Malicious PDF — malware analysis report

Static analysis result for SHA-256 6eb0f888096cbcda…

MALICIOUS

PDF

41.8 KB Created: 2021-05-12 02:07:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 8ff243c379b90bb5f387d9ba3e6a58e4 SHA-1: 805d10474738e424f67ef9d4c315942711daf0b7 SHA-256: 6eb0f888096cbcdab03965f961684a078ed7f2542e40dc1960c003bb76a86731
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including a prominent one to 'netcdn.xyz' which is flagged as a game hack redirector. The document body, though partially corrupted, contains text related to game hacks and generators, indicating a social engineering lure. The presence of embedded URLs and the nature of the lure suggest a phishing or scam attempt, likely leading to a malicious website or further malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/406889139/coin-master-no-download-app-but-play-for-free-game-hack PDF link annotation
    • http://library.asih-husada.ac.id/repository/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/minecraft-mod-menu_GM479516143.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/coin-master-free-rare-cards_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/500-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/free-links-coin-master_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/picture-roblox_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/como-hackear-coin-master-en-espaol_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/coin-master-pc-hack-download_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/moonactive-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/earn-rbx_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/robux-only_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/free-spins-and-coins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/free-minecraft-mods-for-xbox-one_GM479516143.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/roblox-free-hats_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/free-robux-groups-2021_GM431946152.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_003_off00004931.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4931 23476 bytes
SHA-256: aa0702632f2b878a70af985638a3af1c3d9fed2fedfe99324c6bdfcb9a6e547f
font_01_sfnt_off00007e4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E4F 19156 bytes
SHA-256: d7b6f490b42dcfb2d6122599357b88a3225a96ba620445c96d399f93ea3e3daf