Malicious PDF — malware analysis report

Static analysis result for SHA-256 edd822f3d9adaa79…

MALICIOUS

PDF

48.7 KB Created: 2021-06-03 06:53:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 75687584376a44444a10b81bdba202b3 SHA-1: 7c5e0369b35fa0ece5dd71fd67da2d63bc078cb8 SHA-256: edd822f3d9adaa7969d71f340e1dfcba4ba6e83de2873f5e40cc05407cc7fb4e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple links to known malicious redirectors, specifically advertising "game hacks" and "free generators" to lure users. The primary malicious URL identified is https://netcdn.online/app/479516143/minecraft-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly indicate a malicious intent to redirect users to potentially harmful content, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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/479516143/minecraft-game-hack In PDF document text
    • http://www.opac.stieimalang.ac.id/repository/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-free-spin-redeem-code_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/robux-com-free_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/how-to-download-minecraft-for-free-on-windows_GM479516143.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/can-i-have-robux_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/cant-play-any-game-roblox-gor-hacked_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-daily-spin-link_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/pubg-uc-via-login_GM1330123889.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-free-spins-and-coins-group_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/robux-free-promo-codes_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_off000050f5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50F5 24908 bytes
SHA-256: 632d19d7c1b1cdbcb62dfd4969a12986597c8ce6355d5205adf9e3b60c4ae0c6
font_01_sfnt_off0000890b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x890B 3020 bytes
SHA-256: eedce20c19bed174ebe453a0c0095ca54ef1c0cf763914f699a20348cea05fc2
font_02_sfnt_off0000935f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x935F 2816 bytes
SHA-256: 4555740682277f0055d57b15bd0ba953e5b51415ea3d21c93db391eace072d4f
font_03_sfnt_off00009d70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D70 17568 bytes
SHA-256: ce96ee2cb1800a95c911c77dfe81c9a72a479049c6676c05affe2ae793ebac2d

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