Malicious PDF — malware analysis report

Static analysis result for SHA-256 abf3980aeef0eaf2…

MALICIOUS

PDF

44.9 KB Created: 2021-05-11 20:03:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 8ea0bf2a912f5825868f4b70954608ea SHA-1: c913f5305f7fa64b95bdf7042224469cf28e584a SHA-256: abf3980aeef0eaf222e3c41d99be400b2c9b71efc5a22062c1a961b006963e24
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 0.9632

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/431946152/robux-page-game-hack PDF link annotation
    • http://www.myresidence.lu/userfiles/files/coin-master-firebird-card-free_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/como-hackear-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/como-descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/robux-fun-hack_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/minecraft-for-ps3-free_GM479516143.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/wurst-download_GM479516143.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/mcpe-master-coin-hack-apk_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/minecraft-windows-10-edition-hacks_GM479516143.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/daily-coin-master_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/minecraft-free-school_GM479516143.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/roblox-hacked-version_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/do-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/minecraft-free-install_GM479516143.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000048f8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48F8 24788 bytes
SHA-256: 61f7859569642c78b2e9648116c1605675e4e676548c93a35a07df7e55ffbc7f
font_01_sfnt_off00008253.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8253 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off00008c04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C04 18520 bytes
SHA-256: 5c5a9e016ebd8405bc7924fb9e9ebc34b94767cfb6a9fd13d56cd9d284b9d9b8

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