Malicious PDF — malware analysis report

Static analysis result for SHA-256 d854e173a4cd0368…

MALICIOUS

PDF

43.3 KB Created: 2021-05-15 03:34:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 36eecfabfd9e26294d4d6f5c5704921d SHA-1: 652c55c5fc785ed1be67b46c83fad7959e95c018 SHA-256: d854e173a4cd036833331d83af14d90cce5e3362c88eb689a179207b57898056
102 Risk Score

Malware Insights

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

The PDF document contains multiple links and text referencing game hacks and generators, specifically for Coin Master and Roblox. The primary link, https://netcdn.xyz/app/406889139/coin-master-game-hack-version-download-game-hack, is identified as a lure for game hacks. This pattern suggests the document is designed to trick users into downloading malicious software or visiting phishing sites by exploiting their interest in obtaining in-game advantages. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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-game-hack-version-download-game-hack PDF link annotation
    • http://fmbompastor.com.br/images/hack-coin-master-ios-download_GM406889139.pdfIn PDF document text
    • http://fmbompastor.com.br/images/how-to-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://fmbompastor.com.br/images/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdfIn PDF document text
    • http://fmbompastor.com.br/images/roblox-but_GM431946152.pdfIn PDF document text
    • http://fmbompastor.com.br/images/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://fmbompastor.com.br/images/coin-master-2021-free-spins-link_GM406889139.pdfIn PDF document text
    • http://fmbompastor.com.br/images/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://fmbompastor.com.br/images/coin-master-32-mod-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://fmbompastor.com.br/images/free-dominus-roblox_GM431946152.pdfIn PDF document text
    • http://fmbompastor.com.br/images/coin-master-app-hack_GM406889139.pdfIn PDF document text
    • http://fmbompastor.com.br/images/hack-my-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://fmbompastor.com.br/images/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://fmbompastor.com.br/images/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://fmbompastor.com.br/images/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://fmbompastor.com.br/images/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://fmbompastor.com.br/images/coin-master-free-coins-spins_GM406889139.pdfIn PDF document text
    • http://fmbompastor.com.br/images/get-more-robux_GM431946152.pdfIn PDF document text
    • http://fmbompastor.com.br/images/how-to-get-roebucks_GM431946152.pdfIn PDF document text
    • http://fmbompastor.com.br/images/robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://fmbompastor.com.br/images/hacks-para-roblox_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000045ef.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x45EF 28388 bytes
SHA-256: 94701b2b38032b48b26cd8a58829f287aacab4dd76c77dda89e520e4e7dd7397
font_01_sfnt_off00008579.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8579 18692 bytes
SHA-256: bf7747fad6589835e27396875397848ee10c05064cdddbf89c0c768158d1b55c

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