Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ad4ba86ab3a20a2…

MALICIOUS

PDF

41.7 KB Created: 2021-05-10 15:44:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 047bf51a5ba31b713235a0d0ef0d8d10 SHA-1: 842d8fc5b4009d41a891a6f30d8b9401aaa9f647 SHA-256: 1ad4ba86ab3a20a292e480ddfc276f97995f7726a1b594e604bc963cbe8b513e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'Coin Master' game hacks, directing users to a malicious URL. The ML classifier strongly indicates maliciousness, and the embedded URLs are associated with game-related cheats and downloads. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest an attempt to redirect users to potentially malicious content or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/coin-master-spin-link-today-2021-game-hack PDF link annotation
    • http://dohafashionstores.com/uploaded_files/userfiles/files/how-to-get-free-coins-in-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.dohafashionstores.com/uploaded_files/userfiles/files/coin-master-spin-hack-trick_GM406889139.pdfIn PDF document text
    • http://dohafashionstores.com/uploaded_files/userfiles/files/coin-master-free-spins-bit-ly_GM406889139.pdfIn PDF document text
    • http://www.dohafashionstores.com/uploaded_files/userfiles/files/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.dohafashionstores.com/uploaded_files/userfiles/files/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • http://dohafashionstores.com/uploaded_files/userfiles/files/corn-master_GM406889139.pdfIn PDF document text
    • http://dohafashionstores.com/uploaded_files/userfiles/files/coin-master-free-mighty-lion-card_GM406889139.pdfIn PDF document text
    • http://www.dohafashionstores.com/uploaded_files/userfiles/files/spin-coin-master_GM406889139.pdfIn PDF document text
    • http://www.dohafashionstores.com/uploaded_files/userfiles/files/safe-hack-for-coin-master-android_GM406889139.pdfIn PDF document text
    • http://dohafashionstores.com/uploaded_files/userfiles/files/archery-master-3d-hack-unlimited-coins-cheats_GM406889139.pdfIn PDF document text
    • http://www.dohafashionstores.com/uploaded_files/userfiles/files/free-robux-app_GM431946152.pdfIn PDF document text
    • http://www.dohafashionstores.com/uploaded_files/userfiles/files/coin-master-online-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://www.dohafashionstores.com/uploaded_files/userfiles/files/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://dohafashionstores.com/uploaded_files/userfiles/files/how-to-hack-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://www.dohafashionstores.com/uploaded_files/userfiles/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://dohafashionstores.com/uploaded_files/userfiles/files/hack-game-coin-master_GM406889139.pdfIn PDF document text
    • http://www.dohafashionstores.com/uploaded_files/userfiles/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.dohafashionstores.com/uploaded_files/userfiles/files/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://www.dohafashionstores.com/uploaded_files/userfiles/files/hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://dohafashionstores.com/uploaded_files/userfiles/files/coin-master-free-spins-cash_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_003_off00004917.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4917 23756 bytes
SHA-256: 7ff8fcfb0b16e6623367add07cee647344e2b5c27f14fad9ace36ebf90e104a1
font_01_sfnt_off00007f20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F20 18648 bytes
SHA-256: 85a64f08e45ce4d12cb3dea07aac547d867e231e390d244bf8ece1ec3ac8270e