Malicious PDF — malware analysis report

Static analysis result for SHA-256 1183eafcd6bde10c…

MALICIOUS

PDF

44.2 KB Created: 2021-06-03 07:16:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2f84d2009063dad7e13c02bd7341ff58 SHA-1: 15f60b8ac5b0a7a02bd3b9963b89ac2a6ad8b4a6 SHA-256: 1183eafcd6bde10c983ee25195893ad3133180f67227ec93d676a3d262efb3d8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external websites, including a known malicious redirector. The document body and embedded links suggest a lure for users to obtain 'free Robux' or 'game hacks', which likely leads to the download of a second-stage payload. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent.

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.online/app/431946152/code-free-robux-game-hack In PDF document text
    • http://lib.icbc-indonesia.org//repository/100-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/free-roblox-toys_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/free-coins_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/coin-master-hack-tool-without-human-verification_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/coin-master-game-free_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/coin-master-free-spins-twitter_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/free-robux-picture_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/change-roblox-username-free_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/impact-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/coin-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/free-spins-for-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/how-do-you-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/mobihack-roblox-hack_GM431946152.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_off00005250.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5250 24600 bytes
SHA-256: 62bd11cfea6e306bfea436e186e3a26ff58ff671d814a01c941e698eba2cc275
font_01_sfnt_off00008a78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A78 18188 bytes
SHA-256: 00280273b0975bee0187bf1a1cc0e29ac13cf800f2976c84d5f4ba53341fee41

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