Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f9bb3d4c9a117a2…

MALICIOUS

PDF

44.4 KB Created: 2021-06-11 05:50:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 5572ed9af8b870dc6ffc48fb4fba1591 SHA-1: c914e516c0668c6de622dff2b6e6984339e5f824 SHA-256: 0f9bb3d4c9a117a2f2ea6167aa49142993c5c37d0ecc963b4563680219f2a078
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The primary lure URL is https://netcdn.tw/app/431946152/how-to-hack-in-skywars-roblox-game-hack. The document body, though heavily obfuscated, contains references to this URL and appears to be a lure for potentially unwanted content or further malicious downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/how-to-hack-in-skywars-roblox-game-hack In PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/coin-master-unlimited-spins-hack_GM406889139.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/free-robux-place-2021_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/how-to-play-coin-master_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/minecraft-pe-hacks-2021_GM479516143.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/legit-coin-master-hack-october-2021_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/how-to-get-free-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/coin-master-free-spins-and-coins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/roblox-heroes-online_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/hack-engine-on-roblox_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/how-many-levels-are-in-coin-master_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/roblox-games-with-free-boombox_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/coin-master-fan-page-giveaway_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/get-tiktok-followers-free_GM835599320.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/coin-master-free-spin-and-trading_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/roblox-free-admin-game_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/roblox-accounts-for-sale-free_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/minecraft-alt-accounts-free_GM479516143.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/collect-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/roblox-locus-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/xray-mod-minecraft-114_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005084.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5084 25368 bytes
SHA-256: f702b526bff6b04f378e40b63d7b2bf677f28f685702210ea8017591109befe5
font_01_sfnt_off000089fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89FB 18528 bytes
SHA-256: ebebe998abb4dc75b11e8e2d3b7e752a0d02dace9be0a4631ee60089a3843cf7

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