Malicious PDF — malware analysis report

Static analysis result for SHA-256 43c74d7098ccf783…

MALICIOUS

PDF

34.7 KB Created: 2021-07-04 11:24:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 7f76e26c3e13dffb7e402bd167f1d28b SHA-1: 13eb11b1e647fbacd64ad0cb16eb210a6b875ac8 SHA-256: 43c74d7098ccf7839ff5d9a13b19581910182339bfdfeb9666e471dc1216986e
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/how-to-hack-coin-master-game-without-root-game-hack PDF link annotation
    • http://perpus.stmik-im.ac.id/repository/google-chrome-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-spin-link_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-free-rich-accounts-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/codes-roblox-hack-the-bank_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/exploit-free-roblox-not-win-rar_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-get-free-snacks-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-titanic-free-radi-ov3rmillion_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/actual-working-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/ame-kit-how-to-earn-your-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/minecraft-apk-android-free_GM479516143.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-hack-client-mac_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-get-robux-cheat-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/where-in-roblox-can-i-find-free-gems_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/prototype-free-download-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-get-verified-on-tiktok-for-free-2021_GM835599320.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-coins-and-spins-coin-master_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_off0000306c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x306C 22712 bytes
SHA-256: 33f0358fc22b1a89cbc9e6cd06dd0edebc56687951a766f62551a4d52c5bb6d4
font_01_sfnt_off0000631d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x631D 18932 bytes
SHA-256: 09c7132829cd078d9a38136ec8ce06a43dec18f251ee3210dd6d9bf6bbd0cdcb

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