Malicious PDF — malware analysis report

Static analysis result for SHA-256 26f2abe5af49a3b4…

MALICIOUS

PDF

33.5 KB Created: 2021-07-04 12:24:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 25ff00a5a9970ba0e9f8e74fcbd3fd46 SHA-1: 4a1c0c6d5bfa1dbb53cf08eb480cc1e74e0d571b SHA-256: 26f2abe5af49a3b42430bcc07bcb12fb6f4ab707a7521fefcc22472eabd68d01
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/free-games-like-coin-master-game-hack PDF link annotation
    • http://www.pspmrsmmbk.com/cendana/repository/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/bank-tycoon-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/pokemon-go-free-coins-2021_GM1094591345.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/hack-de-sexo-roblox-tutorial_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/what-is-coin-master-app_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-roblox-characters_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/what-do-points-do-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/coin-master-app-hacks_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/roblox-project-jojo-hacks_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/kann-man-in-roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/free-coins-on-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/robux-earning-sites_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/hack-coin-master-game-apk-download_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/redline-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-robux-images_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-robux-ge_GM431946152.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_off00002e25.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2E25 22340 bytes
SHA-256: a36a1288c46e6848531940569a47c5ba082f3a04160a10dc02f40581095ae1f8
font_01_sfnt_off00005fd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD6 18428 bytes
SHA-256: ed943cf8b3a940e9ba93039f2e1c3044306ced7212105b5f40adfb060e21551f

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