Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab5eec16d68382f2…

MALICIOUS

PDF

34.8 KB Created: 2021-06-20 04:44:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 8db6ae3ae320c1d8780cf6305b7a8076 SHA-1: 13ef3e3744155b7367583300a1fff4505a9c7558 SHA-256: ab5eec16d68382f2e40dd9130f211fb4587a2cd2f773294ab0c87373fe7ae9c7
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/roblox-booga-booga-cheat-engine-codes-game-hack PDF link annotation
    • http://library.umuslim.ac.id//repository/how-to-get-free-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/working-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-minecraft-skin-packs_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/regal-world-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/static-moonactive-net-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-hack-roblox-games-no-downloads-2021_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/http-wwwrobux-hack_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-how-to-make-a-free-model_GM431946152.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/roblox-gift-card-free-codes_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-fan-page-facebook_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/is-there-any-way-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/minecraft-116-1-download_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-hack-version-download-2021_GM406889139.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_off00003088.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3088 22552 bytes
SHA-256: 1645c4239e1a5b6f1aff6ec6f66c4162634dc58e29cab35354ee70e1d5af87b3
font_01_sfnt_off000062e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E0 19048 bytes
SHA-256: 7addbf18b9155895fcdc5c34547ab177e7457d2d664af8b09a7cf1ca77d1586a

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