Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd4e80527d03d64a…

MALICIOUS

PDF

34.2 KB Created: 2021-07-05 19:57:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 2070e0aae38cadbb7f11cbb19ede93bc SHA-1: 3434eccc40a967c86e721f189f80500446edeb9f SHA-256: bd4e80527d03d64aba28738e4ba4a7e7f504440486f3b37ec43e021336e6bbf8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains multiple embedded URLs that redirect to sites offering "game hacks" and "free generators," a common lure for phishing or malware distribution. The heuristic PDF_GAME_HACK_REDIRECT_LURE specifically identifies this deceptive tactic. The primary URL, http://netcdn.tw/app/406889139/hack-coin-master-for-android-game-hack, is likely the initial landing page for the malicious campaign.

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/hack-coin-master-for-android-game-hack PDF link annotation
    • http://lib.smklabor.sch.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-202100_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/800-robux-free_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/minecraft-net-free_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-spins-and-coins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-generator-no-download_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/ban-hack-roblox_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-spins-on-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-how-to-give-self-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-minecraft-worlds_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-obby-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-net_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
font_00_sfnt_off00003034.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3034 22800 bytes
SHA-256: 0dd70eb418f7064dc4d723fd83f60797e91d80827bc802d99891f12e4741f635
font_01_sfnt_off000062f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F8 18340 bytes
SHA-256: ba94336477aed2da98f1e66ca7f9a6cc3eca9255aee4556c7b4d343eb67aac4d

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