deceptive intent, likely to redirect users to malicious websites or initiate downloads. While no scripts were explicitly extracted, the presence of embedded URLs and the ML classification suggest a high likelihood of malicious activity, potentially exploiting PDF vulnerabilities to execute further payloads.

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/431946152/robux-adder-game-hack PDF link annotation
    • http://pustakafpsi.uin-suska.ac.id/repository/roblox-hack-apk-android-1_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/how-hack-to-roblox_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/free-download-robux_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/links-to-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/is-minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/free-robux-hack-2021-iphone_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/coin-master-app-for-free-spins_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/how-to-get-packages-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/how-to-hack-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/archery-master-3d-hack-unlimited-coins-cheats_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/robux-points-redeem-free-gift-cards_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/roblox-free-download-meep-city_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/coin-master-free-spin-today-2021_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/free-roblox-animations_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/get-more-robux_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/instant-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30C9 21640 bytes
SHA-256: f97edc17839abbf9d0eaf58a7a862bbc29b4d202df8d2057f0b5541a4ff53ed8
font_01_sfnt_off00006060.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6060 18728 bytes
SHA-256: 3b2fbc11f7fc4968e007f9e7fb47eadfc314f2fb387d3ffbdf3f14f8961f86d5

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