Malicious PDF — malware analysis report

Static analysis result for SHA-256 0aff7df4c284084b…

MALICIOUS

PDF

45.5 KB Created: 2021-06-07 13:20:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: e19b17a3a42aaccbd8c11c12c37e532d SHA-1: 23f54fb398fa82679842b27088ca7da272dcfb98 SHA-256: 0aff7df4c284084b73b3d9a31b64c2951abd46dc47290eaab73aae53905f6c33
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and generators, directing users to a suspicious URL. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content. No scripts were extracted, but the document's structure and embedded links suggest it's part of a phishing or malware distribution chain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/one-piece-millenium-roblox-dark-hack-game-hack PDF link annotation
    • http://library.persadabunda.ac.id/repository/roblox-sign-in-free_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-spins-on-coin-masters_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/wurst-mc_GM479516143.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/hack-the-coin-master_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-robux-come_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/coin-master-hack-using-cheat-engine_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-minecraft-account-reddit_GM479516143.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/minecraft-that-you-can-play-for-free_GM479516143.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-roblox-dominus_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/coin-master-free-daily-spins-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000053d5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53D5 25996 bytes
SHA-256: 9e4baea54b7145f5ac4b45726c6397bc4db8093d582f7a307909ee7c0d3c1596
font_01_sfnt_off00008ce8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CE8 19220 bytes
SHA-256: 3c6337374f950b3e91e0f6a627180f6a0ab10021d500b1b5d1bd29cc95208270

Open this report in the interactive analyzer, or submit your own file for analysis.