Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbae0e18a9999969…

MALICIOUS

PDF

51.2 KB Created: 2021-06-07 03:37:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 657a1e13bb03ca89718f367804a3d23e SHA-1: ffb88a7f319b272a5895722d7f2b9e2b1eba96b2 SHA-256: bbae0e18a999996976c855e5b848ffeb545bcb53a27f6b9ae435de0b3277f274
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one identified as a malicious redirector, leading to a lure for free Robux or game hacks. The document body, though partially corrupted, contains text related to these lures and the authoring application. The presence of embedded URLs and the nature of the lures strongly suggest a phishing or scam attempt, likely delivered as a spearphishing attachment. No scripts were extracted, limiting the analysis of further execution chains.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9713

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/free-robux-works-no-surveys-no-human-verification-2021-game-hack In PDF document text
    • https://i-tech.ac.id/perpus/repository/get-tiktok-followers-free_GM835599320.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/minecraft-java-account-free_GM479516143.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/minecraft-games-to-play-for-free_GM479516143.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/minecraft-java-hacks_GM479516143.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/minecraft-112-hacked-client_GM479516143.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/free-robux-games_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/roblox-games-free_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/cheat-jailbreak-roblox-fr_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005015.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5015 24784 bytes
SHA-256: 2ce46de0325f90fabe98cecb39b949628117a22e429bfb13554f49d444a04672
font_01_sfnt_off0000890e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x890E 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off00009319.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9319 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_03_sfnt_off0000a02a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA02A 19924 bytes
SHA-256: 4ae1c436076de778dcf2ecd240f365d8c78993f372899d1ea4afaee4aa318f00

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