Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc5c6808b422fffa…

MALICIOUS

PDF

34.7 KB Created: 2021-07-06 07:30:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 9cc0eeff575f8849638668956ad65171 SHA-1: ce8ff8c0b7ab00db18ffd2606182eccd7f18ee24 SHA-256: cc5c6808b422fffa67c8b3c2924be3167507c5551aa571f822444dbb9b7950e9
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 0.9980

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 http://netcdn.tw/app/406889139/coin-master-for-pc-free-download-game-hack PDF link annotation
    • http://slims.abulyatama.ac.id//repository/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/pokemon-go-free-and-apple-watch_GM1094591345.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-minecraft-printables-food-labels_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-pubg-uc-hack-2021_GM1330123889.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/daily-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-free-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-make-your-own-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/114-hacks_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/tiktok-free-food-vending-machine_GM835599320.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-tiktok-free-followers_GM835599320.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/pokemon-go-free-7-day-streak_GM1094591345.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-hack-any-roblox-game-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-hack-call-meh-bob-roblox-youtubecom_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/robux-tv-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-epic-mining-hack_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-to-download-minecraft-hacks_GM479516143.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_002_off00002f2d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F2D 23144 bytes
SHA-256: df1284dbf4e9b820f718af40bee98bac44bca492b63c2c6dd894fe2d3c9d36e6
font_01_sfnt_off0000639d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x639D 18732 bytes
SHA-256: 9039d7237ea7013513b5d91e56d3c21495662b50b782ab39a95511540a413671

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