Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dab20e7d99caa0e…

MALICIOUS

PDF

45.6 KB Created: 2021-06-04 00:07:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: d6eaa5aae252c5bc7dc7f3399e585a74 SHA-1: 4d3da596dba09febf4a916ce56588070c44b5f4a SHA-256: 1dab20e7d99caa0e81473bf15697565a5e056d8f3f0ec9560a77e889ac2cb14d
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 0.9864

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 https://netcdn.online/app/406889139/free-spins-for-coin-master-game-game-hack PDF link annotation
    • http://digilib.iailm.ac.id/repository/how-do-you-get-roebucks-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-free-spins-2021-today_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/rbx-hut_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/roblox-free-items-glitch_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-minecraft-thumbnails_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-hack-pro-gamers-com_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-pokecoins-in-pokemon-go-free_GM1094591345.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/robux-money_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-sue-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/roblox-executor-free_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/village-4-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-free-spins-11-01-2021_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
stream_004_off00005201.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5201 29644 bytes
SHA-256: fb75861ae190457c636a23de3816a8c3f07c94f551ebfc4bdd837e1a823500a9
font_01_sfnt_off0000903b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x903B 18148 bytes
SHA-256: 3d9eadf91671033e4331a310c0b0805123b3ad5df85bc8ef5d318b7854ffa5cb

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