Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ce20b66b6283be1…

MALICIOUS

PDF

44.2 KB Created: 2021-06-04 01:14:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 6493e3fb4ce18468f3000ef91f92272a SHA-1: 5f3b4ad3e7eaaaf0e2d95e45a5891a6fd2436416 SHA-256: 5ce20b66b6283be12d147b8f47cf08047a7203d1f48167c6689d127a29080845
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure for 'free robux' and game hacks, directly linking to a suspicious URL. This indicates a social engineering tactic to redirect users to a potentially malicious site. The ML classifier also flagged the PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/431946152/roblox-free-robux-codes-game-hack PDF link annotation
    • http://lib.teknik.unimal.ac.id//repository/daily-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/pokemon-go-free-codes-2021_GM1094591345.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/hack-coin-master-using-pc_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/toolbox-for-minecraft-ios_GM479516143.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/how-to-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/how-to-make-a-free-server-in-minecraft-java_GM479516143.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/give-me-robux-now_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/coin-master-free-spins-link-2021-blogger_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/i-need-robux_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/coin-master-mod-version-free-download-34-4_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/minecraft-free-apk-java-edition_GM479516143.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/is-it-possible-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-minecraft-education-edition_GM479516143.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/free-unlimited-coin-master-online-tool_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/hack-master-coin_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_off00005106.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5106 24808 bytes
SHA-256: 7743aea775b6f262e2ae4e5d096b69f5d9b68c3483535a27a6d8a5f83a886174
font_01_sfnt_off00008a34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A34 18260 bytes
SHA-256: 40a15a9049e9412bdd5c9a35f1903570ad5947e976b8939b833c9d7797e77bf9

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