Malicious PDF — malware analysis report

Static analysis result for SHA-256 67c6f2d74f869580…

MALICIOUS

PDF

43.9 KB Created: 2021-05-19 01:35:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: c9b6370f6342d94f9d8a1b2aa019523d SHA-1: d95129fd7d34f781caa5bc247979e43180f20983 SHA-256: 67c6f2d74f869580dcbc897c69ef882258f1617fe7c90b83c7ed07e46e3ec75e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites offering game hacks and generators, such as 'coin-master-hack-app-game-hack'. The ML classifier also flagged this PDF as malicious. The presence of these lures suggests an attempt to trick users into visiting potentially harmful sites, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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-hack-app-game-hack PDF link annotation
    • https://smark.com.tw/image/data/files/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/hack-robux_GM431946152.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/coin-master-hack-link_GM406889139.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/how-to-get-free-robux-on-android_GM431946152.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/free-spins-coin-master-links-app_GM406889139.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/coin-master-hacks-no-human-verification_GM406889139.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/coin-master-hack-ios-no-jailbreak_GM406889139.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/impact-minecraft-hack_GM479516143.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/all-minecraft-handbooks_GM479516143.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/free-spin-and-win-coin-master_GM406889139.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/free-robux-exe_GM431946152.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/coin-master-daily-free-spins-25_GM406889139.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004862.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4862 24252 bytes
SHA-256: 3813adaefb930f7f46d845745e85f44708ab503ac3633e2932cdfd99ebac1a06
font_01_sfnt_off00007ff5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF5 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off000089e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89E0 17892 bytes
SHA-256: f939fda97690d6a809d743b342add8ec97984f5e978608423f32dd39679c4d64

Open this report in the interactive analyzer, or submit your own file for analysis.