Malicious PDF — malware analysis report

Static analysis result for SHA-256 d530180aa1250b5f…

MALICIOUS

PDF

33.5 KB Created: 2021-07-07 06:48:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 278ebc48dd16a999658a3614c045eab0 SHA-1: 2d9a94380112c70b8d778cd435dc6691bef3095e SHA-256: d530180aa1250b5f84d7c7b158db510facad3a72037569390706e7854868c5d7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including one identified as a 'free generator / game hack' redirector. The document body and extracted URLs suggest a lure for game-related cheats or currency, which is a common social engineering tactic to lead users to potentially malicious sites. No scripts were extracted, but the presence of embedded URLs and the ML classifier's high confidence indicate a malicious intent to redirect users.

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/479516143/cool-free-minecraft-skins-game-hack PDF link annotation
    • https://ourlady-elearning.com/userfiles/files/free-roblox-toy-codes_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/easy-robux-hack_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/coin-master-32-mod-hack-unlimited_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/free-spins-coin-master-android_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/coin-master-free-spins-link-today-blogspot_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/roblox-promocode-hack-2021_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/funny-hack-scripts-roblox-pastebin_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/roblox-all-games-hack-2021_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/coin-master-invite-friends-free-spins_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/hack-para-roblox-booga-booga_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/free-robux-real-working_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/coin-master-free-spins-generator-no-human-verification_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/moonactive-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/free-roblox-promo-codes-july-2021_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/coin-master-hack-apk-april-12-2021_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_off00002efa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EFA 22412 bytes
SHA-256: 22e2bc084053849d1cd237b535836b6c04d2153a012a556f419d978155eae5aa
font_01_sfnt_off00006084.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6084 18240 bytes
SHA-256: b4c51c0f4cfa542f56e849e24631c283cf0f0c701d0556af4dc462a34ac74f1d

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