Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5a6c3fae6003f88…

MALICIOUS

PDF

43.8 KB Created: 2021-06-03 22:23:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: a89f9b8fac11ab934613de4ffd8ddf36 SHA-1: 79db2ae533796494a7713db1d10dda25127c8483 SHA-256: e5a6c3fae6003f8895185d7331380258b968aab99945793b8de996c5a593f291
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by an ML classifier. It uses a password-protected-archive lure. 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 0.9865

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.online/app/479516143/minecraft-pocket-apk-game-hack PDF link annotation
    • http://library.polita.ac.id/repository/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://library.polita.ac.id/repository/how-do-you-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://library.polita.ac.id/repository/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • http://library.polita.ac.id/repository/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://library.polita.ac.id/repository/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://library.polita.ac.id/repository/coin-master-twitter-free-spins_GM406889139.pdfIn PDF document text
    • http://library.polita.ac.id/repository/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.polita.ac.id/repository/roblox-gift-card-online-free_GM431946152.pdfIn PDF document text
    • http://library.polita.ac.id/repository/minecraft-ios-mods_GM479516143.pdfIn PDF document text
    • http://library.polita.ac.id/repository/is-minecraft-free-on-mac_GM479516143.pdfIn PDF document text
    • http://library.polita.ac.id/repository/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://library.polita.ac.id/repository/free-cracked-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://library.polita.ac.id/repository/coin-master-hack-2021-without-human-verification_GM406889139.pdfIn PDF document text
    • http://library.polita.ac.id/repository/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://library.polita.ac.id/repository/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.polita.ac.id/repository/how-to-get-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://library.polita.ac.id/repository/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://library.polita.ac.id/repository/coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • http://library.polita.ac.id/repository/free-coin-master-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://library.polita.ac.id/repository/minecraft-cheats-pc-2021_GM479516143.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
stream_004_off00005220.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5220 24288 bytes
SHA-256: c6330fd7077bddedd868c71f001143269f8e51bf662e930c611b32b905a73217
font_01_sfnt_off00008902.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8902 18208 bytes
SHA-256: 43fabaa7baa2069dea089d396f6a12271a87df7a231cffc83c7f5458ac3d8eee

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