Malicious PDF — malware analysis report

Static analysis result for SHA-256 65b1f8263e1b2064…

MALICIOUS

PDF

33.1 KB Created: 2021-06-18 23:17:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 7db80f08f3e2a36d78a388223a21cc81 SHA-1: 69b56b864709bb440381690c3618c58f4a6545f7 SHA-256: 65b1f8263e1b2064842a1851bde77a50e8b3724ed46154696041cdbbcc486b50
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free game currency and hacks, directing users to a suspicious URL. The ML classifier strongly indicated maliciousness, and the presence of numerous game-related lures suggests a phishing or scam campaign. No scripts were extracted, but the document's structure and embedded URLs point to a social engineering attack.

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.co/app/431946152/get-gift-cards-roblox-for-free-game-hack PDF link annotation
    • https://ethraa.ae/userfiles/files/free-minecraft-account-and-password-generator_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-spins-and-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-robux-group_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/earn-robux-today_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-cheat-free_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-free-spins-whatsapp-link_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/how-to-get-a-refund-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/how-to-get-free-roblox-hair_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-apk-mod_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/minecraft-beta-free_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/oprewards-login_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/get-free-spins-in-coin-master_GM406889139.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_off00002c2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C2D 21760 bytes
SHA-256: 691072381d0a002bd17d80a48cdf4ba3aaa11c34383c5933537145234694a214
font_01_sfnt_off00005c22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C22 19048 bytes
SHA-256: e8543ac551e1bd8731f593f61c5b82fcb432ffa994cb8eb021ab5be49f5e7dc0

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