Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ce44bde2df2f8f9…

MALICIOUS

PDF

39.7 KB Created: 2021-05-10 16:33:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 7e9909f8e3d7bb48e072156d9a14f87f SHA-1: 197c45076921f2973185bbceaa67a1742b3c1465 SHA-256: 2ce44bde2df2f8f9f284bca61a36350eccbdb10804ce721cd5b54e4636b57946
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a "Coin Master" game hack, directing users to a malicious URL. The ML classifier strongly indicates maliciousness, and the embedded URLs suggest a phishing or scam attempt. No scripts were extracted, but the document's structure and content point towards a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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/hack-coin-master-apk-mod-game-hack PDF link annotation
    • http://reisebild.eu/images/wurst-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • http://reisebild.eu/images/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/robloxfun-com-robux_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/coin-master-hack-online-pc_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/get-free-spins-on-coin-master-links_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/mcpe-hacks_GM479516143.pdfIn PDF document text
    • http://reisebild.eu/images/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/free-spin-and-coin-blogspot_GM406889139.pdfIn PDF document text
    • http://reisebild.eu/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://reisebild.eu/images/coin-master-hack-without-verification-site-zyngaplayerforumscom_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_off000040d0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x40D0 25040 bytes
SHA-256: eca8e905ba1a646ef232a61a0c470eff2109a74498c9f45a5c2f48051f290a9e
font_01_sfnt_off0000799b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x799B 18068 bytes
SHA-256: 9a1fe8593802629ca91e824aef9790fcb981ac5ee6ac3e1bb8e6d1b292261c5d