Malicious PDF — malware analysis report

Static analysis result for SHA-256 32ebc29ee6648812…

MALICIOUS

PDF

38.4 KB Created: 2021-07-03 23:36:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 7e74fbe83038d329bf3425afa34722a5 SHA-1: 46ff60058aff2ffd8e0be0dc18a04a7fc805ca06 SHA-256: 32ebc29ee6648812e15b4b2b1fe06cdd4f0cb71a8f3f8f8d12f3c94004ea84b9
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links to websites offering game hacks and free in-game currency, such as 'coin-master-hack-apk-2021-download-game-hack'. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of such links, suggesting a malicious link farm designed to lure users. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the document's structure and embedded links point towards a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9899

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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-hack-apk-2021-download-game-hack PDF link annotation
    • http://opac.salatigakota.go.id/slims7//repository/free-minecraft-account-and-password-2021_GM479516143.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/free-robux-no-human-verification-jeuxvideocom_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/bugmenot-roblox-free_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/roblox-hack-robux-download-ios_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/coin-master-ios-hack-download_GM406889139.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/https-free-robux-cf_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/free-robux-no-human-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/tuxedo-roblox-free_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/how-to-spawn-in-working-gears-roblox-hack-script_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/hack-money-roblox-bee-swarm-simulator_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/robux-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/free-robux-codes-2021-pastebin_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/free-thumbnails-roblox-game_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/free-robux-no-survey-no-human-verification-no-download_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/how-to-hack-roblox-for-robux-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/coin-master-free-account_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000032b3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32B3 22940 bytes
SHA-256: b18c8e6b1d896d64ff973104692d9b840f9ff4747d1d24429ab413471e1e7889
font_01_sfnt_off0000666b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x666B 2896 bytes
SHA-256: c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd
font_02_sfnt_off00007050.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7050 19160 bytes
SHA-256: 08c3d26020315796c296df9400c9a2a920b0dbbe4ac3986bc7fb3bd2c9b27f96

Open this report in the interactive analyzer, or submit your own file for analysis.