Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ec9154c9df4163c…

MALICIOUS

PDF

33.9 KB Created: 2021-07-04 21:06:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: caf86a40c09b8e3e43e6674e606d6e61 SHA-1: d64e45b26e3d70d90dbb9a3de5f6fc8f41b213a1 SHA-256: 1ec9154c9df4163ce57fe98768c3682b6647e1e308ba068d74dac1ef48649ce4
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.tw/app/406889139/coin-master-free-spin-link-new-game-hack PDF link annotation
    • https://fib.ub.ac.id/sac/repository/sulavan-hacked-my-acount-on-roblox_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/minecraft-free-minecraft_GM479516143.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-free-straight-face_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/coin-master-game-hack-kaise-kare_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/coin-master-hoe-to-get-extra-free-spins_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/coin-master-hack-spins-download_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-and-tix-generator_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-hack-site_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/hack-strucid-stop-start-roblox_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-hack-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/bhop-hack-roblox_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/coin-master-haktuts_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/how-to-hack-coin-master-spin-ios_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F49 22344 bytes
SHA-256: ad52cca80c33c3bfef84b1479dc939fac53334bf7886e4c00f99b37e8c56e088
font_01_sfnt_off00006100.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6100 18508 bytes
SHA-256: 4c7e6b357baaf24b5f33b7975118fbee10cac1ff19ac3018eace18aaa9f66f9c

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