Malicious PDF — malware analysis report

Static analysis result for SHA-256 404c19827e13d530…

MALICIOUS

PDF

45.4 KB Created: 2021-05-19 19:01:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 341e9e3f11a40fa54410b3d6107179b4 SHA-1: 914eb67e9273a66a4fd27d74d209ac5ef7c3ac4e SHA-256: 404c19827e13d53076e7f0e38957b3bfa5979a32164538ba91b2eede7c9550c0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains heuristics indicating it links to a game hack lure, specifically targeting 'Coin Master' and 'Roblox' players. The embedded URLs point to sites offering 'generators' or 'hacks', which are common pretexts for phishing or malware distribution. While no scripts were directly extracted, the nature of the lures and the presence of numerous related URLs suggest a phishing or social engineering attack aimed at tricking users into visiting potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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-real-hack-game-hack PDF link annotation
    • http://new-era.com.tw/image/data/files/daily-free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/roblox-toy-codes-free_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-promo-code-2021_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/hack-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-robux-working_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/minecraft-creative-mode-free_GM479516143.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/roblox-army-robux_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/gameoffice-net-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/coin-master-hack-ios-without-verification_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/how-to-get-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/free-robux-obby-2021_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/500-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/www-robux-redeem_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004cef.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CEF 25392 bytes
SHA-256: 30d1132d4be3497afca45da6528d0db1b52546d7d21d01498e13a32cb61fb6bd
font_01_sfnt_off000086c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86C1 2820 bytes
SHA-256: 96a70491b0783ad8c6fc9b11a18f021aa22c69ac41ee4499b781d16a1b99b689
font_02_sfnt_off00009062.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9062 17788 bytes
SHA-256: 17f046e272c8ee70cc4b817224b52c180b33e2590cfcc2d916d545b5a6c5f49a

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