Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ed9363c4ca6f9c4…

MALICIOUS

PDF

34.0 KB Created: 2021-06-20 10:21:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: e3eac5b1666f9dd4f527a1d84eb78682 SHA-1: a72375d3cf5cc84fbb20d4c5acf16faa99c1fab8 SHA-256: 5ed9363c4ca6f9c4e35bd2d6880aa9e2e7a860c71069c3f13c875cd60b642a6c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/promo-codes-to-get-free-robux-game-hack PDF link annotation
    • http://library.umuslim.ac.id/repository/coin-master-35-13-hack-download_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/how-to-get-free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-20-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-online-game-free-play_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/hack-the-coin-master-game_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/minecraft-bedrock-download-pc-free_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/get-coin-master-spins-free_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-minecraft-skins-ps4_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/new-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-system_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/pokemon-go-no-free-remote-raid-pass_GM1094591345.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/hack-coin-master-app_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-do-you-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/but-link-says-free-robux_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
font_00_sfnt_off00002d9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D9C 22140 bytes
SHA-256: e3ead25bbe8d18f42f656a4a00a9647e46c6787afec1b6155e0f7de8544b7f6d
font_01_sfnt_off00005ea7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA7 19408 bytes
SHA-256: 33ce494440ad385d813675e202d0582184282b0a964bafd641ab8940aca64bdd

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