Malicious PDF — malware analysis report

Static analysis result for SHA-256 9026d648c3ac69e9…

MALICIOUS

PDF

45.6 KB Created: 2021-06-03 15:58:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 189640ea7f1b46b91309c4d169196ce0 SHA-1: 8814a6acd6702dd0c1d9c7d47c3164d440617c2f SHA-256: 9026d648c3ac69e949b675f88404e916e8118093e4848c7770b3003b83ca5bcd
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/431946152/how-to-get-free-robux-not-a-scam-game-hack PDF link annotation
    • https://learning.man3blitar.my.id/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://learning.man3blitar.my.id/__statics/gudangsoal/files/pokemon-go-free-incubator_GM1094591345.pdfIn PDF document text
    • https://learning.man3blitar.my.id/__statics/gudangsoal/files/coin-master-hack-september-2021_GM406889139.pdfIn PDF document text
    • https://learning.man3blitar.my.id/__statics/gudangsoal/files/coin-master-hack-with-facebook-login_GM406889139.pdfIn PDF document text
    • https://learning.man3blitar.my.id/__statics/gudangsoal/files/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • https://learning.man3blitar.my.id/__statics/gudangsoal/files/best-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • https://learning.man3blitar.my.id/__statics/gudangsoal/files/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • https://learning.man3blitar.my.id/__statics/gudangsoal/files/pop-slots-free-vegas-casino-slots-machine-game-coin-master_GM406889139.pdfIn PDF document text
    • https://learning.man3blitar.my.id/__statics/gudangsoal/files/coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • https://learning.man3blitar.my.id/__statics/gudangsoal/files/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • https://learning.man3blitar.my.id/__statics/gudangsoal/files/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://learning.man3blitar.my.id/__statics/gudangsoal/files/coin-master-hack-without-verification-ios_GM406889139.pdfIn PDF document text
    • https://learning.man3blitar.my.id/__statics/gudangsoal/files/coin-master-mod-apk-latest-version-free-download_GM406889139.pdfIn PDF document text
    • https://learning.man3blitar.my.id/__statics/gudangsoal/files/free-robux-clothes_GM431946152.pdfIn PDF document text
    • https://learning.man3blitar.my.id/__statics/gudangsoal/files/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • https://learning.man3blitar.my.id/__statics/gudangsoal/files/minecraft-dungeons-free-download-pc_GM479516143.pdfIn PDF document text
    • https://learning.man3blitar.my.id/__statics/gudangsoal/files/gaming-dunia-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://learning.man3blitar.my.id/__statics/gudangsoal/files/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • https://learning.man3blitar.my.id/__statics/gudangsoal/files/free-minecraft-website_GM479516143.pdfIn PDF document text
    • https://learning.man3blitar.my.id/__statics/gudangsoal/files/download-hack-coin-master-apk_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_off000053be.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53BE 25216 bytes
SHA-256: 815103e703f8eaf5873bc587fcd6ad5c2ab08c8ef930044572490bbe2bcb6bda
font_01_sfnt_off00008e19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E19 18768 bytes
SHA-256: 022361ef70d0601eb321de045a15355e0ef134abc2a3262f50e5e6000d82738d

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