Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc74f4ffa8833e7e…

MALICIOUS

PDF

48.1 KB Created: 2021-05-19 17:43:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3c4e9e6dc8f7d271997d5231bf14d5a2 SHA-1: 9908432a6b8a459f2c440125480b4306bdf6cfb1 SHA-256: cc74f4ffa8833e7e14999406c0920d010e45b6a441f50ee79b7b429c405e6236
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 0.9013

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.xyz/app/1094591345/pokemon-go-free-shiny-eevee-game-hack PDF link annotation
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/can-i-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/hacked-roblox-accounts-list_GM431946152.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/coin-master-free-items_GM406889139.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/is-minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/minecraft-java-code-free_GM479516143.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/coin-master-key-free-spin_GM406889139.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today-2021-free_GM406889139.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/roblox-shirt-template-free_GM431946152.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/mc-hacks_GM479516143.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/coin-master-heaven-daily-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/how-to-get-free-pet-snacks-in-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-game_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_003_off00004b6a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B6A 29608 bytes
SHA-256: 62ec49c38477d57f6630b91d51ce389ce73396ed6385d1b665f736eea18efb45
stream_005_off000099cc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x99CC 18424 bytes
SHA-256: a26f586ff4fe6a97bcc99a3affd38b9f9c21eeea3c463a76a89abe4050b58cc8
font_01_sfnt_off00008db5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DB5 3436 bytes
SHA-256: 97acb3dfe99d8aca5d6f8db8393b488ed98b2263432579da10c481344d87daf1

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